Tag: 100-200

Paving the Way to Sustainable Waterborne Pressure-Sensitive Adhesives Using Terpene-Based Triblock Copolymers was written by Noppalit, Sayrung;Simula, Alexandre;Billon, Laurent;Asua, Jose M.. And the article was included in ACS Sustainable Chemistry & Engineering in 2019.Safety of 3,7-Dimethyloctan-1-ol The following contents are mentioned in the article:

Emerging pressure-sensitive adhesives (PSAs) formulations based on triblock copolymers typically rely on solvent-borne or bulk processes and are mostly composed of petroleum-derived monomers. Herein, we aim to go beyond the status quo and synthesize hard-soft-hard and soft-hard-soft triblock copolymers using tetrahydrogeraniol acrylate (THGA) and cyclademol acrylate (CDMA) as biosourced monomers. Great care is taken on the synthesis of the monomers and polymers thereof to minimize the environmental impact of the entire process. Hence, the copolymers are obtained by reversible addition-fragmentation chain transfer (RAFT) miniemulsion polymerization as a waterborne process. The process is readily scalable, as no intermediate purification of the first block is required. Good control is achieved for the triblock copolymers with high mol. weight, with M_n ≈ 105 500 g·mol^-1 and D ≈ 1.6 for the PTHGA-b-PCDMA-b-PTHGA. The nanophase segregation of the copolymers is later evidenced by at. force microscopy (AFM) and rheol. measurements. Finally, the formulations show good adhesive performance, in comparison to triblock copolymers partially based on styrene. Readily scalable triblock copolymer features based on terpene derivatives are paving the way to sustainable waterborne pressure-sensitive adhesives. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Safety of 3,7-Dimethyloctan-1-ol).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Safety of 3,7-Dimethyloctan-1-ol

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Cascade transformations of (±)-citronellal to menthol over extruded Ru-MCM-41 catalysts in a continuous reactor was written by Vajglova, Zuzana;Kumar, Narendra;Peurla, Markus;Eranen, Kari;Maki-Arvela, Paivi;Murzin, Dmitry Yu. And the article was included in Catalysis Science & Technology in 2020.Name: 3,7-Dimethyloctan-1-ol The following contents are mentioned in the article:

Cascade transformations of (±)-citronellal in a continuous mode were investigated over a bifunctional shaped ruthenium catalyst bearing metal clusters of the size 7-13 nm. Four types of Ru/H-MCM-41 extrudates (1.5 x 10 mm) containing 30% of Bindzil-50/80 colloidal silica binder were prepared varying in metal location and metal-to-acid ratio, while the concentration of Bronsted and Lewis acid sites and textural properties of the final extrudates were comparable. Catalytic tests were performed in the trickle-bed reactor under 70°C, 10 bar of H₂, and the initial reactant concentration in cyclohexane 0.086 mol L^-1 for the liquid residence time of 12.5 min. As a reactant, isopulegol, citronellol or (±)-citronellal was used. Metal location in extrudates has a significant effect on the catalytic activity and selectivity especially in terms of isopulegol isomers which content correlated with the metal-to-acid site ratio. Stereoselectivity to the desired (±)-menthol was 68-70%. The highest amount of the desired menthol, 32% yield, was obtained over extrudates where Ru was deposited on the catalytic support, i.e. with the shortest distance between the acid and metal sites, the lowest Bronsted acidity, the lowest Bronsted-Lewis acid sites ratio, the highest sp. surface area and the narrowest range of the Ru particle size distribution. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Name: 3,7-Dimethyloctan-1-ol).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Name: 3,7-Dimethyloctan-1-ol

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Phytochemical composition and biological activities of essential oils extracted from leaves and flower parts of Corymbia citriodora (Hook.) was written by Sarma, N.;Gogoi, R.;Loying, R.;Begum, T.;Munda, S.;Pandey, S. K.;Lal, M.. And the article was included in Journal of Environmental Biology in 2021.Quality Control of 3,7-Dimethyloctan-1-ol The following contents are mentioned in the article:

The present study is focused on phytochem. anal. and different biol. activities of leaf and floral parts essential oil of Corymbia citriodora. GC/MS anal. was conducted using HP-5MS column. DPPH free radical scavenging, reducing power assay were used for evaluating the antioxidant activity, protein denaturation, protease inhibitory assay for anti-inflammatory, Allium cepa assay for cytotoxicity anal. and Vigna radiata germination assay for herbicidal activity. GC/MS anal. revealed α-pinene, citronellal, o-cymene, 10-epi-eudesmol, α-eudesmol as the major compounds in the floral part essential oil while citronellal, citronellyl acetate, trans-caryophyllene, were the major compounds in the leaf essential oil. Essential oils showed the highest antibacterial activity towards Staphylococcus aureus and Bacillus subtilis at 500μg ml^-1 and antifungal activity against Aspergillus fumigatus and Saccharomyces cerevisiae at 500μg ml^-1 Allium cepa assay revealed that both the essential oils possessed negligible mutagenic effects. The essential oils showed both antioxidant and anti-inflammatory activities. C. citriodora leaf essential oil showed herbicidal effects of the essential oils. The present study showed that both leaf and floral part essential oil of C. citriodora can be utilize in different industrial prospectives. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Quality Control of 3,7-Dimethyloctan-1-ol).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Quality Control of 3,7-Dimethyloctan-1-ol

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

One pot menthol synthesis via hydrogenations of citral and citronellal over montmorillonite-supported Pd/Ni-heteropoly acid bifunctional catalysts was written by Shah, Abdul Karim;Maitlo, Ghulamullah;Shah, Aqeel Ahmed;Channa, Iftekhar Ahmed;Kandhro, Ghulam Abbas;Maitlo, Hubdar Ali;Bhatti, Umair Hassan;Shah, Ahmed;Memon, Abdul Qayoom;Jatoi, Abdul Sattar;Park, Yeung Ho. And the article was included in Reaction Kinetics, Mechanisms and Catalysis in 2019.COA of Formula: C10H22O The following contents are mentioned in the article:

Menthol synthesis is possible through citral and citronellal hydrogenations via following multistage chem. reactions such as hydrogenation and cyclization. This research mainly focuses on a design of selective, active and cost-effective metal-acid (bifunctional) catalysts for menthol production via citral and citronellal hydrogenations. More specifically, Pd and Ni metals were impregnated over acidic support (e.g., hetero-poly acid supported montmorillonite, HPA_MM). The prepared catalysts were characterized by BET, pyridine adsorption and amine titration methods. Some of the most important parameters such as metal type and loading; applied pressure and reaction time have been investigated throughout this work. The obtained results reveals that the 8 wt% Ni-HPA-MM catalyst (Cat-5) has produced 63% menthols (initial reaction rate 0.126 mmol/min) from citral hydrogenation (80°C, 1.0 MPa) within 24 h. Similarly, during lower applied pressure (0.5 MPa), the production of menthol was significantly improved (approx. 98% of menthol, initial reaction rate ~0.138 mmol/min) with the application of 8 wt% Ni-HPA-MM catalyst (Cat-5) in citronellal hydrogenation. Higher menthol selectivity was achieved from both reactions (citral and citronellal hydrogenation) which might be due to the presence of strong Lewis and medium Bronsted acid sites. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8COA of Formula: C10H22O).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.COA of Formula: C10H22O

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Extraordinary magnetic field effects on the LC phases of homochiral and racemic 4-cyanoresorcinol-based diamagnetic bent-core mesogens was written by Ocak, Hale;Bilgin Eran, Belkiz;Nuray, Sevgi;Ozkonstanyan, Aykun;Poppe, Silvio;Tschierske, Carsten. And the article was included in Journal of Materials Chemistry in 2021.Name: 3,7-Dimethyloctan-1-ol The following contents are mentioned in the article:

4-Cyanoresorcinol based bent-core compounds combining one branched chiral with one achiral linear end-chain have been synthesized in enatiomerically pure and one compound also in racemic form. All homochiral compounds form a chiral cybotactic nematic phase at relatively low temperature with a selective reflection ranging from the near IR to near UV. For the compound with the longest chains superparaelec. and antiferroelec. switching smectic phases were observed, whereas the corresponding racemate is non-polar. This is attributed to sterically induced polarization by the denser packing of uniform enantiomers due to chirality synchronization of the helical conformers. For the racemic mixture this chirality synchronization requires addnl. surface stabilization. There are unprecedented effects of an applied magnetic field (1 T) on the LC phases, leading to a layer shrinkage by 6-13% for the enantiomer and a layer expansion by 5-8% for the racemate. It is proposed that the magnetic field couples with the π-systems of the almost rod-like mols. For the racemate this increases the core order, whereas for the enantiomer the reduction of the heliconical twist is considered to provide the major effect. These magnetic field effects could lead to new applications of chiral LC materials at the cross-over between rod-like and bent shapes. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Name: 3,7-Dimethyloctan-1-ol).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Name: 3,7-Dimethyloctan-1-ol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Novel random PBS-based copolymers containing aliphatic side chains for sustainable flexible food packaging was written by Guidotti, Giulia;Soccio, Michelina;Siracusa, Valentina;Gazzano, Massimo;Salatelli, Elisabetta;Munari, Andrea;Lotti, Nadia. And the article was included in Polymers (Basel, Switzerland) in 2017.Related Products of 115-84-4 The following contents are mentioned in the article:

In the last decade, there has been an increased interest from the food packaging industry toward the development and application of biodegradable and biobased plastics, to contribute to the sustainable economy and to reduce the huge environmental problem afflicting the planet. In this framework, the present paper describes the synthesis of novel PBS (poly(butylene succinate))-based random copolymers with different composition containing glycol sub-units characterized by alkyl pendant groups of different length. The prepared samples were subjected to mol., thermal, diffractometric and mech. characterization. The barrier performances to O₂, CO₂ and N₂ gases were also evaluated, envisioning for these new materials an application in food packaging. The presence of the side alkyl groups did not alter the thermal stability, whereas it significantly reduced the sample crystallinity degree, making these materials more flexible. The barrier properties were found to be worse than PBS; however, some of them were comparable to, or even better than, those of Low D. Polyethylene (LDPE), widely employed for flexible food packaging. The entity of variations in the final properties due to copolymerization were more modest in the case of the co-unit with short side Me groups, which, when included in the PBS crystal lattice, causes a more modest decrement of crystallinity degree. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Related Products of 115-84-4).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Alcohols are among the most common organic compounds. They are used as sweeteners and in making perfumes, are valuable intermediates in the synthesis of other compounds, and are among the most abundantly produced organic chemicals in industry. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Related Products of 115-84-4

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kinetic Model of Linear Complex Esterification between 2-Butyl-2-ethyl-1,3-propanediol, Adipic Acid, and Octanoic Acid was written by Lehmus, Matti O.;Toppinen, Sami;Selaentaus, Maaria K.;Kopola, Nina M.;Krause, A. Outi I.. And the article was included in Industrial & Engineering Chemistry Research in 1999.Quality Control of 2-Butyl-2-ethylpropane-1,3-diol The following contents are mentioned in the article:

In the present study, a kinetic model of the autocatalyzed linear complex esterification of 2-butyl-2-ethyl-1,3-propanediol (BEPD), octanoic acid, and adipic acid was developed. The presented model describes complex esterification kinetics at low to intermediate conversions. For the first time, the concentrations of all components involved in the complex esterification reaction system were modeled individually, and the model was able to estimate accurately all 10 analyzed component concentrations in the entire temperature range studied. The model utilizes a simple second order rate law derived from the esterification mechanism to describe esterification kinetics. In order to avoid overparameterization of the model, simplifying assumptions regarding substitution effects were made which allowed the description of the entire set of 125 plausible esterification reactions with six kinetic parameters. The model was applied to both the simple polyol esterification of BEPD and octanoic acid and the complex esterification involving addnl. adipic acid, and all esterifications were carried out in the temperature range of 170-190 °C. As kinetic parameters of the simple polyol esterification could also be used in the modeling of the complex esterification, only four kinetic parameters were needed to be fitted simultaneously to describe complex esterification kinetics. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Quality Control of 2-Butyl-2-ethylpropane-1,3-diol).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Quality Control of 2-Butyl-2-ethylpropane-1,3-diol

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Effects of Various 1,3-Propanediols on the Properties of Poly(propylene furandicarboxylate) was written by Wang, Jinggang;Sun, Liyuan;Shen, Zhisen;Zhu, Jin;Song, Xingliang;Liu, Xiaoqing. And the article was included in ACS Sustainable Chemistry & Engineering in 2019.Recommanded Product: 2-Butyl-2-ethylpropane-1,3-diol The following contents are mentioned in the article:

Diols or acids with different skeletal structures could be used to polymerize 2,5-furandicarboxylic acid (FDCA) to adjust the properties of FDCA-based polyesters. A series of FDCA polyesters with similar skeletal structure as poly(propylene furandicarboxylate) (PPF) were prepared from FDCA and 1,3-propanediols containing different substituent groups. The effect of substituent groups on the thermal properties and gas barrier behaviors were studied by differential scanning calorimetry (DSC), thermogravimetric anal. (TGA), dynamic mech. anal. (DMA), rheol. anal. (RA), and positron annihilation lifetime spectroscopy (PALS). The substituent -CH₃ significantly influenced the thermal properties of the polyesters, where the glass transition temperature (T_g) and crystallizability increased from PPF to poly(neopentyl glycol furandicarboxylate) (PNF) and then decreased from PNF to poly(2-ethyl-2-butyl-1,3-propylene furandicarboxylate) (PEBF). PNF displayed the highest T_g of 70 °C and T_m of 201 °C with a ΔH_m of 32.1 J/g. PPF possessed a T_m of 173 °C with ΔH_m of 0.9 J/g, while poly(2-methyl-1,3-propylene furandicarboxylate) (PMF) was an amorphous polyester. The gas barrier properties followed the trend of PPF > PMF > PNF due to the increased β relaxation and fractional free volume (FFV) after the introduction of lateral -CH₃ groups. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Recommanded Product: 2-Butyl-2-ethylpropane-1,3-diol).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Recommanded Product: 2-Butyl-2-ethylpropane-1,3-diol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Linear glycidyl carbamate (GC) resins for highly flexible coatings was written by Harkal, Umesh D.;Muehlberg, Andrew J.;Webster, Dean C.. And the article was included in Journal of Coatings Technology and Research in 2013.Reference of 115-84-4 The following contents are mentioned in the article:

An approach to the design of highly flexible coatings based on glycidyl carbamate (GC) chem. is presented. In past work, GC resins had been synthesized by reacting polyisocyanates such as hexamethylene diisocyanate biuret or hexamethylene diisocyanate isocyanurate resins with glycidol. When crosslinked with amines, due to their high functionality, these resins form hard and tough coatings, but the coatings have limited flexibility. To obtain coatings with good flexibility, several GC resins were synthesized using linear and cycloaliphatic diisocyanates and a combination of diols and triol with glycidol. The combination of linear diisocyanates and diols introduces a more linear structure in the GC resin compositions Crosslinked coatings were obtained using two amine crosslinkers, para-aminocyclohexyl methane (PACM) and a com. polyamide, Ancamide-2353 (A-2353). The flexibility of the coatings was characterized using reverse impact test, GE impact test, and elongation at break in tensile test. The coatings were further characterized to determine their chem. resistance, hardness, thermal stability, and corrosion resistance. The diisocyanate composition and composition of diols and triol influenced the performance of the coatings. In order to understand the influence of the composition of the GC resins on their performance, coatings were characterized using differential scanning calorimetry and dynamic mech. anal. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Reference of 115-84-4).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Reference of 115-84-4

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Novel phenazine fused triphenylene discotic liquid crystals: synthesis, characterisation, thermal, optical and nonlinear optical properties was written by Gowda, Ashwathanarayana;Jacob, Litwin;Joy, Nithin;Philip, Reji;Kumar, Sandeep. And the article was included in New Journal of Chemistry in 2018.Product Details of 106-21-8 The following contents are mentioned in the article:

A straightforward synthesis of novel phenazine fused triphenylene discotic liquid crystals (DLCs) is realized. The condensation of 3,4-diaminobenzoic acid with a triphenylene-1,2-diquinone intermediate gives an acid derivative which upon esterification with aliphatic alcs. produces the corresponding monomeric ester derivatives of the phenazine fused triphenylene discotic liquid crystals. The intermediate acid derivative exhibits a rectangular columnar phase along with a high isotropic phase transition temperature However, the monomeric ester derivatives show a hexagonal columnar mesophase over a broad temperature range and stable when decreased to room temperature upon cooling from the isotropic phase. The mesomorphic properties of the acid and monomeric ester derivatives of the phenazine fused triphenylene DLCs were characterized by polarized optical microscopy (POM), DSC and x-ray diffraction studies (XRD). The mol. structures of the intermediate and final compounds were characterized by spectral and elemental anal. The photophys. properties of all the monomeric ester compounds were studied in an anhydrous chloroform solvent and absorption bands around 291-472 nm and the corresponding emission bands at 658-661 nm were observed, resp. The π-extended conjugation in these materials gives rise to high nonlinear optical properties. These materials have immense potential for use in electrooptical applications. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Product Details of 106-21-8).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.Product Details of 106-21-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts