Wanyan, Qianru published the artcileTuning Degradation and Mechanical Properties of Poly(l-lactic acid) with Biomass-Derived Poly(l-malic acid), Safety of (S)-2-hydroxysuccinic acid, the main research area is polymalic acid PLLA blend morphol mech thermal property.
Poly(l-malic acid) (PLMA) oligomer was used as the minor phase to prepare the blends with poly(l-lactic acid) (PLLA), with the objective to develop fully biomass-derived and biodegradable aliphatic polyester blends with balanced overall performance. The phase behavior and viscoelastic responses reveals that the two phases are thermodynamically immiscible, showing high level of interfacial tension in their blends. Poor phase adhesion and lower mass weight of PLMA results in an evident decrease of mech. properties of the blends as compared to PLLA. The dilute effect caused by the addition of PLMA, however, promotes the cold crystallization of PLLA. Therefore, the strength and modulus losses of the blends can be remedied well by the annealing in solid state. Besides, the degradation rates can also be regulated by the presence of hydrophilic PLMA phase. In this case, a fully green PLLA/PLMA blend with balanced properties is fabricated. This work also provides useful information developing new applications of PLMA.
Journal of Polymers and the Environment published new progress about Adhesion, physical. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Safety of (S)-2-hydroxysuccinic acid.
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts