Recent progress of preparation of branched poly(lactic acid) and its application in the modification of polylactic acid materials

被引：57
|
作者：
Zhao, Xipo [1 ]
Li, Juncheng [1 ]
Liu, Jinchao [1 ]
Zhou, Weiyi [1 ]
Peng, Shaoxian [1 ]
机构：
[1] Hubei Univ Technol, Collaborat Innovat Ctr Green Light Weight Mat & P, Hubei Prov Key Lab Green Mat Light Ind, Wuhan 430068, Peoples R China
来源：
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2021年 / 193卷
基金：
中国国家自然科学基金;
关键词：
Poly(lactic acid); Branched structure; Blending modification; RING-OPENING POLYMERIZATION; INDUCED REACTIVE EXTRUSION; ELECTRON-BEAM IRRADIATION; HIGH-MELT-STRENGTH; POLY LACTIC-ACID; CRYSTALLIZATION BEHAVIOR; MECHANICAL-PROPERTIES; STEREOCOMPLEX CRYSTALLIZATION; POLY(L-LACTIC ACID); PHYSICAL-PROPERTIES;
D O I：
10.1016/j.ijbiomac.2021.10.154
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Poly (lactic acid) (PLA) with branched structure has abundant terminal groups, high melt strength, good rheological properties, and excellent processability; it is a new research and application direction of PLA materials. This study mainly summarizes the molecular structure design, preparation methods, basic properties of branched PLA, and its application in modified PLA materials. The structure and properties of branched PLA prepared by ring-opening polymerization of monomer, functional group polycondensation, and chain extender in the processing process were introduced. The research progress of in situ formation of branched PLA by initiators, multifunctional monomers/additives through dynamic vulcanization, and irradiation induction was described. The effect of branched PLA on the structure and properties of linear PLA materials was analyzed. The role of branched PLA in improving the crystallization behavior, phase morphology, foaming properties, and mechanical properties of linear PLA materials was discussed. At the same time, its research progress in biomedicine and tissue engineering was analyzed. Branched PLA has excellent compatibility with PLA, which has important research value in regulating the structure and properties of PLA materials.
引用
收藏
页码：874 / 892
页数：19
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