Effect of Metallic Salts of Phenylmalonic Acid on the Crystallization of Poly(L-lactide)

被引:13
作者
Li, Chenglang [1 ]
Dou, Qiang [1 ]
机构
[1] Nanjing Tech Univ, Coll Mat Sci & Engn, Nanjing 210009, Jiangsu, Peoples R China
来源
JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS | 2016年 / 55卷 / 02期
关键词
crystallization; morphology; nucleating agent; poly(L-lactide); POLY(LACTIC ACID); EPITAXIAL CRYSTALLIZATION; BIODEGRADABLE POLYESTERS; CRYSTAL-STRUCTURE; MELTING BEHAVIOR; FORM; MORPHOLOGY; POLYLACTIDE; COMPOUND; POLYMERS;
D O I
10.1080/00222348.2015.1125050
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The effect of the metallic salts of phenylmalonic acid (PMA), as novel nucleating agents, on the melt and crystallization behaviors, spherulitic morphologies, and crystal structures of poly(L-lactide) (PLLA) was studied by means of differential scanning calorimetry, polarized light microscopy, and wide angle X-ray diffraction (WAXD). The results showed that calcium and cadmium salts of PMA are good nucleating agents for PLLA. Lithium, sodium, magnesium, strontium, and zinc salts of PMA are moderate nucleating agents, barium and aluminum salts of PMA are weak nucleating agents, while potassium phenylmalonate is not a nucleating agent for PLLA. The presence of nucleating agents significantly increased the number and decreased the size of the spherulites, but the crystal structures of the nucleated PLLA samples were not changed.
引用
收藏
页码:128 / 137
页数:10
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