Potential transparent PLA impact modifiers based on PMMA copolymers

被引：25

作者：

Choochottiros, Chantiga ^{[1
]}

Chin, In-Joo ^{[1
]}

机构：

[1] Inha Univ, Dept Polymer Sci & Engn, Inchon 402751, South Korea

来源：

EUROPEAN POLYMER JOURNAL | 2013年 / 49卷 / 04期

关键词：

Poly(methyl methacrylate); Polylactide; Impact modifier; Transparency; Free radical; EPSILON-CAPROLACTONE; POLY(LACTIC ACID); L-LACTIDE; POLYLACTIDE; PLASTICIZERS;

D O I：

10.1016/j.eurpolymj.2012.12.008

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Two parallel routes were employed to prepare potential transparent impact modifiers for polylactide(PLA). Poly(butadiene-co-methyl methacrylate-co-butyl methacrylate-co-hydroxyethyl methacrylate) or poly(butadiene-co-methyl methacrylate-co-butyl acrylate-co-hydroxyethyl methacrylate) (collectively abbreviated as BMBH copolymer) was prepared by free radical method, possessing polybutadiene domain as rubbery segment to absorb impact energy. It also contained another segment which was, composed of methyl methacrylate based polymers to provide optical transparency. Compound of PEA and BMBH copolymers showed an increase of impact strength of only 12% compared to virgin PEA. The other copolymer, poly(butadiene-co-lactide-co-methyl methacrylate-co-butyl methacrylate) (abbreviated as BLMB), consisted of not only polybutadiene and methyl methacrylate based polymer, but also polylactide segment to ascertain compatibility with the PEA matrix. Addition of BLMB copolymers increased the impact strength of PEA up to 25%, while retaining optical transparency. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：957 / 966

页数：10

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