Compatibilized poly(ε-caprolactone)/poly(L-lactide) blends for biomedical uses

被引：0
|
作者：
Maglio, G
Migliozzi, A
Palumbo, R
Immirzi, B
Volpe, MG
机构：
[1] Univ Naples Federico II, Dipartimento Chim, I-80134 Naples, Italy
[2] CNR, Ist Ric & Tecnol Mat Plast, I-80072 Arco Felice, Napoli, Italy
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 1999年 / 20卷 / 04期
关键词：
D O I：
10.1002/(SICI)1521-3927(19990401)20:4<236::AID-MARC236>3.3.CO;2-M
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A binary poly(L-lactide)/poly(epsilon-caprolactone) (PLLA/PCL)(a) (70/30 w/w) blend and a ternary PLLA/PCL/PLLA-PCL-PLLA blend of the same composition which contains 4 wt.-% of a triblock PLLA-PCL-PLLA copolyester as compatibilizing agent were prepared by melt mixing at 200 degrees C. Investigation of the thermal and mechanical properties of the blends and scanning electron microscopy of their fracture surfaces showed in the case of the ternary blend a better state of dispersion of PCL in the PLLA matrix and an improved toughness.
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页码：236 / 238
页数：3
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