Mechanical properties and deformation mechanisms of poly(styrene-b-butylmethacrylate) diblock copolymers

被引：0
作者：
Weidisch, R
Horig, E
Lach, R
Ensslen, M
Michler, GH
Stamm, M
Jerome, R
机构：
[1] Max Planck Inst Polymerforsch, D-55021 Mainz, Germany
[2] Univ Halle Wittenberg, Inst Werkstoffwissensch, D-06099 Halle, Germany
[3] Univ Liege, Ctr Educ & Res Macromol, B-4000 Liege, Belgium
来源：
POLYMERS FOR ADVANCED TECHNOLOGIES | 1998年 / 9卷 / 10-11期
关键词：
block copolymers; mechanical properties; crazing; morphology;
D O I：
暂无
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 mechanical properties of poly(styrene-b-butylmethacrylate) diblock copolymers (PS-b-PBMA) with different lengths of polystyrene block were investigated. The copolymers display a composition range where the tensile strength of the block copolymers exceeds the values of the corresponding homopolymers. The mechanical properties of PS-b-PBMA diblock copolymers with lamellar structure are compared with bicontinuous and perforated lamellar structures. The investigation of the deformation mechanisms has shown that the craze structure and craze growth are strongly influenced by the microphase separated structures. The enhancement of mechanical properties of PS-b-PBMA diblock copolymers is discussed with respect to a possible correlation between phase behavior, morphology, deformation mechanisms and interface formation. (C) 1998 John Wiley & Sons, Ltd.
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页码：727 / 733
页数：7
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