Effect of morphology on shear viscosity for binary blends of polycarbonate and polystyrene

被引：15

作者：

Tanaka, Yuki ^{[1
]}

Sako, Takumi ^{[1
]}

Hiraoka, Tatsuhiro ^{[2
]}

Yamaguchi, Misaki ^{[2
]}

Yamaguchi, Masayuki ^{[1
]}

机构：

[1] Japan Adv Inst Sci & Technol, Sch Mat Sci, 1-1 Asahidai, Nomi, Ishikawa 9231292, Japan

[2] Mitsubishi Chem Corp, Hiroshima R&D Ctr, 20-1 Miyuki Cho, Otake, Hiroshima 7390693, Japan

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2020年 / 137卷 / 46期

基金：

日本学术振兴会;

关键词：

morphology; rheology; viscosity and viscoelasticity; extrusion; polycarbonates; INCOMPATIBLE POLYMER BLENDS; RHEOLOGICAL PROPERTIES; POLY(METHYL METHACRYLATE); ELONGATIONAL VISCOSITY; VISCOELASTIC BEHAVIOR; OPTICAL-PROPERTIES; POLY(LACTIC ACID); POLYPROPYLENE; MISCIBILITY; COMPOSITES;

D O I：

10.1002/app.49516

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 structure and rheological properties of binary blends of polycarbonate (PC) and polystyrene (PS) were investigated using various PS samples with different molecular weights, namely PS1k (M-w= 1,000), PS53k (M-w= 53,000), and PS240k (M-w= 240,000). The blends with PS53k and PS240k show phase-separated structures, whereas the blend with PS1k is miscible. The shear viscosity decreases greatly on addition of PS53k and PS240k, especially at high shear rates, which would be a great advantage at processing operations. Because the nonlinear response occurs in the small strain region for multilayered films of PC and PS240k, the origin of the significant viscosity drop for the phase-separated system is interfacial slippage at the phase boundary.

引用

页数：9

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