Nonisothermal Crystallization Kinetics of Polypropylene/Polypropylene-g-Polystyrene/Polystyrene Blends

被引：5

作者：

Li, Jinge ^{[1
,2
]}

Li, Huayi ^{[1
]}

Ke, Yucai ^{[1
]}

Li, Qian ^{[1
]}

Zhang, Liaoyun ^{[2
]}

Hu, Youliang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, Beijing Natl Lab Mol Sci,Key Lab Engn Plast, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2011年 / 119卷 / 03期

基金：

美国国家科学基金会;

关键词：

blends; crystallization; graft copolymers; poly(propylene)(PP); polystyrene; NON-ISOTHERMAL CRYSTALLIZATION; REACTOR GRANULE TECHNOLOGY; POLYSTYRENE BLENDS; GRAFT COPOLYMER; POLYPROPYLENE; MORPHOLOGY; BEHAVIOR; PROPYLENE; STYRENE; COMPATIBILIZATION;

D O I：

10.1002/app.32861

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 nonisothermal crystallization kinetics of polypropylene (PP), PP/polystyrene (PS), and PP/PP-g-PS/PS blends were investigated with differential scanning calorimetry at different cooling rates. The Jeziorny modified Avrami equation, Ozawa method, and Mo method were used to describe the crystallization kinetics for all of the samples. The kinetics parameters, including the half-time of crystallization, the peak crystallization temperature, the Avrami exponent, the kinetic crystallization rate constant, the crystallization activation energy, and the F(T) and a parameters were determined. All of the results clearly indicate that the PP-g-PS copolymer accelerated the crystallization rate of the PP component in the PP/PP-gPS/PS blends. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 119: 1721-1731, 2011

引用

页码：1721 / 1731

页数：11

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