Influence of a Sorbitol-Based Nucleating Agent Modified with Silsesquioxanes on the Non-Isothermal Crystallization of Isotactic Polypropylene

被引：17
|
作者：
Barczewski, Mateusz [1 ]
Dobrzynska-Mizera, Monika [1 ]
Dudziec, Beata [2 ]
Sterzynski, Tomasz [1 ]
机构：
[1] Poznan Univ Tech, Inst Mat Technol, Polymer Proc Div, PL-61138 Poznan, Poland
[2] Adam Mickiewicz Univ, Dept Organometall Chem, Fac Chem, PL-60780 Poznan, Poland
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2014年 / 131卷 / 08期
关键词：
polyolefins; rheology; crystallization; nanoparticles; nanowires and nanocrystals; nanostructured polymers; MECHANICAL-PROPERTIES; MELTING BEHAVIORS; KINETICS; POSS; MORPHOLOGY; NANOCOMPOSITES; COMPOSITES; GROWTH;
D O I：
10.1002/app.40131
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
This article investigates the effect of modifying the polypropylene (iPP) -phase nucleating agent 1,3:2,4-bis(3,4-dimethylbenzylidene) sorbitol (DMDBS) with tetrasilanolphenyl silsesquioxane (phPOSS). It has been proven that an increasing amount of silsesquioxane leads to differences in the crystallization behavior. What is more, it has been observed that the nucleation effect that results from the addition of sorbitol derivatives is suppressed by phPOSS activity. To understand the influence of phPOSS addition on the crystallization kinetics of PP/DMDBS/phPOSS composites that have been prepared by melt processing in a twin screw extruder, differential scanning calorimetry, rotational rheometry and Fourier transform infrared spectroscopy are performed. (c) 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40131.
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页数：9
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