Premium
Influence of a sorbitol‐based nucleating agent modified with silsesquioxanes on the non‐isothermal crystallization of isotactic polypropylene
Author(s) -
Barczewski Mateusz,
DobrzyńskaMizera Monika,
Dudziec Beata,
Sterzyński Tomasz
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.40131
Subject(s) - differential scanning calorimetry , materials science , nucleation , crystallization , rheometry , polypropylene , sorbitol , polymer chemistry , silsesquioxane , tacticity , chemical engineering , fourier transform infrared spectroscopy , isothermal process , polyol , composite material , polymer , organic chemistry , chemistry , polymerization , thermodynamics , polyurethane , physics , engineering
This article investigates the effect of modifying the polypropylene (iPP) α‐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. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40131.