Effect of linear comonomers on the rate of crystallization of copolyesters
摘要：
Small amounts of dimethyl-4,4-biphenyldicarboxylate, 2,7-dimethyl-4,5,9,10-tetrahydropyrenedicarboxylate, and dimethyl-2,7-pyrenedicarboxylate have been copolymerized into poly(ethylene) terephthalate (PET). The thermal transitions of the copolymers have been characterized, and the crystallization rates have been measured isothermally. Avrami analysis indicates that all the copolymers crystallized at a slower rate than that of the PET homopolymer. Addition of perylene to the copolymers containing pyrene enhanced the rate of crystallization, which could be the consequence of stacked arene assemblies serving as templates for crystal formation. 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 2696-2704, 2001
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关键词：
Experimental study Ethylene terephthalate copolymer Carboxylate copolymer Aromatic copolymer Thermal transition Crystallization Kinetic parameter Melt polymerization Ester copolymer Etude expérimentale
DOI：
10.1002/app.1384
被引量：
年份：
2010
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