The rate acceleration in solid-state polycondensation of PET by nanomaterials

被引：18
|
作者：
Yu, HM [1 ]
Han, KQ [1 ]
Yu, MH [1 ]
机构：
[1] Donghua Univ, Coll Mat Sci & Egnn, State Key Lab Chem Fibers & Polymer Mat, Shanghai 200051, Peoples R China
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2004年 / 94卷 / 03期
关键词：
nanomaterials; montmorillonite; PET; solid-state polycondensation;
D O I：
10.1002/app.20888
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 effect of nanomaterials on the solidstate polycondensation (SSP) of PET was investigated using intrinsic viscosity measurement, wide-angle X-ray diffraction, differential scanning calorimetry, and polarizing microscope. The results showed that the montmorillonite nanomaterials could greatly increase the rate of solid-state polycondensation of PET, probably due to the nucleation of montmorillonite nanomaterials for PET crystallization, which resulted in lower crystallinity, more small crystals, and more surfaces of the crystals. The surfaces of microcrystal and richer amorphous regions benefitted the polycondensation reaction of PET and diffusion of volatile by-products, which led to the higher rate of SSP. (C) 2004 Wiley Periodicals, Inc.
引用
收藏
页码：971 / 976
页数：6
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