Morphological study of melt-crystallized poly(ethylene terephthalate). A. Comparison of transmission electron microscopy and small-angle X-ray scattering of bulk samples

被引：35

作者：

Haubruge, HG ^{[1
]}

Jonas, AM ^{[1
]}

Legras, R ^{[1
]}

机构：

[1] Catholic Univ Louvain, Lab Phys & Chim Hauts Polymeres, B-1348 Louvain, Belgium

来源：

MACROMOLECULES | 2004年 / 37卷 / 01期

关键词：

D O I：

10.1021/ma0352678

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Quantitative image analysis of transmission electron micrographs (TEM) of poly(ethylene terephthalate) (PET) thin sections was performed and compared to data obtained by small-angle X-ray scattering (SAXS) on the same samples. Different methods to analyze the TEM images are presented, and the results are compared with different ways to analyze the SAXS patterns. The results from TEM and SAXS correlate well and lift remaining ambiguities on the semicrystalline morphology formed on cooling from the melt, as a function of the isothermal crystallization temperature. A broad monomodal distribution of lamellar thickness was observed, while no large amorphous gaps were detected. The mean lamellar thickness was shown to be smaller than the mean thickness of amorphous regions, which was also characterized by a broad distribution.

引用

页码：126 / 134

页数：9

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