Investigations on stretched block copolymers of poly(butylene terephthalate) and poly(tetramethylene oxide)

被引：0

作者：

Schmidt, A ^{[1
]}

Alves, C ^{[1
]}

Soliman, M ^{[1
]}

机构：

[1] DSM Res BV, PCM, MP, NL-6160 MD Geleen, Netherlands

来源：

ANTEC 2000: SOCIETY OF PLASTICS ENGINEERS TECHNICAL PAPERS, CONFERENCE PROCEEDINGS, VOLS I-III | 2000年

关键词：

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The changes in phase structure under uniaxial deformation of block copolymers of Poly(butylene terephthalate) (PBT) and Poly(tetramethylene oxide) (PTMO) have been investigated using C-13 solid state NMR spectroscopy and infrared spectroscopy on in-situ stretched samples. The study was focused on the strain-induced crystallization of the PTMO. It became obvious that a minimum stress level in the material is necessary for the strain-induced PTMO crystals to form and to be stable at room temperature. The amount of crystalline PTMO is dependent on the stress level and on the temperature. We also found, that the PTMO crystallization is favored by a large PTMO block length and a large PTMO content.

引用

页码：3288 / 3291

页数：4