Structure and Viscoelastic Properties of Poly(Ether-Block-Amide) Thermoplastic Elastomers with No Ester Linkages

被引：6
|
作者：
Maeda, Shuichi [1 ]
Okushita, Hiroshi [2 ]
机构：
[1] Yamaguchi Univ, Org Res Initiat, Adv Sci & Innovat Res Ctr, 2-16-1,Tokiwadai, Ube, Yamaguchi 7558611, Japan
[2] Kanazawa Inst Technol, Acad Fdn Programs, Pract Engn Educ Program, 7-1 Ohgigaoka, Nonoichi, Ishikawa 9218501, Japan
来源：
NIHON REOROJI GAKKAISHI | 2019年 / 47卷 / 03期
关键词：
Poly(ether-block-amide) thermoplastic elastomer; Viscoelastic properties; Structure in solid state; Glass transition temperature; Structure in molten state; MORPHOLOGY; BEHAVIOR;
D O I：
10.1678/rheology.47.119
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
We investigated the structure and viscoelastic properties of a series of poly(ether-block-amide) thermoplastic elastomers consisting of hard polyamide segments and soft polyether segments with no ester linkages. All thermoplastic elastomers used in this study exhibited heterogenous morphologies with crystalline lamella in the solid state. The heterogeneities and solubilities in the amorphous regions of the elastomers depended on the sample composition. We did not observe a clear, slow relaxation mechanism characteristic of phase-separated liquids for the dynamic moduli of samples in the molten state. This result shows that the melted samples had a homogeneous structure due to the good miscibility between the poly amide and polyether segments.
引用
收藏
页码：119 / 122
页数：4
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