POLYUREA SYNTHESIS AND PROPERTIES AS A FUNCTION OF HARD-SEGMENT CONTENT

被引：29

作者：

CHEN, ZS ^{[1
]}

YANG, WP ^{[1
]}

MACOSKO, CW ^{[1
]}

机构：

[1] UNIV MINNESOTA,DEPT CHEM ENGN & MAT SCI,MINNEAPOLIS,MN 55455

来源：

RUBBER CHEMISTRY AND TECHNOLOGY | 1988年 / 61卷 / 01期

关键词：

POLYMERS; -; Synthesis;

D O I：

10.5254/1.3536179

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

High-molecular-weight linear polyureas of different hard-segment content are obtained with a two-step solution polymerization. Elimination of water, careful choice of solvent, reactant concentration, and good control of reaction temperature are essential to obtain satisfactory results. The authors have studied the influence of the hard-segment content of the mechanical, dynamic-mechanical, and thermal properties of these solution polymerized amine-terminated polypropylene-oxide-based thermoplastic polyureas. Two-phase morphology is predominant within the range of the hard-segment concentration studied.

引用

页码：86 / 99

页数：14

共 28 条

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