Dynamic mechanical studies of polyurethane-polyurethane semi-interpenetrating polymer networks filled with γ-Fe2O3

被引：7

作者：

Brovko, OO ^{[1
]}

Sergeeva, LM ^{[1
]}

Kuznetsova, VP ^{[1
]}

Lemeshko, VN ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Macromol Chem, UA-253160 Kyiv 160, Ukraine

来源：

EUROPEAN POLYMER JOURNAL | 1999年 / 35卷 / 11期

关键词：

D O I：

10.1016/S0014-3057(98)00285-7

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In the present article the synthesis and morphology of filled two-component semi-interpenetrating polymer networks (semi-IPNs) from crosslinked and linear polyurethane have been studied. A comparison has been made of polyblends, filled and unfilled semi-IPNs, and related homopolymers by examining their mechanical spectra in an investigation of the influence of active dispersed filler on the semi-IPNs phase structure. The introduction of gamma-Fe2O3 resulted in the incompatibility between the polymers and caused the phase segregation of semi-IPN components. The observed dynamic glass transition temperatures (T(g)s) of the two initial homopolymers substantiate our hypothesis of phase segregation. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：2045 / 2050

页数：6

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