Peculiar dynamics and elastic properties of hybrid semi-interpenetrating polymer network-3-D diamond nanocomposites

被引：26

作者：

Bershtein, Vladimir ^{[1
]}

Karabanova, Lyudmyla ^{[2
]}

Sukhanova, Tatiana ^{[3
]}

Yakushev, Pavel ^{[1
]}

Eigorova, Larisa ^{[1
]}

Lutsyk, Elena ^{[2
]}

Svyatyna, Anna ^{[2
]}

Vylegzhanina, Milana ^{[3
]}

机构：

[1] Russian Acad Sci, Ioffe Physicotech Inst, St Petersburg 194021, Russia

[2] Natl Acad Sci Ukraine, Inst Macromol Chem, UA-02660 Kiev, Ukraine

[3] Russian Acad Sci, Inst Macromol Cpds, St Petersburg 199004, Russia

来源：

POLYMER | 2008年 / 49卷 / 04期

关键词：

interpenetrating polymer networks; diamond nanocomposites; dynamics;

D O I：

10.1016/j.polymer.2008.01.002

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polyurethane-poly(2-hydroxyethyl methacrylate)-3-D nanodiamond (PU-PHEMA-ND) composites were studied using combined CRS/DSC/AFM approach. The peculiar behavior and the pronounced heterogeneity of their glass transition dynamics were revealed. Two opposite tendencies for changing dynamics by 3-D NDs, with prevailing sharp suppression of motions, and three-fold increasing elastic properties were shown. Maximal effects were found at minimal ND content of 0.25 wt%. This was associated, besides the improved dispersion/spatial distribution of NDs, with formation of thoroughly cross-linked nanocomposite network, due to the double hybridization resulting in a low theological percolation threshold and the synergistic effect in dynamics. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：836 / 842

页数：7

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