Creation of Nano-matrix dispersed polymeric materials

纳米基质分散聚合物材料的制备

基本信息

批准号：
17550186
负责人：
KAWAHARA Seiichi
金额：
$ 2.37万
依托单位：
Nagaoka University of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2006
项目状态：
已结题

项目摘要

Nano-matrix structure is a novel structure of polymer composite, which consists of matrix of minor functional polymer and dispersoid of major component. Since the nano-matrix structure may be formed by pinning a unique phase separated structure in non-equilibrium state, it is anticipated that the structure may achieve not only outstanding properties of the major component but also functional properties of the minor component. This may be distinguished from an ordinary island-matrix structure formed for polymer blend, whose properties are attributed to the major component as a matrix. Thus, when we form nano-matrix structure for natural rubber, we may improve the properties of natural rubber without reducing the outstanding mechanical properties.In the present work, an attempt to prepare nano-matrix-dispersed polymer from rubbers was performed with styrene or acrylonitrile as a monomer. Functional properties of nano-matrix-dispersed natural rubber were investigated in relation to morphology of the rubber. The nano-matrix-dispersed natural rubber was prepared by graft-copolymerization of styrene or acrylonitrile onto deproteinized natural rubber in latex stage. The rubber particle of about 0.5 μm in diameter was dispersed in polystyrene or polyacrylonitrile matrix of about 15 nm in thickness, as confirmed by transmission electron microscopy. Mechanical properties and oil resistance for the resulting nano-matrix-dispersed natural rubber was improved because of the formation of nano-matrix structure.

纳米矩阵结构是一种新型聚合物复合材料的结构，该结构由次要功能聚合物的基质和主要成分的分散体组成。由于可以通过在非平衡状态下固定唯一的相分离结构来形成纳米矩阵结构，因此预计该结构不仅可以实现主要成分的出色特性，而且还可以实现次要组件的功能性能。这可以与为聚合物混合物形成的普通岛 - 矩阵结构区别开来，该结构的性质归因于矩阵的主要成分。因此，当我们形成天然橡胶的纳米矩阵结构时，我们可能会改善自然橡胶的特性而不会降低出色的机械性能。在当前的工作中，试图用苯乙烯或丙烯酸酯或丙烯酸酯作为单位素来制备橡胶中的纳米 - 摩托蛋白分散聚合物。研究了与橡胶形态有关的纳米矩阵分散天然橡胶的功能特性。纳米 - 矩阵分散的天然橡胶是通过在乳胶阶段将苯乙烯或丙烯酸二硝烯的晶粒聚合到脱发的天然橡胶上来制备的。直径约0.5μm的橡胶颗粒分散在厚度约15 nm的聚苯乙烯基质中，如传输电子显微镜所证实。由于纳米矩阵结构的形成，改善了所得纳米矩阵分散的天然橡胶的机械性能和油性。