Nanocomposites from layered silicates:: Graft polymerization with intercalated ammonium peroxides

被引：16

作者：

Albrecht, M ^{[1
]}

Ehrler, S ^{[1
]}

Mühlebach, A ^{[1
]}

机构：

[1] Ciba Specialty Chem Inc, R&D Coating Effects Segment, CH-4002 Basel, Switzerland

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2003年 / 24卷 / 5-6期

关键词：

cationic initiators; clay; exfoliation; nanocomposites; radical polymerization;

D O I：

10.1002/marc.200390065

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Nanocomposites were prepared by butyl acrylate graft polymerization from montmorillonite-type layered silicates. Successful polymer grafting required novel dialkyl peroxides comprising two cationic ammonium groups, which were intercalated in the layered silicate by cation exchange. Thermal cleavage of the peroxide functionality in the presence of butyl acrylate as monomer initiated polymerization and hence exfoliation of the layers. Detailed examination of this process shows that the polymerization cannot be controlled by external nitroxides.

引用

页码：382 / 387

页数：6

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