Preparation of clay mineral polymer nanocomposites by adsorption in solution

被引：18

作者：

Kredatusova, Jana ^{[1
]}

Brozek, Jiri ^{[1
]}

机构：

[1] Prague Inst Chem Technol, Dept Polymers, CR-16628 Prague 6, Czech Republic

来源：

APPLIED CLAY SCIENCE | 2012年 / 62-63卷

关键词：

Cloisite 25A and 30B; Exfoliation; Polyesteramides; Organocation-solvent interaction; Polymer-solvent interaction; LAYERED SILICATE NANOCOMPOSITES; EPSILON-CAPROLACTAM; THERMAL/MECHANICAL PROPERTIES; ANIONIC-POLYMERIZATION; SEQUENCE DISTRIBUTION; POLYETHYLENE-GLYCOL; IN-SITU; MONTMORILLONITE; POLYESTERAMIDES; CRYSTALLIZATION;

D O I：

10.1016/j.clay.2012.04.009

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Novel clay mineral polymer nanocomposites (CPN) were prepared by direct addition of a polyesteramide (PEA) solution to organomontmorillonites (OMt). PEA matrices were obtained by the anionic copolymerization of epsilon-caprolactam (CIA) and epsilon-caprolactone (CLO) containing 20-100 mol% of CLO units. The matrices were used to test the exfoliation of two OMt (Cloisite 30B and Cloisite 25A). The extent of exfoliation was dependent on the mutual interaction of all three components (polymer, solvent and OMt). The degree of OMt-solvent interaction was assessed from the swelling factor and basal distance, the latter being measured by the WAXS method. The polymer-solvent interaction was determined from the limiting viscosity numbers measured for each solvent used. Several of the copolymer-solvent-OMt combinations resulted in nanocomposites with a fully- or partially-exfoliated structure. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：94 / 100

页数：7

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