Anionic polymerization of ε-caprolactam in miniemulsion:: Synthesis and characterization of polyamide-6 nanoparticles

被引：81

作者：

Crespy, D ^{[1
]}

Landfester, K ^{[1
]}

机构：

[1] Univ Ulm, Dept Organ Chem 3, D-89081 Ulm, Germany

来源：

MACROMOLECULES | 2005年 / 38卷 / 16期

关键词：

D O I：

10.1021/ma050616e

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

For the first time, polyamide-6 nanoparticles were successfully obtained by anionic polymerization of E-caprolactam in heterophase using the miniemulsion process. It is shown that stability of the monomeric miniemulsion was obtained by dispersing either molten epsilon-caprolactam or epsilon-caprolactam dissolved in a polar solvent. During polymerization only the latter miniemulsion stays stable, and nanometer aggregates of polyamide-6 were formed by precipitation polymerization inside the miniemulsion. The syntheses were carried out with different continuous phases, amounts of surfactant, an initiator, and the monomer. The success of the polymerization and the influence of these parameters on the particle size, morphology, and the molecular weight of polyamide-6 were studied using DLS, viscosimetry, TEM, and FT-IR spectroscopy.

引用

页码：6882 / 6887

页数：6

共 34 条

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