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Ternary composites by an in situ hydrolytic polymerization process†
RSC Advances ( IF 3.9 ) Pub Date : 2018-04-18 00:00:00 , DOI: 10.1039/c8ra02402b
K Nagel 1 , L Kaßner 1 , A Seifert 1 , R-E Grützner 2 , G Cox 2 , S Spange 1
Affiliation  

Polyamide 6/modified silica composite materials have been prepared by a coupled polymerization procedure. For this purpose, the three-component-system we presented in a previous publication, consisting of ε-aminocaproic acid (ε-ACA), ε-caprolactam (ε-CL), and 1,1′,1′′,1′′′-silanetetrayltetrakis-(azepan-2-one) (Si(ε-CL)4), has been combined with other silicon monomers with one or two methyl groups (MeSi(ε-CL)3 and Me2Si(ε-CL)2). The simultaneous polymerization of ε-CL and silicon monomers leads to the in situ formation of silica/polysiloxane particles and the surrounding polyamide 6 matrix in one step. Moreover, 3-aminopropyltriethoxysilane has been added to the three-component-system to achieve covalent bonding between organic and inorganic phases and to inhibit agglomeration of the silica particles. Chemical structures and morphologies of the composites have been investigated by solid-state NMR and FTIR spectroscopy as well as electron microscopy and SEC measurements. Structural effects on thermal properties have been studied by DSC and TGA measurements.

中文翻译:

三元复合材料原位水解聚合工艺†

聚酰胺6/改性二氧化硅复合材料已通过偶联聚合程序制备。为此,我们在之前的出版物中介绍了三组分系统,包括 ε-氨基己酸 (ε-ACA)、ε-己内酰胺 (ε-CL) 和 1,1',1'',1' ''-硅烷四基四基-(azepan-2-one) (Si(ε-CL) 4 ),已与具有一个或两个甲基的其他硅单体(MeSi(ε-CL) 3和 Me 2 Si(ε- CL) 2 )。ε-CL 和硅单体的同时聚合导致原位一步形成二氧化硅/聚硅氧烷颗粒和周围的聚酰胺6基质。此外,3-氨基丙基三乙氧基硅烷已添加到三组分体系中,以实现有机相和无机相之间的共价键合,并抑制二氧化硅颗粒的团聚。复合材料的化学结构和形态已通过固态 NMR 和 FTIR 光谱以及电子显微镜和 SEC 测量进行了研究。通过 DSC 和 TGA 测量研究了结构对热性能的影响。
更新日期:2018-04-18
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