Fabrication of polyelectrolyte/amine-modified silica composite thin film by coupling of layer-by-layer assembly and sol-gel techniques

被引：2

作者：

Liu, Huanhuan ^{[1
,2
]}

Wu, Ronglan ^{[1
,2
]}

Du, Juan ^{[1
,2
]}

Nie, Xudong ^{[1
,2
]}

Xu, Shimei ^{[1
,2
]}

Wang, Jide ^{[1
,2
]}

机构：

[1] Xinjiang Univ, Key Lab Oil & Gas Fine Chem, Minist Educ, Urumqi 830046, Xinjiang, Peoples R China

[2] Xinjiang Univ, Coll Chem & Chem Engn, Xinjiang Uyghur Autonomous Reg, Urumqi 830046, Xinjiang, Peoples R China

来源：

JOURNAL OF POLYMER RESEARCH | 2014年 / 21卷 / 02期

基金：

中国国家自然科学基金;

关键词：

layer-by-layer assembly film; sol-gel; organosilane; exponential growth; EXPONENTIAL-GROWTH; ORGANIZATION; SURFACES;

D O I：

10.1007/s10965-013-0328-9

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

This study focuses on a facile approach to create polyelectrolyte/SiO2 composite thin films. The film was fabricated by alternate deposition of N-[3-(trimethoxysilyl) propyl] diethylenetriamine (C10H27N3O3Si, TPDT in short) and poly(acrylic acid) (PAA). The layer-by-layer assembly process was accompanied by sol-gel transition of TPDT. The resultant films were investigated in detail by Fourier transform infrared spectroscopy (FT-IR), UV-Visible spectroscopy (UV-vis), ellipsometry, thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results indicated that the films grew exponentially with increasing bilayer number. During deposition, hydrolysis and condensation of silanol groups in the film resulted in the formation of a Si-O-Si network embedded into the framework of the polymer. The obtained free-standing films had high transparency even with a high content of silica, and showed good mechanical properties with a tensile strength of 32.8 MPa at break.

引用

页数：6