Preparation and properties investigation of PMMA/silica composites derived from silicic acid

被引：37

作者：

Fu, H. P. ^{[2
]}

Hong, R. Y. ^{[1
,2
,3
]}

Zhang, Y. J. ^{[2
]}

Li, H. Z. ^{[3
]}

Xu, B. ^{[4
]}

Zheng, Y. ^{[5
]}

Wei, D. G. ^{[6
]}

机构：

[1] Soochow Univ, Dept Chem Engn, SIP, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China

[2] Soochow Univ, Key Lab Organ Synth Jiangsu Prov, Suzhou 215123, Peoples R China

[3] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase React, Beijing 100080, Peoples R China

[4] Nanotec Inc, Suzhou 215123, Sip, Peoples R China

[5] Univ New Brunswick, Dept Chem Engn, Fredericton, NB E3B 5A3, Canada

[6] Harvard Univ, Sch Engn & Appl Sci, Ctr Nanoscale Syst, Cambridge, MA 02139 USA

来源：

POLYMERS FOR ADVANCED TECHNOLOGIES | 2009年 / 20卷 / 02期

基金：

中国国家自然科学基金;

关键词：

silica; silicic acid; PMMA; composite; mechanical properties; SOL-GEL METHOD; HYBRID COMPOSITES; NANOCOMPOSITES; NANOPARTICLES; PARTICLES; SIO2;

D O I：

10.1002/pat.1226

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Hybrid materials based on silicic acid and polymethyl methacrylate (PMMA) were prepared by in situ bulk polymerization of a silicic acid sol and MMA mixture. Silicic acid sol was obtained by tetrahydrofuran (THF) extraction of silicic acid from water. Silicic acid was prepared by hydrolysis and condensation of sodium silicate in the presence of 3.6 M HCI. As a comparative study, PMMA composites filled by silica particles, which were derived from calcining the silicic acid gel, were prepared by a comparable in situ polymerization. Each set of PMMA/silica composites was subjected to thermal and mechanical studies. Residual THF in PMMA/silicic acid composites impacted the properties of the polymer composites. With increase in silica content, the PMMA composites filled with silica particles showed improved thermal and mechanical properties, whereas a decrease in thermal stability and mechanical strength was found for PMMA composites filled with silicic acid dissolved in THF. With a better compatibility with polymer matrix, silicic acid sol shows better reinforcement than silica particles in PMMA films prepared via blending of the corresponding THF solutions. Copyright (C) 2008 John Wiley & Sons, Ltd.

引用

页码：84 / 91

页数：8

共 27 条

[1] Thermal oxide growth at chemical vapor deposited SiO2/Si interface during annealing evaluated by difference x-ray reflectivity [J].

Awaji, N ;

Ohkubo, S ;

Nakanishi, T ;

Aoyama, T ;

Sugita, Y ;

Takasaki, K ;

Komiya, S .

APPLIED PHYSICS LETTERS, 1997, 71 (14) :1954-1956

[2] Synthesis and characterization of polyimide silica hybrid composites [J].

Chen, Y ;

Iroh, JO .

CHEMISTRY OF MATERIALS, 1999, 11 (05) :1218-1222

[3] Surface-modified silica nanoparticles for reinforcement of PMMA [J].

Hong, R. Y. ;

Fu, H. P. ;

Zhang, Y. J. ;

Liu, L. ;

Wang, J. ;

Li, H. Z. ;

Zheng, Y. .

JOURNAL OF APPLIED POLYMER SCIENCE, 2007, 105 (04) :2176-2184

[4] Preparation and application of polystyrene-grafted ZnO nanoparticles [J].

Hong, R. Y. ;

Chen, L. L. ;

Li, J. H. ;

Li, H. Z. ;

Zheng, Y. ;

Ding, J. .

POLYMERS FOR ADVANCED TECHNOLOGIES, 2007, 18 (11) :901-909

[5] Experimental study of synthesis of silica nanoparticles by a bench-scale diffusion flame reactor [J].

Jang, HD .

POWDER TECHNOLOGY, 2001, 119 (2-3) :102-108

[6]

*JB T, 61481992 JBT

[7] Effect of amorphous precipitated silica on the properties and structure of poly(p-phenylene sulfide) [J].

Jesionowski, T ;

Bula, K ;

Jurga, J ;

Krysztafkiewicz, A .

COLLOID AND POLYMER SCIENCE, 2001, 279 (10) :983-989

[8] Mesoporous silica-reinforced polymer nanocomposites [J].

Ji, XL ;

Hampsey, JE ;

Hu, QY ;

He, JB ;

Yang, ZZ ;

Lu, YF .

CHEMISTRY OF MATERIALS, 2003, 15 (19) :3656-3662

[9] Preparation and characterization of epoxy composites filled with functionalized nanosilica particles obtained via sol-gel process [J].

Kang, S ;

Hong, SI ;

Choe, CR ;

Park, M ;

Rim, S ;

Kim, J .

POLYMER, 2001, 42 (03) :879-887

[10] Polyimide-silica hybrid coatings:: morphological, mechanical, and thermal investigations [J].

Karatas, S. ;

Kayaman-Apohan, N. ;

Demirer, H. ;

Gungor, A. .

POLYMERS FOR ADVANCED TECHNOLOGIES, 2007, 18 (06) :490-496

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