Effect of Mesoporosity on Thermal and Mechanical Properties of Polystyrene/Silica Composites

被引：60
作者：
Ver Meer, Melissa A. [1 ,2 ]
Narasimhan, Balaji [3 ]
Shanks, Brent H. [3 ]
Mallapragada, Surya K. [3 ]
机构：
[1] Schlumberger Lawrence Technol Ctr, Lawrence, KS 66049 USA
[2] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA
[3] Iowa State Univ, Dept Chem & Biol Engn, Ames, IA 50011 USA
来源：
ACS APPLIED MATERIALS & INTERFACES | 2010年 / 2卷 / 01期
关键词：
polymer composites; atom transfer radical polymerization; melt blending; mesoporous silica; colloidal silica; TRANSFER RADICAL POLYMERIZATION; GLASS-TRANSITION TEMPERATURE; HYBRID NANOPARTICLES; METHYL-METHACRYLATE; SILICA PARTICLES; NANOCOMPOSITES; NANOSTRUCTURES; SURFACES; BRUSHES; STYRENE;
D O I：
10.1021/am900540x
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this study, mesoporous or colloidal silica particles were incorporated into polystyrene matrices via melt blending or by styrene polymerization initiated from the particle surface. The relationships between the surface morphology of filler-particles in polymer composites and their thermomechanical properties were investigated. High molecular weight polystyrene-silica hybrids generated by modifying the surfaces of monodisperse colloidal silica, and, templated mesoporous silica nanoparticles. The functionalized silica surfaces were grafted with alkyl halide initiators for atom transfer radical polymerization. Polymerization was conducted without free initiator present. The physical properties of these composites were studied by dynamic mechanical analysis, thermogravimetric analysis, transmission electron microscopy, and scanning electron microscopy. Results indicate that colloidal and mesoporous silica polymer composites generated by atom transfer radical polymerization have similar grafted polymer characteristics, indicating that polymer growth from the surface of the particle does not allow for significant polymer chain growth in the interior of the mesoporous silica particles.
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页码：41 / 47
页数：7
相关论文
共 24 条
[1]   Structured hybrid nanoparticles via surface-initiated ATRP of methyl methacrylate from ordered mesoporous silica [J].
Audouin, Fabrice ;
Blas, Helene ;
Pasetto, Pamela ;
Beaunier, Patricia ;
Boissiere, Cedric ;
Sanchez, Clement ;
Save, Maud ;
Charleux, Bernadette .
MACROMOLECULAR RAPID COMMUNICATIONS, 2008, 29 (11) :914-921
[2]   Intercalation/exfoliation mechanism of hybrid formation in polypropylene/lamellar mesostructured silica nanocomposites [J].
Danumah, C ;
Ray, SS ;
Kaliaguine, S ;
Bousmina, M .
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2006, 6 (02) :523-529
[3]   Novel polymer nanocomposites from templated mesostructured inorganic materials [J].
Danumah, C ;
Bousmina, M ;
Kaliaguine, S .
MACROMOLECULES, 2003, 36 (22) :8208-8209
[4]   Surfactant-assisted synthesis of alumina with hierarchical nanopores [J].
Deng, WH ;
Toepke, MW ;
Shanks, BH .
ADVANCED FUNCTIONAL MATERIALS, 2003, 13 (01) :61-65
[5]   Interface and chain confinement effects on the glass transition temperature of thin polymer films [J].
Forrest, JA ;
DalnokiVeress, K ;
Dutcher, JR .
PHYSICAL REVIEW E, 1997, 56 (05) :5705-5716
[6]   STERIC STABILIZATION OF STOBER SILICA DISPERSIONS USING ORGANOSILANES [J].
FOX, JR ;
KOKOROPOULOS, PC ;
WISEMAN, GH ;
BOWEN, HK .
JOURNAL OF MATERIALS SCIENCE, 1987, 22 (12) :4528-4531
[7]   In situ formation of a novel nanocomposite structure based on MCM-41 and polyethylene [J].
He, J ;
Duan, X ;
Evans, DG ;
Howe, RF .
JOURNAL OF POROUS MATERIALS, 2002, 9 (01) :49-56
[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]   In situ radical transfer addition polymerization of styrene from silica nanoparticles [J].
Liu, P ;
Liu, WM ;
Xue, QJ .
EUROPEAN POLYMER JOURNAL, 2004, 40 (02) :267-271
[10]   Ceramic-reinforced polymers and polymer-modified ceramics [J].
Mark, JE .
POLYMER ENGINEERING AND SCIENCE, 1996, 36 (24) :2905-2920
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