Thermal and mechanical properties of polymethyl mathacrylate reinforced by polyhedral oligomeric silsesquioxane

被引：0
|
作者：
Yang, Benghong [1 ]
Li, Meng [1 ]
Song, Bangping [1 ]
Wu, Yun [1 ]
机构：
[1] Hefei Univ, Dept Chem & Mat Engn, Hefei 230022, Peoples R China
来源：
E-POLYMERS | 2011年
关键词：
POLY(METHYL METHACRYLATE) NANOCOMPOSITES; T-G IMPROVEMENT; HYBRID NANOCOMPOSITES; POSS NANOCOMPOSITES;
D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A series of Inorganic/organic nanocomposites were prepared by blending cage-like carboxyl-bearing polyhedral oligomeric silsesquioxane (carboxyl-POSS) with polymethyl mathacrylate (PMMA) in THF solvent. FTIR and (29)Si-NMR were employed to characterize the structures of the nanocomposites. SEM images showed that the as-prepared films were smooth and no aggregation of carboxyl-POSS was observed. TGA and DSC results showed that the incorporation of small amount of nanosize carboxyl-POSS enhanced the thermal stability of PMMA. When 1.0 wt% of carboxyl-POSS was incorporated into PMMA matrix, the T(g) and T(d) increased by 16.9 degrees C and 21.0 degrees C, respectively. However, higher POSS contents (> 1.0 wt%) would deteriorate the thermal and mechanical properties of the nanocomposites.
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页数：8
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