摘要
用γ-氨丙基三乙氧基硅烷 (APTEOS)为交联剂 ,以甲基丙烯酸甲酯 (MMA)、顺丁烯二酸酐(MAH)和四乙氧基硅 (TEOS)为原料 ,通过自由基溶液聚合和溶胶 -凝胶过程制得了两相间以共价键结合的透明 MMA- MAH共聚物 / Si O2 有机 -无机杂化材料。通过 FT- IR分析证实了材料有机相与无机相之间是以共价键结合的。随着无机相含量的增加 ,材料热性能呈明显上升趋势。复合材料可见光透过率在 75 %左右 ,当 Si O2 含量超过一定值后 ,可见光透过率逐渐降低。研究结果初步表明 。
The copolymer of methyl-methacrylate ( MMA ) and maleic anhydride (MAH) was initiated by benzoyl peroxide (BPO) in aqueous solution. MMA-MAH copolymer/silicon dioxide organic-inorganic hybrid materials have been successfully prepared from MMA-MAH copolymer and tetraethoxy-silicane (TEOS) in the presence of a coupling agent γ-aminopropyl triethoxysilane (APTEOS) by radical solution polymerization and in situ sol-gel process. The covalent bonds between organic and inorganic phases was confirmed by the FT-IR of the hybrid materials. The thermogravity analysis showed that the heat stabilities of composites increased remarkably with the increasing of SiO 2 content. The light transmittances of resultant hybrids were 75%, near to the light transmittance 80% of pure SiO 2. When SiO 2 content reached some fixed value, the light transmittance of composites reduced. It is shown that MMA-MAH copolymer and silicon dioxide exist at nano scale in the composites.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2003年第4期162-165,共4页
Polymer Materials Science & Engineering
关键词
甲基丙烯酸甲酯-顺丁烯二酸酐共聚物
SIO2
杂化材料
制备
性能
交联剂
sol-gel
in-situ synthesis
hybrid materials
methyl-methacrylate and maleic anhydride copolymer
tetraethoxy-silicane
γ-aminopropyl triethoxysilane
