γ射线辐照制备聚甲基丙烯酰亚胺微孔材料及其性能表征  

Fabrication of microporous polymethacrylimide using γ-rays irradiation and characterization of its properties

作　　者：唐建君[1,2] 许云书[2] 熊亮萍[2] 高小铃[2] 徐光亮[1] 

机构地区：[1]西南科技大学材料科学与工程学院,绵阳621010 [2]中国工程物理研究院核物理与化学所,绵阳621900

出　　处：《辐射研究与辐射工艺学报》2011年第6期331-335,共5页Journal of Radiation Research and Radiation Processing

基　　金：中国工程物理研究院发展基金重点项目(2009A0302016);国家自然科学基金项目(11175163)资助

摘　　要：以甲基丙烯酸(MAA)、丙烯腈(AN)、丙烯酰胺(AM)和甲基丙烯酸甲酯(MMA)为单体,用γ射线辐射引发聚合,形成MAA\AN\AM的共聚物和PMMA,然后使用热处理酰亚胺化制备了聚甲基丙烯酰亚胺(PMI),同时PMMA降解形成微孔结构。红外光谱分析表明:在选定温度条件下热处理过程中,相应基团酰亚胺化和PMMA降解成孔同时进行:TG-DSC分析结果表明,所得微孔材料的起始热分解温度达345℃:扫描电镜观察发现,所得产物为闭孔结构的聚甲基丙烯酰亚胺微孔材料,孔径约为100μm。Methylacrylic acid （MAA）, acrylonitrile （AN）, acrylamide （AM） and methyl methacrylate （MMA） were polymerized by μ-rays, and AN/AM/MAA copolymer as well as polymethylmethacrylate （PMMA） were synthesized. Then microporous structure of polymethacrylimide （PMI） was obtained by the degradation of PMMA using heat-treatment. FIIR spectra showed that imide process and PMMA degradation were simultaneous at the selected temperature. TG-DSC analysis showed that the sample began to degrade at 345℃. And SEM photos indicated that microporous PMI with obturator foramen structure was obtained, whose aperture was about 100 μm.

关 键 词：聚甲基丙烯酰亚胺 微孔材料 Γ射线 辐射聚合 

分 类 号：O631.34[理学—高分子化学] TB383[理学—化学]