Preparation and characterization of thermosensitive poly(NIPAM-co-MAH-β-CD)/(TiO_2-MWCNTs) composites by UV light photoinitiating method  

作　　者：Hui Long Wang Li Pang Wen Feng Jiang Chao Yang 

机构地区：[1]Department of Chemistry,Dalian University of Technology,China Dalian 116023 [2]PetroChina Dalian Lubricating Oil R&D Institute,China Dalian 116032

出　　处：《Chinese Chemical Letters》2012年第9期1071-1074,共4页中国化学快报（英文版）

基　　金：the financial support provided by the National Natural Science Foundation of China (No.20977013)

摘　　要：In this report, a novel thermosensitive poly（N-isopropylacrylamide-co-maleic anhydride-β-cyclodextrin）/（TiO2-multi-wal,led carbon nanotubes） （poly（NIPAM-co-MAH-β-CD）/（TiO2-MWCNTs）） composite was synthesized by UV light photoinitiating method. The results indicated that MAH modifiedβ-CD （MAH-β-CD） could polymerize to NIPAM by UV light irradiation in the presence of TiO2-MWCNTs composite nanoparticles. The characteristic results confirmed that the TiO2-MWCNTs composite nanoparticles were embedded evenly within the thermally responsive copolymer of NIPAM and MAH-β-CD. The effects of irradiation time and TiO2-MWCNTs concentration on the yield of the composites were investigated by keeping NIPAM to MAH-β- CD mass ratio constant. The optimal polymerization reaction conditions were a TiO2-MWCNTs concentration of 10 wt.% under UV light for the illumination of 3 h.In this report, a novel thermosensitive poly（N-isopropylacrylamide-co-maleic anhydride-β-cyclodextrin）/（TiO2-multi-wal,led carbon nanotubes） （poly（NIPAM-co-MAH-β-CD）/（TiO2-MWCNTs）） composite was synthesized by UV light photoinitiating method. The results indicated that MAH modifiedβ-CD （MAH-β-CD） could polymerize to NIPAM by UV light irradiation in the presence of TiO2-MWCNTs composite nanoparticles. The characteristic results confirmed that the TiO2-MWCNTs composite nanoparticles were embedded evenly within the thermally responsive copolymer of NIPAM and MAH-β-CD. The effects of irradiation time and TiO2-MWCNTs concentration on the yield of the composites were investigated by keeping NIPAM to MAH-β- CD mass ratio constant. The optimal polymerization reaction conditions were a TiO2-MWCNTs concentration of 10 wt.% under UV light for the illumination of 3 h.

关 键 词：Polymeric composite THERMOSENSITIVE Titania nanoparticles UV light 

分 类 号：O633.22[理学—高分子化学] TB383[理学—化学]