Williamson法合成两亲性聚醚砜酮-聚乙二醇接枝共聚物  

AMPHIPHILIC PPESK-g-PEG GRAFT COPOLYMERS SYNTHESIZED via WILLIAMSON METHOD

作　　者：朱利平[1] 朱宝库[1] 冯勇祥[1] 徐又一[1] 

机构地区：[1]浙江大学材料与化学工程学院高分子科学研究所,杭州310027

出　　处：《高分子学报》2007年第3期301-304,共4页Acta Polymerica Sinica

基　　金：国家"973"计划(项目号2003CB615705)资助项目

摘　　要：Amphiphilic graft copolymers having poly（phthalazinone ether sulfone ketone）（PPESK） backbones and poly（ethylene glycol） side chains were synthesized through a modified Williamson ether method.Initially,chloromethylated PPESK（CMPPESK） was prepared using chloromethylether as chloromethylation agent.Then,PPESK-g-PEGs were synthesized via the coupling of CMPPESK with alkoxides formed from PEG mono methyl ether（PEG-OH） and sodium hydride.Two PEG-OHs with the average molecular weight of 350 g/mol and 750 g/mol,respectively were used as the grafting reactants.The grafting of PEG-OHs onto PPESK backbones was confirmed by FT-IR,1H-NMR and solid13C CP-MAS NMR.The grafting degrees of PEG-OH were calculated from1H-NMR analysis,and the obtained results were approximately consistent with those from TGA analysis.The resultant PPESK-g-PEG copolymers were hydrophilic,but water insoluble,rendering them potential candidates as surface modifying additive for PPESK porous membranes.Amphiphilic graft copolymers having poly（phthalazinone ether sulfone ketone） （PPESK） backbones and poly （ethylene glycol ） side chains were synthesized through a modified Williamson ether method. Initially, chloromethylated PPESK （CMPPESK） was prepared using chloromethylether as chloromethylation agent. Then, PPESK-g-PEGs were synthesized via the coupling of CMPPESK with alkoxides formed from PEG mono methyl ether （PEG-OH） and sodium hydride. Two PEG-OHs with the average molecular weight of 350 g/mol and 750 g/mol, respectively were used as the grafting reactants. The grafting of PEG-OHs onto PPESK backbones was confirmed by FT-IR,^1H-NMR and solid ^13C CP-MAS NMR. The grafting degrees of PEG-OH were calculated from ^1H-NMR analysis, and the obtained results were approximately consistent with those from TGA analysis. The resultant PPESK- g-PEG copolymers were hydrophilic, but water insoluble, rendering them potential candidates as surface modifying additive for PPESK porous membranes.

关 键 词：两亲性 聚醚砜酮 接枝共聚物 Williamson合成法 

分 类 号：TQ326[化学工程—合成树脂塑料工业]