A novel well-defined amphiphilic diblock copolymer containing perfluorocyclobutyl aryl ether-based hydrophobic segment

作者：Yang Dong; Tong Liang; Li Yongjun; Hu Jianhua^*; Zhang Sen; Huang Xiaoyu

来源：Polymer, 2010, 51(8): 1752-1760.

DOI：10.1016/j.polymer.2010.02.036

• ATRP
• Block copolymers
• Perfluorocyclobutyl aryl ether

A series of well-defined binary hydrophilic-fluorophilic diblock copolymers were synthesized by successive atom transfer radical polymerization (ATRP) of methoxylmethyl acrylate (MOMA) and 4-(4';-p-tolyloxyperfluorocyclobutoxy)benzyl methacrylate (TPFCBBMA) followed by the acidic selective hydrolysis of the hydrophobic poly(methoxymethyl acrylate) (PMOMA) segment into the hydrophilic poly (acrylic acid) (PAA) segment. ATRP of MOMA was initiated by 2-MBP at 50 degrees C in bulk to give two different PMOMA homopolymers with narrow molecular weight distributions (M(w)/M(n) <= 1.15). PMOMA-b-PTPFCBBMA well-defined diblock copolymers were synthesized by ATRP of TPFCBBMA at 90 degrees C in anisole using Br-end-functionalized PMOMA homopolymer as macroinitiator and CuBr/PMDETA as catalytic system. The final PAA-b-PTPFCBBMA amphiphilic diblock copolymers were obtained via the selective hydrolysis of PMOMA block in dilute HCl without affecting PTPFCBBMA block. The critical micelle concentrations (cmc) of PAA-b-PTPFCBBMA amphiphilic copolymers in aqueous media were determined by fluorescence spectroscopy using pyrene as probe and these diblock copolymers showed different micellar morphologies with the changing of the composition.

• 出版日期2010-4-6
• 单位复旦大学; 中国科学院