FENG Libang, FANG Hongxia, ZHOU Shuxue, GU Guangxin, WU Limin. SYNTHESIS OF PDMS-CONTAINING MACROAZOINITIATOR BY ONE STEP METHOD AND ITS APPLICATION IN PREPARATION OF BLOCK COPOLYMERS[J]. Acta Polymerica Sinica, 2007,(5):472-477.
FENG Libang, FANG Hongxia, ZHOU Shuxue, GU Guangxin, WU Limin. SYNTHESIS OF PDMS-CONTAINING MACROAZOINITIATOR BY ONE STEP METHOD AND ITS APPLICATION IN PREPARATION OF BLOCK COPOLYMERS[J]. Acta Polymerica Sinica, 2007,(5):472-477.DOI:
A one step metohd approach for synthesis of polydimethylsiloxane (PDMS)-containing macroazoinitiator (MAI) was developed by direct polycondensation of hydroxyalkyl-terminated PDMS with 4
4′-azobis-4-cyanopentanoic acid (ACPA) under mild conditions by the use of dicyclohexylcarbodiimide (DCC) as the activating agent and 4-(dimethylamino) pyridinium-p-toluenesulfonate (DPTS) as the catalyst.The resulted MAI was then used as an initiator for polymerization of poly(ethylene glycol) methyl ether methacrylate (PEGMA) macro-monomers
and amphiphilic PDMS-PEG block copolymers were successfully synthesized.Results from the characterization of block copolymers showed that the resulted MAI had very high initiation efficiency and the block copolymers had microphase-separated structure.