Journal of Polymer Science Part A: Polymer Chemistry, Vol.41, No.9, 1341-1341, 2003
Bidirectional propagation of chain-growth polycondensation: Its application to poly(ethylene glycol)-aromatic polyamide-poly(ethylene glycol) triblock copolymer with low polydispersity
Polycondensation of phenyl 4-(octylamino)benzoate (1) in the presence of diphenyl terephthalate (2) as a difunctional initiator proceeded in a bidirectional propagation from 2. This polycondensation was applied to the synthesis of poly(ethylene glycol) (PEG)-aromatic polyamide-PEG triblock copolymer (4) as a new, well-defined coil-rod-coil triblock copolymer.
Keywords:chain-growth polycondensation;bidirectional propagation;polyamide;block copolymers;molecular weight distribution