Open AccessPoly( N ‐acylethylenimine) copolymers containing pendant pentamethyldisiloxanyl groups. I. Synthesis
Author(s) -
Cai Gangfeng,
Litt Morton H.
Publication year - 1992
Publication title -
journal of polymer science part a: polymer chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.768
H-Index - 152
eISSN - 1099-0518
pISSN - 0887-624X
DOI - 10.1002/pola.1992.080300417
Subject(s) - copolymer , dispersity , polymer chemistry , monomer , polymerization , degree of polymerization , chain transfer , molar mass distribution , oxazoline , materials science , chemistry , polymer , radical polymerization , organic chemistry , catalysis
10‐(Pentamethyl disiloxanyl) decyl oxazoline ( Si ) was synthesized. It was copolymerized with either undecyl ( U ) or nonyl ( N ) oxazolines using methyl 4‐nitrobenzenesulfonate as initiator. Two series of random poly( N ‐acylethylenimine) copolymers, U/Si and N/Si , were synthesized over the whole composition range of Si monomer with a total degree of polymerization of about 100. Narrow molecular weight distributions were obtained. At a monomer to initator ratio of about 1060, the final degree of polymerization was 374 with a polydispersity index of 1.93. This shows the effect of chain transfer in this system.