Block and graft copolymers based on cationic ring-opening polymerizations

1992 ◽  
Vol 64 (1) ◽  
pp. 113-120 ◽  
Author(s):  
Eric J. Goethals ◽  
Veska Toncheva ◽  
Fried'l Hosteaux ◽  
Saskia Walraedt ◽  
Ronny de Clercq
2020 ◽  
Vol 11 (3) ◽  
pp. 682-686 ◽  
Author(s):  
Chunyang Bao ◽  
Xiaoling Xu ◽  
Jing Chen ◽  
Qiang Zhang

Lipase–poly(HEAA) conjugates act as initiators and catalysts simultaneously for the eROP of ε-CL, forming biodegradable conjugates with amphiphilic graft copolymers.


2020 ◽  
Vol 11 (42) ◽  
pp. 6847-6852
Author(s):  
Jungyeon Kim ◽  
Christopher Waldron ◽  
Beatrice Cattoz ◽  
C. Remzi Becer

An inimer-like structure that consists of a 2-oxazoline ring for cationic ring opening polymerisation and a typical alpha-bromo ester initiator for Cu-RDRP has been synthesised using ε-Caprolactone as the starting material.


2013 ◽  
Vol 4 (13) ◽  
pp. 3705 ◽  
Author(s):  
Fanny Coumes ◽  
Vincent Darcos ◽  
Dominique Domurado ◽  
Suming Li ◽  
Jean Coudane

2010 ◽  
Vol 459 ◽  
pp. 51-56 ◽  
Author(s):  
Tran Minh Quynh ◽  
Masaru Yoneyama ◽  
Yasuyuki Maki ◽  
Naotsugu Nagasawa ◽  
Toshiaki Dobashi

Different poly(N-isopropylacrylamide-co-hydroxyethyl methacrylate) copolymers (P(NIPAM-co-HEMA)) were synthesized from N-isopropylacrylamide (NIPA) and hydroxyethyl methacrylate (HEMA) comonomers by both radical and radiation polymerizations for comparison. PLLA-g-P(NIPAM-co-HEMA) graft copolymers were synthesized from L-lactide and respective P(NIPAM-co-HEMA) copolymers by ring opening polymerization. Both NMR and FTIR analyses demonstrated the PLLA chains have been grafted on to the P(NIPAM-co-HEMA) backbone. These graft copolymers revealed the cloud point temperature higher than that of PNIPAM homopolymer as determined by optical transmittance. The graft copolymers self-assembled into micelles with regularly spherical structures as observed by atomic force microscopy (AFM). The properties of these graft copolymers are interesting for the drug delivery system.


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