Journal
MACROMOLECULAR RESEARCH
Volume 15, Issue 2, Pages 173-177Publisher
POLYMER SOC KOREA
DOI: 10.1007/BF03218770
Keywords
living anionic polymerization; comb-like copolymers; topology; organization; polystyrene; polyisoprene
Categories
Ask authors/readers for more resources
Living anionic and cationic polymerizations have been combined to prepare various types of comb-like copolymers composed of polystyrene (PS) and polyisoprene (PI) blocks, with a precisely controlled architecture. According to the relative placement of these elementary building blocks, combs with randomly distributed PS and PI or with poly(styrene-b-isoprene) diblock branches (I & II, respectively) can be prepared. The reaction procedure initially includes the synthesis of a poly(chloroethylvinyl ether) using living cationic polymerization, which is used as the reactive backbone to successively graft PS-Li+ and PI-Li+ or PI-b-PS-Li+ to obtain structures (I) or (II). The synthesis of Janus-type PS-comb-b-PI-combs (III) initially involves the synthesis of a diblock backbone using living cationic polymerization, which bears two distinct reactive functions having either a protected or activated form. Living PS-Li+ and PI-Li+ are then grafted, in two separate steps, onto each of the reactive functions of the backbone, respectively.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available