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End-Functionalized polymers by living cationic polymerization. IV. Poly(vinyl ethers) with acidic or basic terminal groups by functional initiator method by Tamotsu Hashimoto; Etsu Takeuchi; Mitsuo Sawamoto; Toshinobu Higashimura is a Materials Science article available to read on EtoBox.

What is End-Functionalized polymers by living cationic polymerization. IV. Poly(vinyl ethers) with acidic or basic terminal groups by functional initiator method about?

## Abstract Carboxylic acid or primary amine‐terminated poly(isobutyl vinyl ethers) were synthesized by living cationic polymerizations with functionalized initiators (CH~3~CHIOCH~2~CH~2~  X; X: that are the adducts of the corresponding vinyl ethers (CH~2~  CH  OCH~2~CH~2~X) with hydrogen iodide. In the presence of iodine, these initiators induced living cationic polymerization of isobutyl vinyl ether to give polymers with the α‐end group of X originating from the initiators. The polymer molecular weights were regulated by the monomer to initiator feed ratio and the molecular weight distributions were very narrow (M~__w__~/M~__n__~ ≤ 1.15). Subsequent deprotection of the terminal group X led to polymers with a terminal carboxylic acid or primary amine. ^1^H‐ and ^13^C‐NMR analyses showed that the end functionalities of these polymers were all close to unity.

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Author

Tamotsu Hashimoto; Etsu Takeuchi; Mitsuo Sawamoto; Toshinobu Higashimura

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0887-624X)

Published

1990

Language

EN

Field

Materials Science (Physical Sciences)