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Transition-metal-free controlled polymerization for poly(p-aryleneethynylene)s.

ABSTRACT: A transition-metal-free controlled polymerization for the attainment of poly(p-aryleneethynylene)s is developed. The polymerization of 1-pentafluorophenyl-4-[(trimethylsilyl)ethynyl]benzene with a catalytic amount of fluoride anions proceeds in a chain-growth-like manner to afford polymers with controlled molecular weights and low polydispersity indexes. The mechanism involves a pentacoordinated fluorosilicate as a key intermediate. The anionic "living" nature of this process is applied to block copolymerization and also surface-terminated polymerization.

SUBMITTER: Sanji T

PROVIDER: S-EPMC5592747 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature

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Transition-metal-free controlled polymerization for poly(<i>p</i>-aryleneethynylene)s.

Sanji Takanobu T Motoshige Asahi A Komiyama Hideaki H Kakinuma Junko J Ushikubo Rie R Watanabe Satoru S Iyoda Tomokazu T

Chemical science 20141029 1

A transition-metal-free controlled polymerization for the attainment of poly(<i>p</i>-aryleneethynylene)s is developed. The polymerization of 1-pentafluorophenyl-4-[(trimethylsilyl)ethynyl]benzene with a catalytic amount of fluoride anions proceeds in a chain-growth-like manner to afford polymers with controlled molecular weights and low polydispersity indexes. The mechanism involves a pentacoordinated fluorosilicate as a key intermediate. The anionic "living" nature of this process is applied t ...[more]

PMID: 28936304

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