Synthesis and Characterization of Polystyrene-Block-Poly(Methylphenylsilylene) and Polyisoprene-Block-(Polymethylphenylsilylene).

Abstract

Polystyrene/poly(methylphenylsilylene) and polyisoprene/poly(methylphenyl silylene) block copolymers were prepared by two independent methods. Subsequent additions of solutions of cyclotetrasilanes in benzene to the living ends of polystyrene and polyisoprene resulted in the formation of well-defined block copolymers with narrow molecular weight distributions (Mw/Mn < 1.3). Condensation of the living ends of polyisoprene and polystyrene with bromide end-terminated polysilanes also resulted in the formation of block copolymers. The materials were characterized by (l)H and (29)Si NMR, GPC, DSC, and elemental analysis. jg p.2

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Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1995
Accession Number
ADA295983

Entities

People

  • E. Fossum
  • J. A. Love
  • K. Matyjaszewski

Organizations

  • Carnegie Mellon University

Tags

DTIC Thesaurus Topics

  • Alkenes
  • Biomedical And Dental Materials
  • Block Copolymers
  • Chemical Synthesis
  • Chemistry
  • Condensation
  • Copolymers
  • Detectors
  • Dielectric Polymers
  • Macromolecules
  • Materials
  • Molecular Weight
  • Polymeric Films
  • Polymers
  • Polystyrenes
  • Precipitation
  • Transition Temperature

Fields of Study

  • Chemistry

Readers

  • Polymer Science and Technology

Technology Areas

  • Microelectronics