Well-Defined Polymers Obtained Through the Use of Controlled Radical Polymerization: the Use of Alkyl Iodides as Degenerative Transfer Agents.

Abstract

Through alkyl iodides, R' - X, used as degenerative transfer agents, control of the radical polymerization of styrene and butyl acrylate has been achieved. The polymerizations were initiated by AIBN and BPO, and the generated polymers obtained had molecular weights which were predetermined by the equation, DPn = D(M) / (R' - X)o. The resulting polymers had relatively low polydispersities, Mn/Mw approx. 1.4. This control was achieved by using degenerative transfer of the iodine atom to produce a dynamic equilibrium between dormant and active propagating species. The effects of initiator, temperature, and transfer agent will be presented. jg p.2

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Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1995
Accession Number
ADA295991

Entities

People

  • J. S. Wang
  • K. Matyjaszewski
  • S. G. Gaynor

Organizations

  • Carnegie Mellon University

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Acrylates
  • Block Copolymers
  • Chemical Compounds
  • Chemical Reaction Properties
  • Chemical Reactions
  • Chemistry
  • Conversion
  • Explosives Initiators
  • Iodine
  • Iodine Compounds
  • Military Research
  • Molecular Weight
  • Polymerization
  • Polymers
  • Selenium Compounds
  • United States Government

Readers

  • Organic Chemistry
  • Polymer Science and Technology