Characteristic Ratios of Model Polydienes and Polyolefins

Jimmy Mays, Nikolaos Hadjichristidis, Lewis J. Fetters

Research output: Contribution to journalArticlepeer-review

72 Scopus citations

Abstract

Homogeneous anionic polymerization offers several unique advantages in the polymerization of diene monomers. Polymers prepared by this method possess extremely narrow molecular weight distributions and are free of branching. The microstructure of the polymer may be controlled by the choice of polymerization conditions. Amorphous polyolefins can be obtained by hydrogenation of diene polymers. Polyolefins prepared in this manner retain the desirable characteristics of the parent material, i.e., narrow molecular weight distributions and an absence of branching. Hence these polymers are ideal models for testing molecular theories. Several series of model polydienes and polyolefins have been prepared by the aforementioned techniques. These polymers have been carefully characterized, with particular emphasis on determining the effect of molecular architecture on chain stiffness as defined by the characteristic ratio. Glass transition temperatures are also reported.

Original languageEnglish (US)
Pages (from-to)2723-2728
Number of pages6
JournalMacromolecules
Volume17
Issue number12-5
DOIs
StatePublished - Jan 1 1984

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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