Liquid Crystalline Polymers Containing Heterocycloalkane Mesogens. 4. Biphasic Side-Chain Liquid Crystalline Polysiloxanes Containing Trans 5-(n-Undecanyl)-2-(4-Methoxyphenyl)-1,3-Dioxane and Trans 2-(n-Decanyl)-5-(4-Methoxyphenyl)-1,3-Dioxane Mesogens.

Abstract

The synthesis and characterization of side-chain liquid crystalline polysiloxanes and copolysiloxanes containing trans 5-(n-undecanyl)-2-(4-methoxyphenyl)-1,3-dioxane and respectively trans 2-(n-decanyl)-5-(4-methoxyphenyl)-1-3-dioxane side groups is presented. In most cases the resulting polymers exhibit two glass transition temperatures, i.e., one due to the independent motion of the main chain, and the other due to the independent but cooperative motion of the side chains.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1986
Accession Number
ADA183843

Entities

People

  • Chain S. Hsu
  • Virgil Percec

Organizations

  • Case Western Reserve University

Tags

DTIC Thesaurus Topics

  • Amorphous Materials
  • Aqueous Solutions
  • Classification
  • Copolymers
  • Ethers
  • Glass
  • Glass Transition Temperature
  • High Temperature
  • Liquids
  • Materials
  • Military Research
  • Mixtures
  • Polymers
  • Procurement
  • Security
  • Transition Temperature
  • Transitions

Fields of Study

  • Chemistry

Readers

  • Polymer Science and Technology