Polystyrenes Modified with Silsesquioxanes

Abstract

We are continuing a program to design and synthesize well-defined, linear polyhedral oligomeric silsesquioxane (POSS) polymers to further develop the structure/property relationships of this important class of technologically useful compounds. A typical POSS-monomer, R7P(Si8O12), is a well-defined octomer.containing a single "P" functionality for polymerization and seven "R" groups to solubilize and compatibilize the inorganic filler with the organic matrix. Previously, we have reported the synthesis and characterization of a variety of POSS-styrene copolymers wherein the POSS unit dangles from the main chain in a pendant fashion. We have noted that the POSS cages appear to generate a reversible network material, and the strength of this network is strongly influenced by the seven "R" groups. This work summarizes and compares the effects of four different R groups: cyclopentyl, cyclohexyl, isobutyl and phenyl.

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Document Details

Document Type
Technical Report
Publication Date
May 04, 2001
Accession Number
ADA410327

Entities

People

  • Patrick T. Mather
  • Shawn H. Phillips
  • Timothy S. Haddad

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Biomedical And Dental Materials
  • Department Of Defense
  • Dielectric Polymers
  • Engineering
  • Information Operations
  • Materials
  • Materials Science
  • Military Research
  • Polymers
  • Polystyrenes

Readers

  • Polymer Science and Technology

Technology Areas

  • Microelectronics