Technical Report No. 9

Abstract

Relationship of the authors' research on molecular structure and melt viscosity of polymers to earlier research by Tobolsky is discussed. Methods for making monodisperse polystyrenes of molecular weight of 1000 or lower were developed as well as methods for introducing a chloromethyl group on the aromatic ring of a predetermined fraction of the styrene units in a polystyrene chain, with negligible cross linking. A monodisperse polystyrene backbone of molecular weight 1.4 x 10 to the 5th power containing on the average one -CH2Cl group per 400 styrene units, was reacted with an excess of ''monodisperse'' polystyryllithium "branches" to yield a product containing a comb-type polymer.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1963
Accession Number
AD0408900

Entities

Organizations

  • Carnegie Mellon University

Tags

Communities of Interest

  • Counter WMD
  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerospace Industry
  • Alkenes
  • Aromatic Hydrocarbons
  • Chemical Synthesis
  • Chemistry
  • Cyclic Hydrocarbons
  • Equations
  • Hydrocarbon Fuels
  • Hydrocarbons
  • Materials
  • Materials Science
  • Measurement
  • Military Research
  • New Jersey
  • New York
  • Organic Chemistry
  • Polymers

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  • Polymer Science and Technology