A Reexamination of Single Chain Scattering in Heterogeneous Block Copolymers.

Abstract

Calculations utilizing a scattering formalism due to deGennes are compared with previously-reported SANS data from two polystyrene-polybutadiene samples which have been blended with similar diblocks in which the B segment is deuterated. The present conclusion is that both the lower- and higher- molecular-weight samples exhibit scattering in excess of that predicted, presumably due to clustering of the labelled chains or some other chain-length dependent phenomenon. Keywords: small angle neutron scattering.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1986
Accession Number
ADA172457

Entities

People

  • C. V. Berney
  • P. Kofinas
  • Robert E. Cohen

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Biomedical And Dental Materials
  • Block Copolymers
  • Chemical Engineering
  • Chemistry
  • Coherent Scattering
  • Copolymers
  • Engineering
  • Incoherent Scattering
  • Materials
  • Materials Engineering
  • Materials Laboratories
  • Materials Science
  • Military Research
  • Molecular Weight
  • Neutron Scattering
  • Polymers
  • Scattering

Readers

  • Polymer Science and Technology
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Theoretical Analysis.

Technology Areas

  • Microelectronics