SANS (Small-Angle Neutron Scattering) Studies of the Configurations of Single Chains in Heterogeneous Block Copolymers.

Abstract

Small-angle neutron scattering studies of polystyrene-polybutadiene diblock copolymers of spherical morphology are discussed, with emphasis on the effect of this morphology on the spatial organization of the polymer chains. Three particular cases are examined: i) the distribution within the matrix of added (matrix) homopolymer, ii) the distribution within the spherical microdomains of added (microdomain) homopolymer, and iii) isotopic effects occurring in the B domains when a B-deuterated diblock SB sub d is blended with a normal sample SB. Deviations from ideal mixing are found in all three cases.

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Document Details

Document Type
Technical Report
Publication Date
Nov 25, 1986
Accession Number
ADA174653

Entities

People

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

Organizations

  • Massachusetts Institute of Technology

Tags

DTIC Thesaurus Topics

  • Block Copolymers
  • Chemical Engineering
  • Chemistry
  • Classification
  • Contrast
  • Copolymers
  • Dielectric Polymers
  • Massachusetts
  • Materials
  • Molecular Weight
  • Momentum Transfer
  • Neutron Scattering
  • Polymers
  • Scattering
  • Security
  • Spectra
  • Synthetic Rubber

Fields of Study

  • Chemistry

Readers

  • Polymer Science and Technology

Technology Areas

  • Microelectronics