Accession Number : ADA313386

Title :   Segment Length Distributions from Thick Polymer Films: ToF-SIMS of Polymer Surface Structure.

Descriptive Note : Technical rept.,

Corporate Author : STATE UNIV OF NEW YORK AT BUFFALO DEPT OF CHEMISTRY

Personal Author(s) : Zhuang, H. -Z. ; Gardella, J. A., Jr. ; Hercules, D. M.

PDF Url : ADA313386

Report Date : AUG 1996

Pagination or Media Count : 8

Abstract : Over the past fifteen years, the use of ESCA and infrared techniques have made great strides in relating the differences between polymer surface composition and structure and the bulk composition and structure. Much has been learned about the role of synthetic structural design and the role of processing variations and the resulting surface structure and composition of polymers. Yet, a quantitative description of segment length distribution at the surface of a multicomponent polymer remains elusive. Since, fundamentally, polymers involve a distribution of chain lengths which yield the particular properties, it would be desirable to know whether, at the surface, the distribution of segment or chain lengths is different than in the bulk. Therefore, like composition, the surface structure can lead to properties different than that predicted by the simple knowledge of the bulk structure, in this case representing the segment length distribution.

Descriptors :   *DISTRIBUTION, *SURFACES, *LENGTH, *POLYMERIC FILMS, *THICK FILMS, *SEGMENTED, CHAINS, MOLECULAR STRUCTURE, INFRARED RADIATION, MASS SPECTRA.

Subject Categories : Polymer Chemistry
      Physical Chemistry
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE