The influence of chain configuration and, in turn, chain packing on the sorption and transport properties of poly(tert-butyl acetylene)

A series of poly(tert‐butyl acetylene) (PTBA) polymers was prepared with cis contents, as characterized by 13C NMR spectroscopy, ranging from 44% to 100%. The sorption and transport properties of propane in this systematically varied series were determined by a sensitive gravimetric sorption techniq...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied polymer science 1993-09, Vol.49 (12), p.2065-2074
Main Authors: Morisato, A., Miranda, N. R., Freeman, B. D., Hopfenberg, H. B., Costa, G., Grosso, A., Russo, S.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Miscellaneous
Organic polymers
Physicochemistry of polymers
Properties and characterization
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A series of poly(tert‐butyl acetylene) (PTBA) polymers was prepared with cis contents, as characterized by 13C NMR spectroscopy, ranging from 44% to 100%. The sorption and transport properties of propane in this systematically varied series were determined by a sensitive gravimetric sorption technique. As the cis content of the polymer increased, propane solubility and diffusivity decreased markedly and the d‐spacing, determined by wide angle x‐ray diffraction spectroscopy, decreased monotonically with increasing cis content, suggesting that higher order molecular structure, related explicitly to configurational variations, may strongly influence chain packing in these rigid, glassy materials and, in turn, sorption and transport properties of small molecules in this polymer series. © 1993 John Wiley & Sons, Inc.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.1993.070491202