DYNAMO-OPTICAL AND CONFORMATIONAL PROPERTIES OF POLY(BIPHENYLSULFONETEREPHTHALAMIDE) IN CONCENTRATED SULFURIC-ACID

Authors
FILIPPOVA TV SHTENNIKOVA IN LAVRENKO PN
Citation
Tv. Filippova et al., DYNAMO-OPTICAL AND CONFORMATIONAL PROPERTIES OF POLY(BIPHENYLSULFONETEREPHTHALAMIDE) IN CONCENTRATED SULFURIC-ACID, Macromolecular chemistry and physics, 198(6), 1997, pp. 1843-1854
Citations number
11
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular chemistry and physics → ACNP
ISSN journal
10221352
Volume
198
Issue
6
Year of publication
1997
Pages
1843 - 1854
Database
ISI
SICI code
1022-1352(1997)198:6<1843:DACPOP>2.0.ZU;2-W
Abstract
Optical and hydrodynamic properties of poly(biphenylsulfoneterephthala mide) (PPhSTPhA) (systematic IUPAC name: rephthaloylimino-2,2'-sulfony lbiphenyl-4,4'-diyl)) in sulfuric acid were investigated by means of f low birefringence and viscometry. Analysis of experimental molecular w eight dependence on the shear optical coefficient made it possible to determine optical anisotropy of a monomer segment and a monomeric unit and the rigidity of the macromolecules. It was established that the m olecules of this heterocyclic polyamide have the conformation of a kin etically rigid coil.