Conformational properties and equilibrium rigidity of poly(ester imide) molecules with m-phenylenediamine fragments in the imide groups

Authors
Bushin, SV Astapenko, EP Bezrukova, MA Belyaeva, EV Goikhman, MY Kudryavtsev, VV
Citation
Sv. Bushin et al., Conformational properties and equilibrium rigidity of poly(ester imide) molecules with m-phenylenediamine fragments in the imide groups, POLYM SCI B, 42(9-10), 2000, pp. 236-238
Citations number
10
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER SCIENCE SERIES B
ISSN journal
15600904 → ACNP
Volume
42
Issue
9-10
Year of publication
2000
Pages
236 - 238
Database
ISI
SICI code
1560-0904(200009/10)42:9-10<236:CPAERO>2.0.ZU;2-1
Abstract
The flotation and translational diffusion coefficients of the fractions of poly(ester imide) containing an m-phenylenediamine residue in the imide fra gment of the chain were measured in dilute tetrachloroethane solutions. The molecular mass of the fractions varied in the (8.8-117) x 10(3) range. The Kuhn segment length of the macromolecules (A = 57.7 x 10(-8) cm) was estim ated with regard to the effects of molecular percolation (draining) and vol ume swelling (the thermodynamic parameter of volume swelling is epsilon = 0 .046), The ester imide fragments of the polymer molecules behave as rigid c hain elements alternating with flexible aliphatic fragments of the molecule s.