EFFECT OF THERMAL MOLECULAR-MOTION ON PERVAPORATION BEHAVIOR OF COMB-SHAPED POLYMERS WITH FLUOROCARBON SIDE-GROUPS

Authors
VOLKOV VV FADEEV AG PLATE NA AMAYA N MURATA Y TAKAHARA A KAJIYAMA T
Citation
Vv. Volkov et al., EFFECT OF THERMAL MOLECULAR-MOTION ON PERVAPORATION BEHAVIOR OF COMB-SHAPED POLYMERS WITH FLUOROCARBON SIDE-GROUPS, Polymer bulletin, 32(2), 1994, pp. 193-200
Citations number
16
Categorie Soggetti
Polymer Sciences
Journal title
Polymer bulletin → ACNP
ISSN journal
01700839
Volume
32
Issue
2
Year of publication
1994
Pages
193 - 200
Database
ISI
SICI code
0170-0839(1994)32:2<193:EOTMOP>2.0.ZU;2-Q
Abstract
Thermal molecular motion of a series of comb-shaped polymers with hept adecafluorodecyl side chains (C(F)8C2-) has been studied based on dyna mic viscoelastic measurement. The main chain of comb-shaped polymers w as poly(fumarate), poly(methacrylate), and poly(acrylate). Poly(fluoro alkylfumarate) with heptadecafluorodecyl group, P(CF8C2-IPF) was amorp hous polymer, whereas poly(acrylate) and -poly(methacrylate) with C(F) 8C2-, P(CF8C2-Acr) and P(CF8C2-MAcr) showed mesomorphic behavior. The pervaporation behavior of water/organic mixtures through amorphous pol ymer, P(CF8C2-IPF), and mesomorphic one, P(CF8C2-Acr), were investigat ed. The distinct increase in permselectivity has been observed at the mesomorphic transition of P(CF8C2-Acr).