ISSN:
1436-2449
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Summary Thermal molecular motion of a series of comb-shaped polymers with heptadecafluorodecyl side chains (CF 8C2-) has been studied based on dynamic viscoelastic measurement. The main chain of comb-shaped polymers was poly(fumarate), poly(methacrylate), and poly(acrylate). Poly(fluoroalkylfumarate) with heptadecafluorodecyl group, P(CF 8C2-iPF) was amorphous polymer, whereas poly(acrylate) and poly(methacrylate) with CF 8C2-, P(CF 8C2-Acr) and P(CF 8C2-MAcr) showed mesomorphic behavior. The pervaporation behavior of water/organic mixtures through amorphous polymer, P(CF 8C2-iPF), and mesomorphic one, P(CF 8C2-Acr), were investigated. The distinct increase in permselectivity has been observed at the mesomorphic transition of P(CF 8C2-Acr).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00306388
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