The aggregation states of a series of comb-shaped polymers with perfluoroalkyi side chains were investigated. The main chains of the comb-shaped polymers were poly (fumarate), poly (acrylate) and poly (methacrylate). D.s.c. and w.a.x.d, measurements and p.o.m, observations over a wide temperature range showed that all the poly(fluoroalkylfumarates) (PFAF) investigated were amorphous polymers, but poly(fluoroalkylacrylate ) (PFAA) and poly (fluoroalkyimethacrylate) (PFAMA) having a heptadecafluorodecyl (C a F 17 ) group in the side chain were in a mesomorphic state at room temperature. The type of mesophases can be most likely classified as an ordered smectic liquid crystalline (LC) structure in the Smectic B (SB) modification for PFAA and an unordered smectic LC structure in the Smectic A (SA) modification for PFAMA. Increasing the main chain flexibility in going from poly(fumarate) to poly(methacrylate) and poly(acrylate) enhances the probability of ordered structure formation
Посилання на статтю:
Aggregation state and mesophase structure of comb-shaped polymers with fluorocarbon side groups / Vladimir V. Volkov and Nicolai A. Plate // Polymer. – 1992. – Vol 33. – P. 1316-1320.