Polymer Science Faculty Research
Title
Comparison of the Thermotropic and Solution Behavior of Six-Arm Star and Comb Poly [11-(4'-cyanophenyl-4''-phenoxy) undecyl acrylate] s
Document Type
Article
Publication Date
9-2-2006
Abstract
“Six-arm star” poly[11-(4‘-cyanophenyl-4‘ ‘-phenoxy)undecyl acrylate]s with 13−112 (gel permeation chromatography, GPC, relative to linear polystyrene) or 23−756 (GPC using a light scattering detector) repeat units were synthesized from the hexafunctional initiator, 1,2,3,4,5,6-hexa((4‘-methyl(2‘ ‘-bromopropionate)phenoxymethyl)benzene, by atom transfer radical polymerization of 11-(4‘-cyanophenyl-4‘ ‘-phenoxy)undecyl acrylate, followed by fractionation to narrow the polydispersity to 1.06−1.57. The absolute molecular weight, size, and shape of these polymers were characterized by light scattering in CH2Cl2, and their thermotropic behavior was analyzed by differential scanning calorimetry; both types of properties were compared to those of the other architectures, especially the corresponding comb poly[11-(4‘-cyanophenyl-4‘ ‘-phenoxy)undecyl acrylate]s with six branches. The solution and thermotropic behavior of the six-arm star and comb polymers are similar.
Publication Title
Macromolecules
Volume
39
Issue
20
First Page
6800
Last Page
6810
Recommended Citation
Kasko, Andrea M. and Pugh, Coleen, "Comparison of the Thermotropic and Solution Behavior of Six-Arm Star and Comb Poly [11-(4'-cyanophenyl-4''-phenoxy) undecyl acrylate] s" (2006). Polymer Science Faculty Research. 258.
https://ideaexchange.uakron.edu/polymerscience_ideas/258