Journal
POLYMER
Volume 46, Issue 22, Pages 9501-9507Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2005.07.036
Keywords
hyperbranched polyesters; synthesis; self-assembly
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In this papers hyperbranched polyesters (HPs) were synthesized in the molten state from 2,2-bis(hydroxymethyl) propionic acid (bis-MPA) and 2-ethyl-2-hydroxymethyl-1,3-propanediol (TMP) using acid catalysis. The modified hyperbranched polyesters were obtained through the chemical modification of the hyperbranched polyester cores by substituting a controlled fraction of the terminal hydroxyl groups with touluene-4-sulfonyl chloride using triethylamine (TEA) as an acceptor of HCl. The resultant polyesters were characterized by H-1 NMR, C-13 NMR, FT-IR, UV and GPC and their self-assembly behaviors were investigated. The results revealed that self-assembled structures could be formed in selected solvents (trichloromethane/acetone or trichioromethane/n-hexane). (c) 2005 Elsevier Ltd. All rights reserved.
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