Synthesis and Application of a Novel Aromatic Hyperbranched Polyester

Abstract

Abstract: New aromatic AB₂-type monomer propyl 3,5-(dihydroxyethoxy) benzoate PDEBwas synthesized by two steps, firstly the esterification of 3,5-dihydroxybenzoic acid by propanol, then the alkoxylation of the intermediate product with 1-chloroethanol. By polycondensation of PDEB, a hyperbranched aromatic polyester with aliphatic chain segments was effectively prepared. The structure of the product was analyzed by IR, ¹H NMR, DSC, TGAand viscosity measurements. The results showed that the T_g of PPDEBdecreased sharply with little change in t_d

Key words: Hyperbranched polymer, Aromatic polyesters, Melting polycondensation, Rheology modification

CLC Number:

O631

TrendMD:

ZHANG Xiao-Long, TANG Li-Ming, QIU Teng, FU Yong-Zhu, LIU De-Shan . Synthesis and Application of a Novel Aromatic Hyperbranched Polyester[J]. Chem. J. Chinese Universities, 2001, 22(10): 1761.

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Synthesis and Application of a Novel Aromatic Hyperbranched Polyester

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