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Citation: SU Lin, JIANG Hao, LUO Kai, WANG Yue-Chuan. Synthesis and Characterization of Highly Branched Polyesters[J]. Chinese Journal of Applied Chemistry, ;2004, 21(9): 954-957. shu

Synthesis and Characterization of Highly Branched Polyesters

1.
State Key Laboratory for Polymer Materials and Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065

Corresponding author: WANG Yue-Chuan,
Received Date: 29 September 2003
Available Online: 30 December 2003

Highly branched polyesters with linear structure were synthesized from trimellitic anhydride(TMA), epichlorohydrin(ECH), methyl tetrahydrophenyl anhydride(MTHPA) and ethanol. The structure and properties of the polyesters were characterized by¹H NMR, FTIR, GPC, rotating viscometery and DSC. The apparent molecular weights of polyesters were in the range of 2 000~3 500 g/mol, depending on the ratio and feeding manners of monomers. The glass transition temperatures of the polyesters were decreased after introduction of MTHPA and ethanol as the linear unit sources.
- highly branched polyester,
- ring opening polymerization,
- trimellitic anhydride,
- epichlorohydrin
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