Lin Gu, Yonggang Gao, Yusheng Qin, Xuesi Chen, Xianhong Wang and Fosong Wang Biodegradable poly(carbonate-ether)s with thermoresponsive feature at body temperature Journal of Polymer Science Part A: Polymer Chemistry 51
Biodegradable and thermoresponsive poly(carbonate-ether)s (PCEs) with carbonate unit (CU) content of 1.0–42.4 mol % and molecular weight of 2.7–247 kg/mol were synthesized in high yield by copolymerization of CO2 and ethylene oxide under double metal cyanide catalyst. The lower critical solution temperature (LCST) window of PCE can be tunable in a range of 21.5–84.1 °C by controlling the CU content and the molecular weight via the adjustment of polymerization conditions. In particular, aqueous solution of PCE with 26.0 mol % of CU exhibited an LCST around 36.1 °C, very close to body temperature.
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