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A one‐step strategy for aliphatic poly(carbonate‐ester)s with high performance derived from CO 2 , propylene oxide and l ‐lactide
Author(s) -
Song Pengfei,
Xu Haidong,
Mao Xudong,
Liu Xiaojun,
Wang Lei
Publication year - 2017
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.3974
Subject(s) - propylene carbonate , propylene oxide , differential scanning calorimetry , glass transition , thermogravimetric analysis , materials science , copolymer , thermal decomposition , polymer chemistry , zinc , yield (engineering) , oxide , thermal stability , molar mass distribution , carbonate , catalysis , nuclear chemistry , organic chemistry , polymer , ethylene oxide , chemistry , composite material , metallurgy , electrode , electrochemistry , physics , thermodynamics
To improve the performance of PPC, aliphatic poly(carbonate‐ester)s were prepared in one‐step strategy from the terpolymerization of CO 2 , propylene oxide (PO), and l ‐lactide ( L ‐LA) catalyzed by zinc glutarate. Consequently giving high‐molecular weight terpolymers (PPCLAs) in a very high yield (8450.8–9435.8 g mol −1 of Zn). The resulting terpolymers PPCLAs were characterized by 1 H NMR, showing that PPCLAs had an almost alternating structure for the components of CO 2 , PO, and L‐LA. The influence of molecular weight and L‐LA content on the properties of PPCLAs was also investigated. Differential scanning calorimetry and thermogravimetric analysis (measurements revealed that the glass transition temperature ( T g ) and thermal decomposition temperature ( T d ) of PPCLAs are all much higher than those of PPC and increased with increasing molecular weight and L‐LA content. Tensile tests showed that the high mechanical properties of PPCLAs are due to the introduction of L‐LA into the copolymerization of CO 2 and PO. Furthermore, PPCLA4 exhibits high degradability, and after 10 weeks, the weight loss increases up to 6.58%, which is significantly higher than that of PPC of 4.58%. Copyright © 2016 John Wiley & Sons, Ltd.