Cross-linkable and thermally stable aliphatic polycarbonates derived from CO2, propylene oxide and maleic anhydride |
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| Authors: | Peng-fei Song Shuan-jin Wang Min Xiao Feng-guang Du Li-qiang Gan Guo-qing Liu Yue-zhong Meng |
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| Affiliation: | (1) State Key Laboratory of Optoelectronic Materials and Technologies/Institute of Optoelectronic and Functional Composite Materials, Sun Yat-Sen University, Guangzhou, 510275, People’s Republic of China;(2) R&D Center, Henan Tianguan Enterprise Group Co. Ltd, Nanyang, Henan, 473000, People’s Republic of China |
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| Abstract: | Poly(propylene carbonate maleate) (PPCMA) was successfully synthesized from carbon dioxide with propylene oxide and maleic anhydride using supported zinc glutarate as catalyst. The PPCMA can be readily cross-linked using dicumyl peroxide (DCP) as a cross-linking agent. The gel content, thermal performance and mechanical properties of the cross-linked PPCMA were then investigated. The results showed that the gel content increased with increasing DCP content and reaction temperature. The as-prepared PPCMA showed higher glass transition temperature (T g) and decomposition temperature compared with uncross-linkable poly(propylene carbonate) (PPC). The introduction of small amount of cross-linkable moiety provides a very effective way to improve the thermal stability and to extend the molecular weight of PPC, consequently extending its application area. |
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| Keywords: | Carbon dioxide Propylene oxide Maleic anhydride Cross-linking |
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