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Synthesis and characterization of siloxane functionalized CO2-based polycarbonate.
- Source :
-
Polymer . Jan2023, Vol. 266, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- CO 2 -based polycarbonates are among the most promising eco-friendly polymers with excellent biodegradability and biocompatibility. However, the poor performance of conventional CO 2 -based polycarbonates such as poly(propylene carbonate) (PPC) and poly(cyclohexene oxide) (PCHC) limits their application. Herein, a series of siloxane functionalized CO 2 -based polycarbonates were obtained via terpolymerization of carbon dioxide (CO 2), propylene oxide (PO), and [2-(3, 4-epoxycyclohexyl)-ethyl] trimethoxysilane (TMSO) using a SalenCoCl/PPNCl catalyst system. A systematic study of these polycarbonate's thermal, mechanical, and surface properties was conducted by tuning the ratio between TMSO and PO. The siloxane units offered polycarbonate with a higher surface energy, resulting in a water contact angle of 110° and a significant improvement in glass transition temperature (T g) and decomposition temperature (T d). Additionally, the micro-crosslinked structure formed by the hydrolysis and condensation of methoxysilane groups provided to the polycarbonate's remarkable mechanical strength, with a high tensile strength of 46 MPa. As a result, a novel CO 2 -based polycarbonate derived from cost-efficient silane coupling agents and CO 2 has shown promising results as an alternative to rigid plastics used in industry. [Display omitted] • Siloxane functionalized polycarbonates were prepared from carbon dioxide and epoxides. • Micro-crosslinked structure of polycarbonate endows its excellent mechanical properties. • Methoxysilane groups increase surface energy and permit post-modification. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00323861
- Volume :
- 266
- Database :
- Academic Search Index
- Journal :
- Polymer
- Publication Type :
- Academic Journal
- Accession number :
- 161280757
- Full Text :
- https://doi.org/10.1016/j.polymer.2022.125623