Synthesis and polymerization of alkyl halide-functional cyclic carbonates
2011 (English)In: Polymer, ISSN 0032-3861, E-ISSN 1873-2291, Vol. 52, no 25, 5716-5722 p.Article in journal (Refereed) Published
To increase the diversity in functional aliphatic polycarbonates, a series of novel chloro- and bromo-functional six-membered cyclic carbonate monomers were synthesized. Despite asymmetry in the monomer functionalities, homopolymerization of the monomers afforded semicrystalline polycarbonates with a high tendency to crystallize from the melt and/or on precipitation from a THF solution. Melting points were found in the 90-105 degrees C or 120-155 degrees C range for polymers comprising methyl or ethyl moieties, respectively, in the backbone. The monomers were further copolymerized with trimethylene carbonate to form random copolymers. Even among some of these random copolymers elements of semicrystallinity were found as confirmed by melting endotherms in DSC. The results clearly show that the incorporation of alkyl halide functionalities in aliphatic polycarbonates may lead to materials with a high ability to form crystallites, even in random copolymers, likely driven by polar interactions due to the presence of the halide functionalities.
Place, publisher, year, edition, pages
2011. Vol. 52, no 25, 5716-5722 p.
Cyclic carbonate monomers, Polycarbonates, Semicrystalline polymers
Chemical Sciences Polymer Chemistry
Research subject Chemistry with specialization in Polymer Chemistry
IdentifiersURN: urn:nbn:se:uu:diva-165694DOI: 10.1016/j.polymer.2011.10.027ISI: 000297539000004OAI: oai:DiVA.org:uu-165694DiVA: diva2:474834