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Issue 7, 2015
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Sustainable thermoplastic elastomers derived from plant oil and their “click-coupling” via TAD chemistry

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Abstract

We report the preparation of plant oil based triblock copolymers based on soybean oil monomers. The monomers were polymerized via atom transfer radical polymerization with subsequent chain extension, resulting in poly(styrene-b-soybean oil acrylate-b-styrene) (PS-b-PSBA-b-PS) and poly(styrene-b-soybean oil methacrylate-b-styrene) (PS-b-PSBMA-b-PS) triblock copolymers. These polymers, ranging from thermoplastics to thermoplastic elastomers (TPEs), were obtained by tuning molecular structures. We employed a “click coupling” strategy using triazolinedione (TAD) chemistry to create chemical junctions between the soft middle blocks of the triblock copolymers, which behave similar to physical chain entanglements. This method helps to overcome the drawbacks of plant oil based polymers, allowing for increase of tensile strength without sacrificing elongation. Cyclic tensile tests show that the “click coupled” triblock copolymers exhibit excellent elastic recovery characteristics.

Graphical abstract: Sustainable thermoplastic elastomers derived from plant oil and their “click-coupling” via TAD chemistry

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Publication details

The article was received on 18 Apr 2015, accepted on 08 May 2015 and first published on 11 May 2015


Article type: Paper
DOI: 10.1039/C5GC00822K
Citation: Green Chem., 2015,17, 3806-3818
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    Sustainable thermoplastic elastomers derived from plant oil and their “click-coupling” via TAD chemistry

    Z. Wang, L. Yuan, N. M. Trenor, L. Vlaminck, S. Billiet, A. Sarkar, F. E. Du Prez, M. Stefik and C. Tang, Green Chem., 2015, 17, 3806
    DOI: 10.1039/C5GC00822K

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