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近期论文

近期论文

Industrial Crops and Products, 2023, 203: 117188.


ABSTRACT  
The design of functional monomers and their functional polymer materials from renewable biomass is gaining more and more attention. This work describes a simple and efficient method to synthesis multi-functional monomers derived from castor oil (Ricinus communis L). Methyl undecylenate was used as starting materials to synthesize epoxy methyl undecylenate monomer via double-bonded epoxidation, and subsequent ammonia ring opening reaction were conducted subsequently to obtain long-chain multi-functional monomer. The prepared multi-functional monomer was applied to design functional polymers by melt polycondensation. For selfcondensation, the hydroxyl and secondary amine group of the multi-functional monomer can react with the ester  group to form cross-linked polyamide, which possess elastic recovery of up to 97 % after five cycles of stretching.  When the multi-functional monomer was copolymerized with 1, 6-hexamethylenediamine, functional polyamide  with tensile strength of 43 MPa and elongation at break of 265 % was obtained.




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