As a naturally occurring terpenoid that is abundant in essential oils,citronellal remains largely unexplored in polymer science.Herein,we present a novel strategy for converting bio-based citronellal into the diene mo...As a naturally occurring terpenoid that is abundant in essential oils,citronellal remains largely unexplored in polymer science.Herein,we present a novel strategy for converting bio-based citronellal into the diene monomer 6,10-dimethyl-1,3,9-undecatriene(DMUT),which under-goes neodymium-catalyzed coordination polymerization to yield poly(6,10-dimethyl-1,3,9-undecatriene)(PDMUT),a bio-derived polydiene poly-mer.This provides a facile and sustainable route for transforming renewable citronellal into functional polymers.The effects of polymerization conditions on the catalytic performance and polymer characteristics,including molecular weight,polydispersity,and microstructure,were sys-tematically investigated.In addition,DMUT was successfully copolymerized with isoprene(IP)and 1,3-butadiene(BD),yielding copolymers with tunable compositions and microstructures.These results demonstrate the versatility of DMUT as a renewable building block for both homopoly-mers and copolymers,paving the way toward bio-based elastomeric materials with customizable properties.展开更多
基金supported by the National Key R&D Program of China(No.2022YFC2104702)the National Natural Science Foundation of China(No.22071236)H.L.thanks for the financial support from the Taishan Scholars Program(No.tsqn202211165).
文摘As a naturally occurring terpenoid that is abundant in essential oils,citronellal remains largely unexplored in polymer science.Herein,we present a novel strategy for converting bio-based citronellal into the diene monomer 6,10-dimethyl-1,3,9-undecatriene(DMUT),which under-goes neodymium-catalyzed coordination polymerization to yield poly(6,10-dimethyl-1,3,9-undecatriene)(PDMUT),a bio-derived polydiene poly-mer.This provides a facile and sustainable route for transforming renewable citronellal into functional polymers.The effects of polymerization conditions on the catalytic performance and polymer characteristics,including molecular weight,polydispersity,and microstructure,were sys-tematically investigated.In addition,DMUT was successfully copolymerized with isoprene(IP)and 1,3-butadiene(BD),yielding copolymers with tunable compositions and microstructures.These results demonstrate the versatility of DMUT as a renewable building block for both homopoly-mers and copolymers,paving the way toward bio-based elastomeric materials with customizable properties.
