Dou Zongao, Zhang Hemin, Li Jiajun, Sun Jing, Fang Qiang
Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China.
Biomacromolecules. 2024 Dec 9;25(12):8038-8045. doi: 10.1021/acs.biomac.4c01291. Epub 2024 Nov 6.
Four biobased phosphate-containing aryl monomers with methoxy, allyl, and vinyl groups as substituents have been successfully synthesized. Copolymerizing these monomers with thiophenol or mercaptans via the photoclick thiol-ene reaction gives the polymers with refractive indices () of 1.63-1.70 and Abbe numbers () of 12.8-38.5. An investigation of the relationship of the values with the substituents on the benzene rings of the monomers indicates that methoxy and vinyl groups can collectively increase the values. In comparison with allyl groups, vinyl groups endow the polymers with both higher and . Moreover, these polymers also display high transmittance, high thermostability, and low haze values in the visible-light region, suggesting that these biobased functional monomers are satisfactory precursors used in the fabrication of optical devices.
已成功合成了四种以甲氧基、烯丙基和乙烯基为取代基的含生物基磷芳基单体。通过光点击硫醇-烯反应将这些单体与苯硫酚或硫醇共聚，得到的聚合物折射率（）为1.63 - 1.70，阿贝数（）为12.8 - 38.5。对这些值与单体苯环上取代基之间关系的研究表明，甲氧基和乙烯基可共同提高这些值。与烯丙基相比，乙烯基使聚合物具有更高的和。此外，这些聚合物在可见光区域还表现出高透光率、高热稳定性和低雾度值，这表明这些生物基功能单体是用于制造光学器件的理想前体。
