专利号:RO-118879-B1 优先权日:1999-09-01 标题:THE ESTERIFICATION CATALIZER, THE PROCESS FOR THEIR OBTAINING AND THE SYNTHESIS PROCEDURE OF POLYESTER POLYOLES USING THIS CATALYST
参考文献:10.1007/s10965-015-0693-7 摘要:Xu Y, Shen C, Gao S. Preparation and characterization of chitosan gel beads crosslinked by organic titanium. Journal of Polymer Research. 2015 Mar 17;22(4):53. doi: 10.1007/s10965-015-0693-7.