Biobased Aromatic-Aliphatic Polyols by Thiol-Ene Reactions of Propoxylated Mercaptanized Cardanol  

作　　者：Maha L.Shrestha Mihail Ionescu Xianmei Wan Thomas Upshaw 

机构地区：[1]Kansas Polymer Research Center,Pittsburg State University,1701 South Broadway,Pittsburg,Kansas,USA 66762 [2]Department of Chemistry,Pittsburg State University,1701 South Broadway,Pittsburg,Kansas,USA 66762 [3]Chevron Phillips Chemical Company LP,Bartlesville Technology Center,Bartlesville,Oklahoma,USA 74003

出　　处：《Journal of Renewable Materials》2018年第6期630-641,共12页可再生材料杂志（英文）

摘　　要：Aromatic-aliphatic polyols were obtained previously from the thiol-ene reactions of propoxylated cardanol with hydroxyalkyl mercaptans;these aromatic-aliphatic polyols were then utilized in the preparation of rigid polyurethane foams with excellent properties.The current work describes a variant of cardanol polyol synthesis by thiol-ene reactions in three steps.The first step is propoxylation of cardanol by reacting cardanol with propylene oxide;the second step is mercaptanization of propoxylated cardanol by reacting double bonds with hydrogen sulfide;and the third step involves the addition of the thiol groups of mercaptanized propoxylated cardanol to the double bonds of allyl alcohol,glycerol-1-allyl ether,and trimethylolpropane allyl ether.Thus,obtained polyols were characterized by standard analytical methods.Rigid polyurethane foams prepared from these polyols show promising physical-mechanical properties.The rigid polyurethane foams can be used for various applications such as thermo-insulation of freezers,storage tanks and pipes for food and chemical industries,wood substitutes and flotation materials.

关 键 词：CARDANOL mercaptanized propoxylated cardanol photochemical thiol-ene reaction allyl alcohol glycerol-1-allyl ether trimethylolpropane allyl ether 

分 类 号：O62[理学—有机化学]