Vanillin Based Polymers:VI.Poly(hydrovanilloin-furfural)and Poly(hydrovanilloin-5-hydroxymethylfurfural)  

作　　者：Ananda S.Amarasekara Gabriel Murillo Morales Raghava R.Kommalapati 

机构地区：[1]Department of Chemistry,Prairie View A&M University,700 University Drive,Prairie View,TX 77446,USA [2]Center for Energy&Environmental Sustainability,Prairie View A&M University,700 University Drive,Prairie View,TX 77446,USA [3]Department of Civil and Environmental Engineering,Prairie View A&M University,700 University Drive,Prairie View,TX 77446,USA

出　　处：《Journal of Renewable Materials》2024年第9期1495-1506,共12页可再生材料杂志（英文）

基　　金：funded by United States National Science Foundation(NSF)Grant HRD-1036593;USDA-NIFA Grant 12684238:Award No.2020-65209-31474;United States Department of Energy Grant DE-SC0023345.

摘　　要：Renewable resources based polymers provides a sustainable alternative to petroleum derived polymeric materials.As a part of our series on synthesis of vanillin based renewable polymers,we report the synthesis of poly(hydrovanilloin-furfural)[poly(HVL-Fur)]and poly(hydrovanilloin–5-hydromethylfurfural)[poly(HVL-5-HMF)].Vanillin was dimerized to a mixtures of meso/DL-hydrovanilloins with 94%meso product by electrochemical reductive coupling in aqueous sodium hydroxide using lead electrodes in quantitative yield.Then sodium hydroxide catalyzed condensation of hydrovanilloin with furfural in water at 80℃for 72 h was used to synthesize poly(HVL-Fur)with Mw=8600 g mol^(−1),PDI=1.28 in 78%yield.Similarly,condensation of hydrovanilloin with 5-hydroxymethylfurfural at 80℃for 48 h produced poly(HVL-5-HMF)with Mw=12,100 g mol−1,PDI=1.27 in 68%yield.poly(HVL-Fur)and poly(HVL-5-HMF)showed similar Tg values of 59℃and 60℃,respectively;whereas melting behaviors are dissimilar with Tm 171℃–173℃and 148℃–182℃,respectively.

关 键 词：VANILLIN hydrovanilloin FURFURAL 5-HYDROXYMETHYLFURFURAL renewable polymers 

分 类 号：O63[理学—高分子化学]