Sixteen title compounds were synthesized, twelve of which are new ones. Their structures were determined by 1H NMR, IR and MS, the refractive indices or melting points were measured. Odors of all the title compounds w...Sixteen title compounds were synthesized, twelve of which are new ones. Their structures were determined by 1H NMR, IR and MS, the refractive indices or melting points were measured. Odors of all the title compounds were evaluated and the structure-odor relationship was briefly discussed.展开更多
Ten endo-a-substituted-bicyclo[2.2.2]octenyl(and octanyl)methanols were synthesized,their odors were evaluated. We have previously reported the syntheses and structure-odor relationship of two series of endo-bicyclo[2...Ten endo-a-substituted-bicyclo[2.2.2]octenyl(and octanyl)methanols were synthesized,their odors were evaluated. We have previously reported the syntheses and structure-odor relationship of two series of endo-bicyclo[2.2.1]heptenyl(and heptanyl)methanols^(1.2).In order to study the effect of the bicyclic skeleton on odor,ten of the title compounds have been synthesized.展开更多
The research study properties of the starch-based foam from mixed between tapioca starch and octenyl succinate starch (OSA starch), have addition alpha-chitin prepared by hot compression molding method. Tapioca starch...The research study properties of the starch-based foam from mixed between tapioca starch and octenyl succinate starch (OSA starch), have addition alpha-chitin prepared by hot compression molding method. Tapioca starch with 50% OSA starch was investigated. For composite foam tapioca starch mixed by adding alpha-chitin at 5% - 30% of starch weight, it was found that water absorption was reduced. The higher alpha-chitin content in blending foam, the denser of foam structure observed which resulted in increasing of the foam density. The maximum bending stress of composite starch was decreased, but increasing the maximum bending strain.展开更多
基金Supported hy the National Natural Science Foundation of China
文摘Sixteen title compounds were synthesized, twelve of which are new ones. Their structures were determined by 1H NMR, IR and MS, the refractive indices or melting points were measured. Odors of all the title compounds were evaluated and the structure-odor relationship was briefly discussed.
文摘Ten endo-a-substituted-bicyclo[2.2.2]octenyl(and octanyl)methanols were synthesized,their odors were evaluated. We have previously reported the syntheses and structure-odor relationship of two series of endo-bicyclo[2.2.1]heptenyl(and heptanyl)methanols^(1.2).In order to study the effect of the bicyclic skeleton on odor,ten of the title compounds have been synthesized.
文摘The research study properties of the starch-based foam from mixed between tapioca starch and octenyl succinate starch (OSA starch), have addition alpha-chitin prepared by hot compression molding method. Tapioca starch with 50% OSA starch was investigated. For composite foam tapioca starch mixed by adding alpha-chitin at 5% - 30% of starch weight, it was found that water absorption was reduced. The higher alpha-chitin content in blending foam, the denser of foam structure observed which resulted in increasing of the foam density. The maximum bending stress of composite starch was decreased, but increasing the maximum bending strain.
