Studies of the mesomorphic behavior of bivalent carbohydrate amphiphiles
摘要:
合成了一系列由1,3-双-O-(β-D-吡喃葡萄糖基)-2-O-烷基甘油组成的同源二价糖脂,在甘油主链上带有两个糖头基团和一个烷基链。借助于偏光光学显微镜、差示扫描量热法和X射线衍射方法研究了介晶行为。同源成员表现出近晶A相,与部分双层结构一致。根据实验的 d 间距和计算得出的分子长度,表明双层结构中存在分子的部分叉指。
The present invention generally relates to a process for making polyol ethers by reacting a polyol and a carbonyl compound together in the presence of hydrogen gas and a palladium hydrogenation catalyst on an acidic mesoporous carbon support.
[EN] PROCESS FOR MAKING POLYOL ETHERS<br/>[FR] PROCÉDÉ DE FABRICATION D'ÉTHERS DE POLYOL
申请人:DOW GLOBAL TECHNOLOGIES LLC
公开号:WO2011106194A2
公开(公告)日:2011-09-01
The present invention generally relates to a process for making polyol ethers by reacting a polyol and a carbonyl compound together in the presence of hydrogen gas and a palladium hydrogenation catalyst on an acidic mesoporous carbon support.
POLYOL ETHERS AND PROCESS FOR MAKING THEM
申请人:Tulchinsky Michael L.
公开号:US20100048940A1
公开(公告)日:2010-02-25
New polyol ether compounds and a process for their preparation. The process comprises reacting a polyol, a carbonyl compound, and hydrogen in the presence of hydrogenation catalyst, to provide the polyol ether. The molar ratio of polyol to carbonyl compound in the process is greater than 5:1.
Studies of the mesomorphic behavior of bivalent carbohydrate amphiphiles
作者:Narayanaswamy Jayaraman、Madan Kumar Singh、D. S. Shankar Rao、S. K. Prasad
DOI:10.1039/b618753f
日期:——
A homologous series of bivalent glycolipids constituted of 1,3-bis-O-(β-D-glucopyranosyl)-2-O-alkyl glycerol, bearing two sugar head groups and one alkyl chain on a glycerol backbone, was synthesized. The mesomorphic behaviour was investigated with the aid of polarizing optical microscopy, differential scanning calorimetry and X-ray diffraction methods. The homologous members exhibit a smectic A phase, consistently with a partial bilayer structure. From experimental d-spacing and computationally derived length of the molecules, it is suggested that a partial interdigitation of the molecules is present in the bilayer structure.
合成了一系列由1,3-双-O-(β-D-吡喃葡萄糖基)-2-O-烷基甘油组成的同源二价糖脂,在甘油主链上带有两个糖头基团和一个烷基链。借助于偏光光学显微镜、差示扫描量热法和X射线衍射方法研究了介晶行为。同源成员表现出近晶A相,与部分双层结构一致。根据实验的 d 间距和计算得出的分子长度,表明双层结构中存在分子的部分叉指。