摘要
以一水葡萄糖、月桂醇为原料 ,对甲苯磺酸为催化剂 ,经直接苷化法合成了月桂基葡糖苷 ,对产品结构进行了表征 ,计算了烷基多苷的平均聚合度、α 吡喃糖苷和 β 吡喃糖苷的比例。考察了反应条件对平均聚合度、α 和 β 吡喃糖苷比例及吡喃糖苷与呋喃糖苷比例的影响。结果表明 :通过改变醇糖摩尔比、反应温度、催化剂用量、反应时间等条件可有效控制平均聚合度、α 和 β
Alkyl polyglycosides (APGs) were prepared by p toluenesulfonic acid catalyzed acetalization of glucose with fatty alcohol mixture made of dodecanol,tetradecanol,and hexadecanol.APGs' structures were characterized,the average degree of polymerization (DP value) and the ratio of α D glucopyranoside to β D glucopyranoside were calculated.The effects of reaction conditions on DP value,ratio of α D glucopyranoside to β D glucopyranoside,ratio of glucopyranoside to glucofuranoside were also studied.The results show that the products with differences in DP value,ratio of α to β D glucopyranoside and ratio of glucopyranoside to glucofuranoside are gotten by controlling reaction conditions such as molar ratio of alcohol to glucose,reaction temperature,amount of catalyst,and reaction time,etc.
出处
《现代化工》
CAS
CSCD
北大核心
2002年第4期30-33,共4页
Modern Chemical Industry
关键词
烷基糖苷
平均聚合度
α-吡喃葡糖苷
β-吡喃葡糖苷
非离子表面活性剂
alkyl polyglycosides
average degree of polymerization (DP value)
α D glucopyranoside
β D glucopyranoside
glucofuranoside
