Thus varying the nature of r from primary to secondary to tertiary alkyl results in increasing yields of the hydroxy ethers . 当R按伯、仲、叔烷的顺序递变,则所得羟基醚的产率就随之而增高。
Thus varying the nature of r from primary to secondary to tertiary alkyl results in increasing yields of the hydroxy ethers 当r按伯、仲、叔烷的顺序递变,则所得羟基醚的产率就随之而增高。
Abstract : renews in this paper of the surfactant oil based for surface activies agent of anionic ( alcohol sulfate , sulfonata , acetyl cyanamid , and oleie methyl ester sulfonat etc . ) surface a ctivies agent of nonionic ( apg , alcohol polyxyethnyl ether , alkyl polyoxyethnyl alnyl hydroxyl ether etc . ) , for technique improvement and develcpment trends 文摘:综述了油基表面活性剂中阴离子表面活性剂(醇硫酸盐, -磺酸盐、酰基氰胺、油酸甲酯磺酸盐等) ,非离子表面活性剂( apg 、脂肪醇聚氧乙烯烷基醚、烷基聚氧乙烯烷基羟基醚等)的技术进展及今后发展趋势。