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- The pullulan aminoalkyl ether according to claim 1, wherein the pullulan aminoalkyl ether is in a form of a quaternary alkylamine salts. 根据权利要求1中的普鲁兰氨基烃基醚,它应为自由胺形式或有机、无机盐形式。
- As a result of extensive studies, the present inventors found that a pullulan aminoalkyl ether is positively charged in an aqueous solution. 经过许多研究,本研究发明者发现普鲁兰氨基烃基醚在水溶液中带有正电荷。
- An object of this invention is to provide a cationic pullulan aminoalkyl ether and a method for the preparation thereof. 本发明的目的是提供带有阳离子的普鲁兰氨基烃基醚及其制备方法。
- The pullulan aminoalkyl ether of this invention can be used in various fields as a cationic polymer of significant industrial utility. 本发明的普鲁兰氨基烃基醚可应用于各种领域,例如,可作为具有重要工业用途的阳离子聚合物;
- The organic or inorganic acid salts of pullulan aminoalkyl ether can be prepared by reacting pullulan aminoalkyl ether obtained as above with acids in a conventional manner. 普鲁兰氨基烃基醚的有机盐和无机盐可由普鲁兰氨基烃基醚与酸在常规条件下反应获得。
- The amount of the amines to be reacted with pullulan is 0.001 to 10, preferably 0.01 to 10 moles per glucose unit of pullulan, depending on the amine content of the intended pullulan aminoalkyl ether. 与普鲁兰多糖反应的胺量在0.;001到10摩尔之间,普鲁兰多糖中的葡萄糖单位取决于要制备的普鲁兰氨基烃基醚中的胺含量,最佳范围在0
- A salt of a pullulan aminoalkyl ether according to claim 1, wherein the salt-forming acid is hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, acetic acid, or oxalic acid. 根据权利要求1的普鲁兰氨基烃基醚的盐,其中,由盐形成的酸为盐酸、氢溴酸、硫酸、硝酸、乙酸或者草酸。
- Pullulan aminoalkyl ether is obtained by reacting pullulan with an aminoalkylating agent in a solvent in the presence of an alkali. 普鲁兰氨基烃基醚是由普鲁兰多糖与氨基烃基溶剂在碱性溶剂中反应生成的一种醚,在工业中被大量用作阳离子聚合物。
- A whiff of ether will put you out in a few seconds. 一剂乙醚几秒钟后就会使你失去知觉。
- Pullulan aminoalkyl ether of the present invention wherein -R1- is propylene can also be prepared by using a 3-amino-l,2-epoxypropane derivative of the formula (II 本发明中,普鲁兰氨基烃基醚的-R1-代表丙烯,也可由具有(II)中结构式的3-氨基-1,2-环氧丙烷衍生胺反应制得。
- Today's news goes into the ether and is soon forgotten. 今天的新闻广播听後不久即置於脑後了。
- It was once believed that light waves traveled through the ether. 人们曾经相信光波在以太中穿过。
- Ether was used formerly to put a patient to sleep before an operation. 从前人们在手术前用乙醚来使病人昏睡。
- The hospital smelled of formaldehyde and ether. 医院里充满甲醛和乙醚的味道。
- He went off at the first whiff of ether. 他一吸入醚就失去知觉。
- He lost consciousness at the first whiff of ether. 他一嗅到乙醚便失去了知觉。
- A whiff of ether win put you out ha a few seconds. 吸一口乙醚会使你在几秒钟内昏迷过去。
- A cotton wad that was impregnated with ether. 浸透了醚的棉花团
- Alcohol sophisticated with ether. 掺有乙醚的酒精
- To convert(an alcohol) into an ether. 醚化使(一种醇)转化为醚