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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. 根據權利要求1中的普魯蘭氨基烴基醚，它應為自由胺形式或有機、無(wú)機鹽形式。
- As a result of extensive studies, the present inventors found that a pullulan aminoalkyl ether is positively charged in an aqueous solution. 經(jīng)過(guò)許多研究，本研究發(fā)明者發(fā)現普魯蘭氨基烴基醚在水溶液中帶有正電荷。
- An object of this invention is to provide a cationic pullulan aminoalkyl ether and a method for the preparation thereof. 本發(fā)明的目的是提供帶有陽(yáng)離子的普魯蘭氨基烴基醚及其制備方法。
- The pullulan aminoalkyl ether of this invention can be used in various fields as a cationic polymer of significant industrial utility. 本發(fā)明的普魯蘭氨基烴基醚可應用于各種領(lǐng)域，例如，可作為具有重要工業(yè)用途的陽(yáng)離子聚合物；
- 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. 普魯蘭氨基烴基醚的有機鹽和無(wú)機鹽可由普魯蘭氨基烴基醚與酸在常規條件下反應獲得。
- 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. 與普魯蘭多糖反應的胺量在0.;001到10摩爾之間，普魯蘭多糖中的葡萄糖單位取決于要制備的普魯蘭氨基烴基醚中的胺含量，最佳范圍在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. 根據權利要求1的普魯蘭氨基烴基醚的鹽，其中，由鹽形成的酸為鹽酸、氫溴酸、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. 普魯蘭氨基烴基醚是由普魯蘭多糖與氨基烴基溶劑在堿性溶劑中反應生成的一種醚，在工業(yè)中被大量用作陽(yáng)離子聚合物。
- A whiff of ether will put you out in a few seconds. 一劑乙醚幾秒鐘后就會(huì )使你失去知覺(jué)。
- 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 本發(fā)明中，普魯蘭氨基烴基醚的-R1-代表丙烯，也可由具有(II)中結構式的3-氨基-1,2-環(huán)氧丙烷衍生胺反應制得。
- Today's news goes into the ether and is soon forgotten. 今天的新聞廣播聽(tīng)後不久即置於腦後了。
- It was once believed that light waves traveled through the ether. 人們曾經(jīng)相信光波在以太中穿過(guò)。
- Ether was used formerly to put a patient to sleep before an operation. 從前人們在手術(shù)前用乙醚來(lái)使病人昏睡。
- The hospital smelled of formaldehyde and ether. 醫院里充滿(mǎn)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覺(jué)。
- He lost consciousness at the first whiff of ether. 他一嗅到乙醚便失去了知覺(jué)。
- A whiff of ether win put you out ha a few seconds. 吸一口乙醚會(huì )使你在幾秒鐘內昏迷過(guò)去。
- A cotton wad that was impregnated with ether. 浸透了醚的棉花團
- Alcohol sophisticated with ether. 摻有乙醚的酒精
- To convert(an alcohol) into an ether. 醚化使（一種醇）轉化為醚
