查询词典 methylene-succinic acid

In this paper, a cyclic ketene acetal of 2-methylene-1,3-dioxepane was prepared. And then biodegradable SAP with C-O-C in the backbone was synthesized by Ring-Opening copolymerization of MDO with acrylic acid.

目前市场上使用的高吸水性树脂几乎都是聚丙烯酸类，但其生物分解性差，易造成地下水及土壤环境污染，可生物降解高吸水性树脂的制备引起了学术界极大的关注。

Three new-type charge-transfer salts were synthesized based on the reaction of three kinds of basic dye (crystal violet, safranine T, methylene blue BB, respectively) and tungstophosphoric acid of Keggin structure.

报道了用Keggin结构的磷钨酸与碱性染料结晶紫、碱性藏红T和碱性湖兰BB反应形成的3种新型电荷转移盐。

Meta analysis shows, only sex of 3 heredity much condition and male not Yo is remarkable and relevant, namely AZFc division share is short of break, androgen accepts put oneself in another's position genen length and methylene 4 hydrogen folic acid is reductive enzymatic gene much condition.

Meta分析显示，仅有3个遗传多态性和男性不育显著相关，即AZFc区部分缺失、雄激素受体基因n长度和亚甲基四氢叶酸还原酶基因多态性。

Copolymerize methacrylic acid 3(4′-N,N-dimethylamino) ketone xanthate and acrylamide were copolymerized with N,N-methylene bisacrylamide,and then combined with silane ethylene group in the form of covalent bond on the quartz glass shee t to be made into a sensor,to determine ethanol.

将甲基丙烯酸3-(4′-N，N-二甲氨基)黄酮酯和丙烯酰胺、N，N′-亚甲基双丙烯酰胺共聚并共价键合在硅烷化的含乙烯基团的石英玻片上，制成了可测定乙醇的传感器。

Pilot-plant test for synthesis of poly/attapulgite superabsorbent composite was carried out using acrylic acid and attapulgite as main raw materials,N,N′-methylene-bisacrylamide as crosslinker and composite composed of V-50 and ammonium persulphate as initiator by solution polymerization in a 100 L pilot-plant test equipment.

在100 L的中试设备上，用水溶液聚合法，以丙烯酸和凹凸棒黏土为主要原料，以N，N-亚甲基双丙烯酰胺为交联剂，V-50和过硫酸钾复配作为引发体系，进行了聚丙烯酸/凹凸棒复合保水剂的中试放大实验。

The initial pH of reaction solution had little influence to the degradationefficiency, but in alkali solution, methylene blue degraded easier than in acid or neutral solution.

亚甲基蓝降解率随超声时间的增加而增加；溶液的pH值的变化对亚甲基蓝降解的影响不大，但是在中性溶液中，其降解率稍高于酸性或碱性溶液中。

Castor seeds were degreased with 3 kinds of solvents including petroleum ether, aether and methylene chloride, and ricins were extracted from the defatted castor cake with acetic acid solution. And the rat-killing activities of 3 kinds of ricins were compared in the rat-killing activity test.

方法］用石油醚、乙醚、二氯甲烷3种溶剂分别对蓖麻粗籽进行脱脂后，用醋酸水溶液从脱脂的蓖麻饼中提取蓖麻毒蛋白，通过杀鼠活性试验比较3种蓖麻粗毒蛋白的杀鼠活性。

Castor seeds were degreased with 3 kinds of solvents including petroleum ether,aether and methylene chloride,and ricins were extracted from the defatted castor cake with acetic acid solution.

方法用石油醚、乙醚、二氯甲烷3种溶剂分别对蓖麻粗籽进行脱脂后，用醋酸水溶液从脱脂的蓖麻饼中提取蓖麻毒蛋白，通过杀鼠活性试验比较3种蓖麻粗毒蛋白的杀鼠活性。

Chloroacetic acid,chloromethyl ether,acetone,mphenylenediamine,butyl acetate,ethyl acetate,methylene chloride,ethylene dichloride,dioxane.

氯乙酸，氯甲醚，丙酮，间苯二胺，醋酸丁酯，醋酸乙酯，二氯甲烷，二氯乙烷，二氧六环。

High absorption and retentions clinoptilolite /Starch/ PAANa composite was synthesized by water-solution copolymerization with clinoptilolite and acrylic acid as principal raw materials,with N N-methylene-bis-acrylamideand as crosslinker, and with potassium persulphate as initiator .

以丙烯酸、斜发沸石为主要原料，以N，N'-亚甲基双丙烯酰胺为交联剂、过硫酸钾为引发剂，采用水溶液聚合法合成了斜发沸石/淀粉/聚丙烯酸高吸水保水性复合材料。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。