二酸

Effect of ratio of dimethylol propionic acid to polybutylene adipate glycol on Tg and basic properties of films was studied.

考察了二羟甲基丙酸/聚己二酸丁二醇酯二醇比例对Tg以及膜基本性能的影响。

To authors' knowledge, dimethyl adipate, diisobutyl succinate and benthothiazole have never been reported in previous herbivore insect-plant systems.

己二酸二甲酯、丁二酸二异丁酯、苯骈噻唑在以前的昆虫-草本植物系统中未见报道。

The studies segmented polyester polyurethaneurea elastomers based on 4,4'-diphenylmethane diisocyanate, ethylene diamine and polybutylene adipate (M. W. 1975 and M. W. 1228) were studied by means of IR spectrascopy.

用红外光谱法对基於4，4'-二苯基甲烷二异氰酸酯、乙二胺和聚己二酸丁二醇酯（分子量分别为1975和1228）的嵌段聚脲氨酯弹性体进行了研究。

Hydrogen bonding in hard segment domains of segmented polyester polyurethaneurea based on 4,4'-diphenylmethane diisocyanate, ethylene diamine and polybutylene adipate(M. W. 1975 and M. W. 1228) was studied by means of IR spectroscopy.

用红外光谱法对基於4，4'-二苯基甲烷二异氰酸酯、乙二胺和聚己二酸丁二醇酯（分子量分别为1975和1228）的两系列嵌段聚酯型聚脲氨酯硬段微区中的氢键化进行了研究。

The subcutaneous administration of sodium dimercaptosuccinate at a dose of 1500 mg/kg immediately after the intraperitoneal injection of trivalent antimonyl ammonium gluconate increased the LD_(50) of the latter from 90—112 mg/kg to 1300—1460 mg/kg.

皮下注射二巯基丁二酸钠1500毫克/千克，司将小鼠一次腹腔注射锑铵的半数致死量从90—112毫克/千克提高至1300—1460毫克/千克。静脉注身锑~(124)铵予家兔后，如立刻经同一途径注射二巯基丁二酸钠，亦可降低锑铵的急性毒性。

According to the regular condensation polymerization principle, a certain amount of amino terminated polyether D230 and a certain amount of divinyl three amine are mixed uniformly by water, and then a certain amount of hexanedioic acid is added in and stirred for dissolving.

本发明属于工业水处理技术领域，具体涉及一种抑制水中二氧化硅/硅酸盐垢沉积的非离子型聚合物及其制备方法，该聚合物是一种含具有醚键、仲胺键、肽键结构的非离子型共聚物，具体为己二酸/端氨基聚醚/二乙烯三胺共聚物，按照常规的缩聚反应原理，首先用水将一定量的端氨基聚醚D230和一定量的二乙烯三胺混合均匀，然后加入一定量的己二酸并搅拌使其溶解。

Vapor-liquid equilibrium data for maleic anhydride and its absorption solvents are important for developing and researching the MAN production process. Isothermal VLE data for MAN and di-n-butylsebacate binary system at 413.15, 433.15 and 453.15 K were determined with a modified ebulliometer in this work.

利用改进的沸点仪测定了顺酐－癸二酸二丁酯二元体系在413.15，433.15和453.15 K下的等温气液平衡数据以及纯癸二酸二丁酯和顺酐的饱和蒸气压数据。

II. construction scale: annual treatment capacity of 15 thousand tons castor seeds to extract 7 thousand tons oil, annual yield of 7 thousand tons methyl ricinoleate, 2 thousand tons nylon 11 and 3.5 thousand tons castor oil fatty alcohol; along with the following by-products: 1.4 thousand tons medicinal glycerol, and 5 thousand tons of heptaldehyde alcohol, mono-octyl sebacate and dibutyl sebacate respectively.

二、项目建设规模：年处理l.5万吨蓖麻籽、榨油0.7万吨、年产蓖麻酸甲酯0.7万吨、0.2万吨尼龙11和0.35万吨蓖麻油脂肪醇；副产品药用甘油0.14万吨、庚醛醇、癸二酸辛酯和癸二酸二丁酯各0.5万吨。

The mortality of mice from tartar emetic was observed after concomitant injections of 5 testing drugs (procaine-HCl, sodium phenyl acetate, sodium αα'-dimercaptoadipate, sodium mercaptosuccinate and sodium thiosulfate).

二普鲁卡因、苯乙酸钠、aa′-二巯基己二酸钠及巯基丁二酸钠能使小鼠腹腔注射吐酒石急性及亚急性中毒死亡率明显地减低，而硫代硫酸钠则无效。

High relative molecular mass poly was synthesized by direct polycondensation of succinic acid and 1,4-butanediol in decalin solution at 140～200 ℃ for 12～14 h.

以丁二酸和丁二醇为原料，十氢萘为溶剂，在140~200℃反应12~14 h，进行直接聚合，合成了高相对分子质量聚丁二酸丁二醇酯。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。