己酸

Kinetics characteristics of α- pinene isomerization catalyzed by activated carbon supported phosphotungstic acid was studied .

研究了活性炭固载磷钨酸催化α－蒎烯的异构化反应的动力学特征，研究表明，以环己烷作溶剂，α－蒎烯在活性炭固载磷钨酸上的异构化服从准一级动力学模型，其反应的表观活化能为100。

The density, binding energy and radical distribution function of HTPB/plasticizers blends and binder hydroxyl-terminated polybutadiene, and plasticizer dioctyl sebacate, dioctyl adipate, dibutyl phthalate, dioctylphthalate were calculated by molecular dynamics simulation for evaluating compatibility of HTPB and plasticizers.

为评价端羟基聚丁二烯与增塑剂相容性的优劣，采用分子动力学模拟方法对纯HTPB、增塑剂癸二酸二辛酯、己二酸二辛酯、邻苯二甲酸二丁酯、邻苯二甲酸二辛酯及HTPB与增塑剂组成的共混物的密度、结合能和径向分布函数等进行了计算。

The air-dried unsaturated polyester putty was synthesized by linseed oil which is a cheap and regenerable material instead of expensive adipic acid and sebacic acid.

用廉价的可再生资源-亚麻油代替价格昂贵的己二酸、癸二酸合成原子灰用不饱和聚酯。

CNTs were first pre-treated using acid solution (HNO3) to obtain CNTs functionalized with carboxylic groups. Subsequently, the stearyl alcohol was grafted onto CNT with the assistance of dehydrating agent, N,N'-dicyclohexyl-carbodiimide. Excellent dispersion in organic solvents such as acetone, THF, and chloroform was found for the modified CNTs (CNT-C18). In addition, the PBS/CNTs nanocomposites were then prepared through simple melt-blending. Mechanical properties, thermal behavior, conductivity of resultant polymer/CNT composites were investigated. The results show that excellent dispersion of nanotubes in the PBS matrices was achieved.

为了增加多壁奈米碳管在复合材料中的分散性，将碳管表面进行化学修饰，首先将多壁奈米碳管浸入HNO3溶液中，进行酸化，使碳管表面带有羧酸的官能基，然后再加入十八烷醇，在温和的条件下，藉由N，N'-二环己基碳二亚胺(N，N'-dicyclohexyl- carbodiimide，DCC)脱水剂脱水，使碳管和十八烷醇之间产生酯基的化学键结，改质后的碳管可以分散在acetone、THF、chloroform…等有机溶剂中，结果显示成功的利用DCC脱水剂完成碳管的改质。

Flame—retardant resin was prepared by the condensation and polymerization of phosphoric acid, trihydroxy methyl propane and epoxy chloropropane,the resin was then reacted with hexane diacid and diglycol under certain condition ,resulting in polyol containing 1.5% P and 17— 18% polyester polyol, which was foamed with polyisocyanate, water and catalyst by one— step method, producing fire...

通过磷酸、三羟甲基丙烷和环氧氯丙烷的缩合和聚合反应制得阻燃树脂，然后将它与己二酸、一缩二乙二醇在一定条件下反应制得含P1.5%和含Cl17～18%的聚酯多元醇，再将它与多异氰酸酯、水、催化剂等组分采用一步法发泡工艺制得阻燃聚氨酯软泡塑料。

Flame— retardant resin was prepared by the condensation and polymerization of phosphoric acid, trihydroxy methyl propane and epoxy chloropropane,the resin was then reacted with hexane diacid and diglycol under certain condition ,resulting in polyol containing 1.5% P and 17— 18% polyester polyol, which was foamed with polyisocyanate, water and catalyst by one— step method, producing fire—resistant PU soft foam.

通过磷酸、三羟甲基丙烷和环氧氯丙烷的缩合和聚合反应制得阻燃树脂，然后将它与己二酸、一缩二乙二醇在一定条件下反应制得含P1.5%和含Cl17～18%的聚酯多元醇，再将它与多异氰酸酯、水、催化剂等组分采用一步法发泡工艺制得阻燃聚氨酯软泡塑料。

A derivative of iniositol, phytic acid, is an important syorage compound in seeds, which is believed to be converted during germination to inositol, and thence to glucuronic and uronic acids for the synthesis of cell-wall components.

这种己醇6磷酸在种子中是重要的贮藏化合物，在种子萌发过程中可以转化为肌醇，继而形成葡萄糖醛酸和糖醛酸，以合成细胞壁的组分。

In addition, a further study was made of the technique of extraction, isolation and purification of GLA. The factional extraction used in the laboratory with n-hexane and ethanol was changed into the whole extraction of 6〓 solvent, which simplified production technique and reduced cost of production. The fungal lipid extracted from the fermentation in the medium-scale test was concentrated by the urea adducting method with methanol as solvent, at 75～80℃ for 3 hours. After GLA had been adducted twice, the content of GLA came up to 84. 25%, around a twelfth as much as the original concentration.

并对γ—亚麻酸的提取和分离纯化工艺进行了研究，将实验室中用正己烷和乙醇分步抽提的工艺改为用6〓溶剂一步抽提技术，从而简化了生产工艺，降低了生产成本；采用脲素包合法，以甲醇作为溶剂，温度控制在75～80℃，包合时间为3h，对中试发酵所提取的菌油进行了浓缩，γ—亚麻酸两次包合后，GLA含量达到84.25%，比原浓度浓缩了近十二倍。

Segmented polyester polyurethaneurea based n 4, 4'-disphenylmethane diisocyanate, ethylene diamine and polybutylene adipate elastomers and their deuterated polymers were 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的嵌段聚酯型聚脲氨酯弹性体及其氘化產物进行了研究。

Polysaccharides built from more than one type of sugar, mainly the hexoses and the pentoses.

主要包括己醣和戊糖，半乳糖醛酸和葡萄糖醛酸也是其组分。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。