烯

The results suggested that the reaction temperature, the ratio of oil to water, the amount of ethyl cellulose as dispersant, initial monomers composition, the drop manner and the amount of initiator, the stirring speed, the pH of the buffer and the elution process have great influence on the morphology such as diameter of the hydrogel beads.

研究结果表明，采用反相悬浮聚合法，以丙烯酰胺和N-乙烯基吡咯烷酮为共聚单体，N，N'-亚甲基双丙烯酰胺为交联剂，牛血清白蛋白为模板，可以制备BSA印迹共聚物微球；反应温度、水油比、乙基纤维素分散剂用量、初始共聚单体配比、引发剂用量和加入方式、搅拌速度、水相pH值以及后续洗脱条件等均对粒径等微球结构和形态产生明显影响。

Two new methods about preparation of nano-inorganic coated polymer microsphere have been found. The research mainly focused on controlled precipitation of inorganic precurdors onto the polymer microspheres, technique of preparation and size distribution of transition metal oxides and sulfides emulsion particles, nano-paticles''surface modification and the HLB values adjustment, emulsification of oil-soluble monomer in inorganic colloid and emulsion stability, emulsion polymerization that inorganic particles act as medi-phase, the preparation of inorganic nano-particle/polymer hybrid microspheres, preparation of hybrid materials in inverse emulsion, inverse emulsion polymerization of acrylamide and its phase behavior. Inorganic nano-particles we studied concerning TiO2、SiO2、Fe3O4、ZnO、ZnS、Ag and black carbon. Also we studied the morphology and capability of the hybrid materials.

主要内容有：无机物在高分子乳胶模板体系的界面定位沉积研究；过渡金属氧化物、硫化物纳米胶体粒子的制备工艺与胶粒尺寸分布研究；纳米粒子的表面修饰及其亲水亲油平衡值的调制；油溶性单体在无机胶体中的乳化行为与乳液稳定性研究；以无机纳米粒子做中介相的乳液聚合与无机纳米粒子/高分子复合微球制备研究；反相体系中杂化材料的制备；丙烯酰胺水溶液反相乳液聚合、相行为与稳定性；丙烯酰胺反相体系中无机粒子的制备研究；涉及到TiO2、SiO2、Fe3O4、ZnO、ZnS、Ag、碳黑等纳米无机物，系统考察了相关材料的形态与性能，为其应用开发奠定了基础。

In this study,urea inclusion method and molecular distillation method were applied in the purifications of ethyl ester of EPA and DHA.

用尿素沉淀法和分子蒸馏法研究了二十碳五烯酸、二十二碳六烯酸乙酯的分离提纯。

The algicidal performances of monomer dimethyldiallylammonium chloride and a commercial algicide dodecyldimethylbenzylammonium chloride（ 1227 ） were contrasted with that of PDM.

对两种营养化的模拟水体，通过灭藻实验，研究了聚二甲基二烯丙基氯化铵系列样品的静态灭藻性能，考察了加药量、作用时间、特征黏度等因素对灭藻性能的影响规律，并与聚合物单体二甲基二烯丙基氯化铵及市售灭藻剂十二烷基二甲基苄基氯化铵（1227）的灭藻性能进行了对比。

The research development of the reaction of light alkenes from CO 2 hydrogenation and the supply of cheap hydrogen is discussed.

对CO_2加氢合成低碳烯烃反应进行了热力学分析，就近年来关于CO_2加氢合成低碳烯烃反应及廉价氢的供给的研究进展进行了综述。

The content of alkenes in FCC gasoline exceeding the standard and the shortage of propylene are the two problems in Chinese petrochemical industry.

FCC 汽油烯烃含量超标和丙烯短缺是我国石油化工行业面临的两个问题。

The result of potassium malonyloxyborohydride as a new hydroboration reagent reacts with terminal alkenes and alkynes is described.

介绍新的硼氢化试剂丙二酰氧基硼氢化钾与链端烯炔烃的作用，烯烃的硼氢化物在PTC条件下，插入∶CCl2 ，可得饱和羧酸；炔烃则难以与之硼氢化。

A conjugate addition of alkadienyl carbonyl compound with vinyl palladium intermediates which can be formed from oxypalladation of alkynes or allenes was studied, and 1, 6-addition products were obtained.

发现不饱和烃的分子内氧钯化得到的烯基钯中间体能够与不饱和共轭双烯的醛酮反应，选择性的得到1，6-加成产物。

Five parameters in the process, namely initial starch slurry concentration, pH, reaction temperature, reaction time and anhydrides concentration were investigated.

以轻度水解淀粉为原料，以取代度为衡量标准，采用单因素和正交试验方法研究湿法工艺制备辛烯基琥珀酸淀粉酯，从淀粉乳的初始浓度、pH、反应温度、反应时间和酸酐浓度五个方面研究辛烯基琥珀酸淀粉酯最佳制备工艺。

This PhD thesis mainly summarizes the original results on studies of aromatic amide-derived phosphines,including the precatalyst system consisting of Aphos and Pd_2 and the applications for promoting room temperature Suzuki cross-coupling of aryl chlorides and aryl/vinyl bromides,respectively,with aryl/vinyl boronic acids,and alkyl boranes.

本博士学位论文主要总结了对芳基酰胺衍生的膦配体的研究，以及该类型配体与Pd_2组成的催化剂在室温下催化氯代芳烃、溴代芳烃、溴代烯烃分别同芳基硼酸、烯基硼酸及烷基硼试剂进行的Suzuki偶联反应中的表现。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。