乙烯醇

Molecularly imprinted polymers of sulfamethazine(SM 2 ) were prepared with silica gel as a sacrificial material, methacrylic acid and 4 vinylpyridine(4 Vp) as functional monomers, glycol dimethacrylate as crosslinker. The polymer properties were investigated by static adsorption experiments. Scatchard analysis shows that the adsorption ability of MAA MIP is superior to that of 4 Vp MIP. The dissociation constant of MAA MIP is 9 59×10 -4 mol/L. The value of apparent binding a...

以磺胺二甲嘧啶为模板分子，分别用甲基丙烯酸和4乙烯基吡啶为功能单体，二甲基丙烯酸乙二醇酯为交联剂，采用牺牲硅胶法合成了磺胺分子印迹聚合物，通过静态吸附实验，系统研究了不同单体对聚合物识别性能的影响；Scatchard分析表明，以甲基丙烯酸为单体的聚合物具有较高的吸附能力，其离解常数Kd为959×10-4mol/L，最大表观结合位点数Qmax为3070μmol/g。

Three methods are used to prepare molecular imprinted polymers,which include conventional bulk technique or polymerization with ultraviolet initiated in low temperature and polymerization with silica-gel as sacrificial materials. In the polymerization procedure , Sulfamethazine(SM2)and Sulfisoxazole were used as target template molecules, methacrylic acid and 4-vinylpyridine(4-VP) and acrylamide were selected as functional monomers, ethylene glycol dimethacrylate as crosslinker, azobisisobutyronitrile was used as initator.

主要工作如下：首先，以磺胺异噁唑和磺胺二甲嘧啶为模板，分别以4-乙烯基吡啶，甲基丙烯酸，丙烯酰胺为功能单体，以二甲基丙烯酸乙二醇酯为交联剂，偶氮二异丁腈为引发剂，采用了传统方法(60℃恒温水浴)、牺牲硅胶法及低温紫外光聚合法等三种方法合成了一系列的磺胺类药物印迹聚合物。

The objectives of this study are to investigate the cavitation intensity and acoustic pressure for various liquids of pure water, tap water, ethanol, ethylene glycol and tetrachloroethylene.

本研究针对纯水、自来水、乙醇、乙二醇、四氯乙烯及丙酮等四种化学溶液进行超音波音压及空泡强度的调查。

A kind of blue encapsulated electronic ink microcapsule was prepared by in situ deposition method utilizing urea and formaldehyde solution as aqueous phase and tetrachloroethylene dissolved with oil solvent blue dye as oil phase under different pH condition and Polyvinyl Alcoholand gelatin as modifying agent,respectively.

以溶有油溶蓝的四氯乙烯为油相，以甲醛和尿素溶液为水相，分别利用明胶和聚乙烯醇作为改性剂，在不同pH条件下，利用一步原位沉积法制备出脲醛树脂微胶囊，方便快捷。

Polyurethane emulsion petroleum emulsion breaking agents are prepared from tolyl diisocyanate,α,α-dimethylolpropionic acid and polypropylene glycol or glycerine ...

聚氨酯乳液石油破乳剂是由α，α-双羟甲基丙酸、甲苯二异氰酸酯分别与聚丙二醇、单甘酯、聚氧乙烯聚氧丙烯聚合物通过加成反应制得的。

This article studied dispersion polymerization of the vinyl acetate in alcohol/water medium, choose potassium persulphate-sodium bisulfite as oxidized-reduction initiator.

研究了醋酸乙烯酯在醇／水介质中以过硫酸钾－亚硫酸氢钠为氧化－还原引发剂的分散聚合。

A study was made on the application of dimethyl silicone oil ,propanetriol and 1,2 propanediol to decrease the modulus of MVQ vulcanizate.

探讨了用增塑剂二甲基硅油、丙三醇和1，2－丙二醇降低甲基乙烯基硅橡胶硫化胶模量的途径。

Quick vulcanization adjuvant, and said adjuvant includes dithioalchol benzothiazole, dibenzothiazole disulfide, tetra methylthiuram disulfide, zinc methyl phenyl dithio carbamate and ethyleen thiourea.

助剂是：二硫醇基苯并噻唑、二硫化二苯并噻唑、二硫化四甲基秋兰姆、甲基苯基二硫代氨基甲酸锌、乙烯硫脲。

Purposes:3-methoxy - Butanoic alcohol used for high boiling point solvents, used nitro - cellulose paint, epoxy coatings, brake oil viscosity regulator, printing ink solvents, cutting oils and dyes, pigments, pesticides, etc will secure vinyl chloride solvent.

用途：3-甲氧基丁醇用作高沸点溶剂，用于硝基纤维素漆、环氧树脂涂料、刹车油粘度调节剂、印刷油墨溶剂，切削油以及染料、颜料、农药、氯乙烯稳妥定剂等溶剂。

The polymerization reacts from the inverse emulsion . Selecting white oil as continuous medium , Span60 and TX-10 as the complex emulsifier , AM-01﹑(NH4)2S2O4 and NaHSO3 as new-type complex initiator , the copolymerization of dimethylamino ethyl acrylate methyl chloride/acrylamide was developed . The effects of the concentration of monomer﹑emulsifier and initiator﹑ temperature﹑reaction time and pH on the molecular weight﹑intrinsic viscostity﹑conversion ratio and cation degree of copolymer were studied .

以反相乳液为初始聚合体系，油酸失水山梨醇酯Span60和辛基酚聚氧乙烯醚TX-10构成复配乳化剂，白油为连续介质，AM-01、过硫酸铵和亚硫酸氢钠组成新型复合引发体系，进行丙烯酰胺/（2-甲基丙烯酰氧乙基）三甲基氯化铵的反相准微乳液共聚合，研究了单体浓度、乳化剂、反应温度、反应时间、pH等因素对聚合产品分子量、特性粘数、转化率及阳离子度的影响。

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。