苯乙二醇

The title compound benzophenone hydrazone was prepared by the reaction of 80% hydrazine hydrate with benzophenone in ethylene glycol.

以 8 0 %水合肼和二苯甲酮为原料，在乙二醇中回流 3h得二苯甲酮腙，收率为 95 1%。

BIO-BEAUTE commits to selecting only 100%pure natural extracts: no silicone, no PEG, no petrochemical derivatives, no genetically modified organisms, no artificial coloring agents, no parabens, no EDTA, no formaldehyde, no products with ethoxyl derivatives, no phenoxyethanol.

BIO-BEAUTE 保证选择100%的纯净天然提取物：无硅胶、无聚乙二醇、无石油化学衍生物、无转基因有机体、无人工着色剂、无苯甲酸酯类、无乙二胺四乙酸、无甲醛、无羟乙基衍生产品，无无苯氧乙醇。

ABSTRACT Immobilized penicillin acylase (from E.coli) was used to catalyze 7 phenylacetamido 3 E propenyl cephalosporanic acid hydrolyzation into 7 amino 3 E propenyl cephalosporanic acid. Then, trans APRA was acylated with hydroxyethyl ester of 4 hydroxy D phenylglycine to obtain trans cefprozil.

以7 苯乙酰氨基 3 E 丙烯基 3 头孢菌素 4 羧酸为原料，在青霉素酰化酶作用下，首先酶法水解得到3 E 丙烯基 3 头孢菌素 4 羧酸，过滤固相酶，滤液调pH分离得到反式APRA固体；在青霉素酰化酶作用下，反式APRA再与对羟基苯甘氨酸乙二醇酯缩合，得到反式头孢丙烯；酶法合成所得的产品与进口反式头孢丙烯对照品一致。

Curwood's Dave Engen, market manager for cheese, describes the Curpolene 7202 film as a 2.6-mil, two-ply, coextruded lamination of oriented polyethylene terephthalate, laminated to a proprietary ethylene vinyl alcohol/nylon coex that offers superior resistance to heat and abuse, as well as superior machinability, and barriers and esthetics for nonrespiring sliced cheeses like Provolone and Cheddar.

curwood的戴夫Engen的，市场经理，奶酪，描述curpolene 7202电影作为一个2.6万桶， 2层，共挤层压面向聚对苯二甲酸乙二醇酯，层压到一个专有的乙烯-乙烯醇/尼龙国际会展中心，提供优越的抗高温和虐待，以及优越的可加工性，和障碍，美学为nonrespiring切片奶酪一样， provolone和干酪。

The film, converted by Packall Packaging, consists of an outer layer of polyethylene terephthalate, a middle one of nylon and an inner sealant layer of linear low-density polyethylene blended with ethylene vinyl alcohol.

影片中，转换Packall包装，由外层的聚对苯二甲酸乙二醇酯，一个中等的一个尼龙和内密封层的线性低密度聚乙烯混合乙烯醇。

A series of poly/PET-copolyester polymer blends and fibers from these blends are preparated . The polymer blends are : PET/CDP(CDP: cation dye dyeable polyester or high pressure type cation dye dyeable polyester); PET/ECDP(easy cation dye dyeable polyester or normal pressure type cation dye dyeable polyester); PET/ECDP/polyethyleneglycoland PET/CGP. The transition temperature, crystalline structure, rheological behavior and thermal stability were studied .

本文制备了聚对苯二甲酸乙二醇酯／高压型阳离子染料可染聚酯；PET／常压型阳离子染料易染聚酯；PET／ECDP／聚乙二醇和PET／CGP一系列PET／PET-共聚酯共混物及纤维，对其转变温度、结晶性能、流变性能及热稳定性进行了研究。

Then,the core molecule was used as a coupling agent to condensate with polyethylene glycolsof different molecular weight or polyethylene glycol monomethyl etherin the presence of stannous octoate as catalyst and diphenyl ether as azeotropic agent to remove water.

在辛酸亚锡催化下，以二苯醚为共沸脱水剂，将三官能度小分子TMP-SK3作为偶联剂，进一步与不同分子量的端羟基聚乙二醇和聚乙二醇单甲醚缩合，减压下共沸脱水，制备了以TMP-SK3为核，PEG或PEGm为臂的三臂星形大分子。

The polymer particles were prepared by copolymerization of phthalic aldehyde, allyl mercaptan and ethylene glycol dimethacrylate after heating. The fluorescence intensity of the polymer particles was very weak.

利用邻苯二甲醛与烯丙基硫醇、乙二醇二甲基丙烯酸酯在偶氮二异丁腈引发下热聚合制得了一种新型聚合物颗粒。

Methods: After the sample being digested, because of ethylenediamine-hydrochloric acid, aluminium, chrome azurol S, the polyethylene glycol octyl phenyl ether together with hexadecylpyridine bromide form a steady blue quaternion system, whose absorbance and aluminium content is direct ratio within some consistence range.

样品经消化后，在乙二胺－盐酸缓冲介质存在下，铝与铬天青S和聚乙二醇辛基苯醚及溴代十六烷基吡啶形成稳定蓝色四元体系，在一定浓度范围内，其吸光度与铝含量成正比。

In this study, Japanese cedar, Ma bamboo and Makino bamboo were liquefied in polyethylene glycol/glycerol co-solvent with H2SO4 or HCl as catalyst. The liquefied woody materials were blended with PMDI (4,4'-Diphenylmethane diisocyanate;MDI) to prepare the PU foams. The effects of preparation conditions of PU resin on the properties of PU foams were investigated.

中文摘要本研究将柳杉(Cryptomeria japonica； Japanese cedar)、麻竹(Dendrocalamus latiflorus； Ma bamboo)及桂竹(Phyllostachys makinoi； Makino bamboo)等木质材料以聚乙二醇及丙三醇之混合液为溶剂，H2SO4及HCl为催化剂进行液化处理，并将其液化木质材料与4，4'-二苯甲烷二异氰酸酯反应制造聚胺基甲酸酯发泡体，探讨PU树脂调配条件对PU发泡体性质之影响。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新