丙烯酸系

According to the synthetic methods study of the quinolones, it is found that the synthetic method of parent ring is of wide use by the condensation from α-substituted aryl formyl-β-substituted aminoacrylic acid and the inner molecular nucleophilic substitution reaction, which is almost suitable for the quinolones preparation of different rings or different substituted groups in 〓-position.

然后，对其合成方法进行了归纳，发现：由α-取代芳甲酰基-β-取代氨基丙烯酸缩合，经分子内亲核取代反应形成喹诺酮母环的合成方法用途非常广，几乎适用于所有不同环系或〓-位是不同取代基的喹诺酮类衍生物的制备。

The gelatinize layer of adhesive is divided into rubber and acrylic.

涂胶层所用的胶黏剂不合橡胶不系和丙烯酸不系两栽。

This paper presents summary on the features of preparation of coal water slurry with three kinds of additives such as xylon,acrylic acid and naphthalene series additives,and the test of the slurry in Texaco gasifier .

对木质素、丙烯酸、萘系 3种水煤浆添加剂制得煤浆的特性及煤浆在 Texaco 气化炉上的试验情况进行了总结，认为在 Texaco气化条件下，木质素与丙烯酸可作为水煤浆的添加

The macromer, methoxy polyethylene glycol methacrylate, used for polycarboxylate based superplasticizer was prepared by esterification of methacrylic acid and methoxy polyethylene glycol.

以聚乙二醇单甲醚和甲基丙烯酸为主要原料，通过酯化反应制备聚羧酸系减水剂大单体聚乙二醇单甲醚甲基丙烯酸酯。

Our company mainly styrene, acrylic acid series, acid, base, weak acid, weak base, catalysis, chelation, inert ion exchange resin, the key products used in softened water, desalination water exchange resins; Condensate Polishing resin; food fermentation industry, bleaching, adsorption resin, petroleum, chemical, medical, chelate resin series resin and catalyst as well as supporting a series of packing and other water brands, there are four series, more than 20 varieties of ion exchange resin.

我公司主要有苯乙烯系、丙烯酸系列，强酸、强碱、弱酸、弱碱、催化、螯合、惰性离子交换树脂，目前主要产品应用于软化水、除盐水处理交换树脂；凝结水精处理树脂；食品、发酵行业脱色、吸附专用树脂、石油、化工、医学、鳌合系列树脂和催化剂专用树脂以及配套水处理的系列填料等多种牌号，目前有四大系列、二十余个品种离子交换树脂产品。

Shanghai exchange resin resin plant special enterprises in China are domestic professional research and development, application, management services, OEM resin enterprise as a whole.major enterprises in China have Styrene, acrylic acid series, strong acid, strong base, weak acid, weak base, chelating , inert ion exchange resins, special enterprises in China for many years with several well-known enterprises to explore the application of ion exchange resins, the key products used in softened water, desalination water treatment-exchange resins; condensate treatment resin; food, fermentation industry Decoloration, dedicated Absorption resin, petroleum, chemical, medical, chelate resin and catalyst series dedicated resin as well as ancillary treatment, such as a series of packing products, such as a variety of grades.

上海汇脂树脂厂特华企业是国内专业研究开发、应用、管理服务、OEM为一体树脂企业。特华企业主要有苯乙烯系、丙烯酸系列，强酸、强碱、弱酸、弱碱、螯合、惰性离子交换树脂，特华企业多年来与多家著名企业探讨离子交换树脂应用，目前主要产品应用于软化水、除盐水处理交换树脂；凝结水精处理树脂；食品、发酵行业脱色、吸附专用树脂、石油、化工、医学、鳌合系列树脂和催化剂专用树脂以及配套水处理的系列填料等多种牌号等系列产品。

The synthesization technics of MPEG- MAA was studied in this paper,which is an important intermediate used for preparation of polycarboxylate superplasticizer.

本文对制备聚羧酸系减水剂的重要中间体——甲基丙烯酸聚乙二醇单甲醚酯的合成工艺进行了研究，考察了反应时间、催化剂对甲苯磺酸的用量、阻聚剂对苯二酚的用量、反应温度及甲基丙烯酸与聚乙二醇单甲醚的用量比对酯化率的影响。

The study investigats the mass transport and hydrolysis behavior for poly in various concentrations of methanol/ tin chloride (SnCl2·2H2O) cosolvent between 40℃ to 60℃. Furthermore, by using the successfully manufactured poly/ tin dioxide nano composites, the mechanical, optical and thermal properties are investigated.

中文摘要本研究系探讨在不同质传温度(40℃~60℃)下，聚甲基丙烯酸甲酯於不同浓度之氯化锡/甲醇潜溶剂(0g/100g、3g/100g、5g/100g、7g/100g及9g/100g)中的质传及水解行为，并利用成功制得之聚甲基丙烯酸甲酯/二氧化锡奈米复合材料，进一步探讨奈米复合材料之光学性质、机械性质及热性质。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。