查询词典 maleic acid

The new preparation method of polymaleic acid from maleic anhydride by plasma-initiated polymerization in aqueous solution was studied.

本文研究了用等离子体引发马来酸酐水溶液聚合制备聚马来酸的新工艺。

Agent TJ-201 is an organic phosphonocarboxylic acid containing maleic group, p hosphonic group, and ethoxyl group etc.

TJ-201是一种含马来酸基、磷酸亚基、氧乙烯基等的膦基聚羧酸。

Hrough copolymerization of styrene with few quantity of methacrylic acid, maleic anhydrate or 4-vinyl pyridine respectively and of butyl methacrylate with maleic anhydrate, the functional groups carboxyl, simple anhydride and pyridyl have been introduced respectively to the chain of PS or PBma.

通过苯乙烯与少量的甲基丙烯酸、马来酸酐或4—乙烯基吡啶的共聚及甲基丙烯酸正丁酯与马来酸酐的共聚，可在聚苯乙烯及聚甲基丙烯酸丁酯链上分别引入功能基因羧基、酸酐基和吡啶基对共聚物进行了红外光谱、酸碱滴定、元素分析、玻璃化转变温度、粘度及紫外光谱的测定。

Since 2002, Institute of Coal Chemistry, Chinese Academy of Sciences has been developing a new technology to prepare high-purity glyoxylic acid by maleic anhydride ozonation, which has been completed, and now the research of the downstream products of glyoxylic acid including vanillin, heliotropin and the substituted mandelic acid is underway.

中科院山西煤化所从2002年开始进行研究，完成顺酐臭氧化法制备高纯乙醛酸新技术工艺的开发，现正进行乙醛酸下游产品香兰素、洋茉莉醛、取代扁桃酸的技术研究。

Our main product are as follows: soda ash, phosphoric acid, selenium powder, pentaerythritol, phthalic anhydride, maleic anhydride, tartaric acid, glycerine, sodium acetate, lauric acid Lane Company by virtue of modern mode of operation, strict management system, excellent quality, reasonable price and professional service system, would like to warmly at home and abroad to cooperate sincerely with old and new customers, create brilliant!

我司主打产品如下：纯碱，磷酸，硒粉，季戊四醇，苯酐，顺酐，酒石酸，甘油，醋酸钠，月桂酸莱恩公司凭借现代化的运作模式、严谨的管理体制、优良的质量、合理的价格、专业化的服务体系，愿热忱与国内外新老客户精诚合作，共创辉煌！

Using Maleic anhydride and 1-Octadecanol as raw material, synthesize octadecanol maleic monoester.The influence of p-toluence sulphonic acid were investigated.

以马来酸酐和十八醇为原料合成了马来酸单十八酯，研究了催化剂对甲基苯磺酸的加量产物的影响。

The di- octadecanol maleic was prepared with maleic anhydride and octadecanol as raw materials and p-toluene sulphonic acid as catalyst.

以马来酸酐和十八醇为原料，以对甲苯磺酸为催化剂，制备马来酸双十八醇酯。

Water-soluble air drying alkyd resin is formulated by flax oil acid,trimethylol propane,dimethyl isophthalate,benzoic acid,maleic anhydride and trimellitic anhydride.

以亚麻油酸、三羟甲基丙烷、间苯二甲酸、苯甲酸、顺丁烯二酸酐、偏苯三酸酐为原料合成水溶性醇酸树脂，中和后制得的涂料具有干性好、硬度高、耐水性和贮存稳定性优良等特性。

Dibutyl maleate was prepared from maleic anhydrideand n- butyl alcohol in the presence of tungstophosphoric acid or molybdophosphoric acid .

用顺丁烯二酸酐和正丁醇为原料，分别以磷钨酸和磷钼酸为催化剂，合成了顺丁烯二酸二丁酯。

Maleopimaric acid can be synthesized by Diels-Alder reaction from rosin and maleic anhydride by phosphato-molybdic acid .

以杂多酸磷钼酸为催化剂合成了马来海松酸。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。