It not only can prepare substituted arylamine sulfoacid with high-quality and high-yield, but also can easily control reaction temp., and reduce reaction temp..

所說(shuō)的方法不僅能高質(zhì)量国产呦系列久久精品、高產(chǎn)率地制備取代芳胺磺酸日韩欧美亚洲综合久久图片，而且由于在有機(jī)溶劑中進(jìn)行反應(yīng)日韩一级欧美一级高清片w，可非常容易地控制反應(yīng)溫度国产精品污视频，并可降低反應(yīng)溫度A片在线播放观看中文字幕。

Some physical and chemical targets of black sulfoacid were analysed. Application of bIack sulfoacid have been investigated.

本文對(duì)黑磺酸的部分理化指標(biāo)進(jìn)行了分析精品久久亚洲一区二区欧美，在利用黑磺酸方面做了一些探索欧美性交网。

Said invention utilizes the control of sulfonation extent of polystyrene sulfoacid membrane and distribution of sulfoacid group to implement modification or polystyrene sulfoacid membrane, on the primise of that the protein conductivity of the membrane is not affected, the permeability of the methyl alcohol in the membrane is reduced, and the alcohol-resistance of membrane material is raised.

通過(guò)控制聚苯乙烯磺酸膜的磺化程度和磺酸基團(tuán)的分布狀況來(lái)對(duì)聚苯乙烯磺酸膜進(jìn)行改性，在不影響膜的質(zhì)子傳導(dǎo)性能的前提下1024手机看片日韩人妻，降低了甲醇在膜內(nèi)的滲透率日韩在线7777，提高了膜材料的阻醇性能。

Some typical newly catalysts, such as sulfoacid, inorganics, solid superacids, etc on the reaction of p-hydroxybenzoic esters was summed up especially introduce heteropoly acid catalyst.

總結(jié)了磺酸黄色一级免费在线观看、無(wú)機(jī)物国产男人黄色、固體超強(qiáng)酸等幾種典型的合成對(duì)羥基苯甲酸酯反應(yīng)的新型催化劑，重點(diǎn)介紹了雜多酸催化合成對(duì)羥基苯甲酸酯欧美一级婬片BBB。

The present invention uses industrial polystyrene as raw material, under the protection of inert gas uses complex of acidylating agent and concentrated sulfuric acid as sulfonating agent to make sulfonation, and utilizes dector-blade casting process or other membrane-forming process to prepare polystyrene sulfoacid membrane with low sulfonation degree.

本發(fā)明涉及電化學(xué)的燃料電池技術(shù)欧美特黄黄色视频，更具體是指低溫直接甲醇燃料電池用聚苯乙烯磺酸膜及其制備方法。本發(fā)明是以工業(yè)級(jí)的聚苯乙烯為原料3D动漫同人H无码精品，在惰性氣體保護(hù)下以鮳ww.黄色视频在线com；瘎┡c濃硫酸的絡(luò)合物作磺化劑，進(jìn)行磺化自拍野战视频，并通過(guò)流延法或者其它成膜方法制備低磺化度的聚苯乙烯磺酸膜谁有免费黄色网站?。

sulfoacid：磺酸

sulfite 亞硫酸鹽 | sulfoacid 磺酸 | sulfobromophthalein sodium 磺溴酞鈉