二甲基丙烷的意思|二甲基丙烷的解释-里氏词典

二甲基丙烷 [èr jiǎ jī bǐng wán]

dimethyl propane

在2,5-二甲基苯酚与1,3-二溴丙烷的O-烷基化反应中加入少量碘化钾,反应时间可大大缩短,且产率亦可达67.8%.
If the few potassium iodide was added to the O-alkylation of 2,5-dimethylphenol and 1,3-dibromopropane,the reactive time would decrease and the yields would reach to 67.8%.
叙述了甲苯二异氰酸酯(TDI)与三羟甲基丙烷(TMP)和1,4丁二醇(1,4BD)在催化剂的作用下制备预聚体的合成路线。
The route for synthesizing the prepolymer based on toluene diisocyanate(TDI),trimethylol propane(TMP) and 1,4 butanediol(1,4 BD) in presence of catalyst has been described .
以DCPD(双环戊二烯)和TMPDE(三羟甲基丙烷二烯丙基醚)作为不饱和聚酯树脂的气干改性剂,并用合成的树脂制备不饱和聚酯腻子。
The unsaturated polyester putty is prepared with the synthesized unsaturated polyester resin which is modified by DCPD and TMPDE as air-drying modifiers.

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