The polyester in these compositions is a 50 % solution of a maleic acid - prophlene glycol condensate in diallyl phthalate 在这些配方中的聚酯是马来酸- -丙二醇缩合物在酞酸二烯丙酯中的50溶液。
Diisopropyl succinate was synthesized from succinic acid and isopropanol with p - methyl benzenesulfonic acid as catalyst 摘要以丁二酸和异丙醇为原料及对甲基苯磺酸为催化剂，催化合成丁二酸二异丙酯。
Poly ( propylene carbonate ) polyurethane elastomers were also prepared using the synthesized poly ( propylene carbonate ) polyols as feedstock 本文还利用所得到的聚碳酸亚丙酯树脂制备出性能优良的聚氨酯弹性体。
Fire retardant agents , according bingzhi production sales , building materials , industrial mine accessories , electrical equipment , wujinjiaodian , chemical raw materials sales 阻燃剂、异丙酯生产销售、建筑材料、工矿配件、机电设备、五金交电、化学原料销售。
Poly ( propylene carbonate ) polyols was synthesized by the copolymerization of carbon dioxide with propylene oxide in the presence of double metallic catalyst in loop reactor 摘要以二氧化碳3环氧丙烷为原材料，在双金属氰化物催化剂催化下，利用环流反应器合成聚碳酸亚丙酯多元醇。
The chelation ability made ac - hac act as a protection layer on the surface of cds nanoparticles , which reduced surface states and improved the band edge emission . 3 这是因为聚丙烯酸?丙烯酸羟丙酯在一定程度上能够修饰cds纳米粒子表面，减少表面缺陷，提高纳米粒子的带隙发光。
2 . in order to improve the luminescence properties , cds nanoparticles entrapped in an acrylic acid - hydroxypropyl acrylate copolymer ( ac - hac ) network were synthesized by in - situ synthesis method 用原位合成法，以具有强配位能力的聚丙烯酸?丙烯酸羟丙酯( ac - hac )为基体在水溶液中合成了cds纳米微粒。
The water - borne polyurethane ( wpu ) emulsion modified by epoxy resin was prepared using toluenediisocyanate ( tdi ) , polyether ( n220 ) , dimethylolpropionic acid ( dmpa ) , epoxy resin , hydroxypropyl acrylate ( hpa ) and so on 摘要以甲苯二异氰酸酯( tdi - 80 ) 、聚醚二醇( n220 ) 、二羟甲基丙酸( dmpa ) 、环氧树脂和丙烯酸羟丙酯( hpa )为主要原料，合成了环氧改性的水性聚氨酯乳液。
Abstract : the property of silk fabric grafted ( cross - linked ) with hydroxypropyl methacrylate and protein at different rate of weigh gain , by measuring strength and elongation at break , dyeability , elastic , moisturecontent , whiteness , permeability of gas , ir and x - ray diffraction diagrams was studied 文摘:通过对织物的拉伸特性、吸湿性、弹性、染色性、白度、透气性、红外和x射线衍射的研究，探讨了在不同增重率条件下甲基丙烯酸羟丙酯在丝蛋白存在下与真丝绸接枝交联后的结构及其特性的影响。
The optimum results are gotten by simulation of changing the value of some variable such as feed position , theoretical tray . the optimum value can be used to guide industrial design . both isopropyl acetate and butyl acetate as azeotropic agent are contrast to each other according to operational data . besides , liquid - liquid equilibrium still is designed by onself , and its credibility is checked by the experimental data of the system acetic acid water - isopropyl acetate at 24 对乙酸-水-乙酸异丙酯体系和乙酸-水-乙酸丁酯体系，分别进行了进料板位置、理论板数的优化计算，得到的优化结果可用于指导工业过程的设计；对采用乙酸正丁酯和乙酸异丙酯作夹带剂时的操作进行了综合比较。
