iSsosuurrcve:eTyh. is survey. The reasons for this became apparent when disaggregating the various aspects of the expropriation (Figure 7). In terms of the notification, 42.3 percent felt uncertain about whether it was clear, and another 36.4 percent felt uncertain about whether it was timely....
(PEAK) are engineering thermoplastics that have receive1d5 coof n37- siderable attention due to their superior mechanical properties, amenability for solution processing, and compatibility with synthetic approaches for introducing cation head groups, tgerthouerpss,,atnedth/eorrs,craonsdsl/ionrkcsrt...
间硝基三氟甲苯用铁粉还原:将盐酸及铁粉依次加入水中,加热至80℃,缓缓滴加间硝基三氟甲苯,控制在80-85℃加完,于1.5h内升温至回流,保温3h,冷却至50℃,加碳酸钠溶液(10%)1.7倍,蒸馏,馏出液分去水层,油状物用无水硫酸钠干燥后过滤,得间氨基三氟甲苯。收率85.7%。 生产方法 其制备方法是在高压釜内依次加...