氟化钠

The influence of each condition on the reaction speed and yield was studied, and the optimal conditions were: the ratio of the amount of substance of aromatic amine and heptafluoro-isopropyl iodine was 1:1.1~1.5, the amount of substance of sodium dithionite, sodium bicarbonate, aniline compounds were respectively 1.1~1.3, the amount of substance of phase transfer catalyst TBAB and aniline compounds was 0.05~0.1, the concentration of aniline compound was 0.5~1.0 mol/L, reaction temperature was 10~20 ℃, and the solvent was aether.

最佳结果为：芳胺与七氟异丙基碘的物质的量比1：1.1~1.5，连二亚硫酸钠、碳酸氢钠与苯胺的物质的量分别为1.1~1.3，相转移催化剂四丁基溴化铵与苯胺的物质的量比在0.05~0.1，溶剂总用量使苯胺浓度在0.5~1.0 mol/L；反应温度10~20℃；溶剂采用乙醚。取代基供电子性越强，反应时间越短，产率越高；氨基的对位优先反应，氨基的邻位较难发生反应；且七氟异丙基总是优先取代在芳环电子云密度较高的位置上。

A series of crosslinked sulfonated polys were synthesized from 4,4'-difluorodiphenyl sulfone, 4,4'-biphenol, 3,3'-disulfonate-4,4'-difluorodiphenyl sulfone and 1,3,5-trihydroxy benzene by nucleophilic substitution polycondensation reactions. The trifunctional crosslinker of THB was in the mass fraction range of 3%-7%.

以4，4'-二氟二苯砜、4，4'-联苯二酚、3，3'-二磺化－4，4'-二氟二苯砜二钠盐和三羟基苯为原料，经高温溶液缩聚反应，制备了一系列不同磺化度的新型交联磺化聚芳醚砜。

Sulfonated poly are prepared by direct polymerization of biphenol A, disodium 4, 4"-difluoro-3, 3"-disulfonate-1, 1-diphenylketone and 2, 6-difluorobezonitrile. The polymers are characterized with ~1H-NMR, FT-IR.

以双酚A，2，6-二氟苯腈和4，4′-二氟-3，3′-二磺酸钠-1，1′-二苯酮采用直接缩合法合成了不同磺化度的磺酸型聚芳醚腈酮，通过FT-IR和~1H-NMR对聚合物进行了表征，证明其结构正确。

Sulfonated poly are prepared by direct polymerization of biphenol A, disodium 4, 4"-difluoro-3, 3"-disulfonate-1, 1-diphenylsulfone and 1, 3-(4-difluorophenyl)benzene. The polymers are characterized with ~1H-NMR, FT-IR.

以双酚A，1，3-二(4-氟苯基)苯和4，4′-二氟-3，3′-二磺酸钠-1，1′-二苯砜采用直接缩合法合成了不同磺化度的磺酸型聚芳醚酮砜，通过FT-IR和~1H-NMR对聚合物进行了表征，证明其结构正确。

Bis(4-fluorophenyl)phenyl phosphine oxide was synthesized by Grignard reaction, and sulfonated bis(4-fluorophenyl)phenyl phosphine oxide was prepared by sulfonation of BFPPO.

具体内容如下：通过Grignard反应合成了二(4-氟苯基)苯基氧膦单体，并将其磺化，合成了二(4-卤苯基)-3-磺酸钠苯基氧膦单体。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。