醚的

The asymmetric polymerization of methyl methacrylate is carried out using the chiral binaphthyl crown ether macrocyclic compounds binding n-BuLi or t-BuOK as chiral initiator at -78℃.

以手性联萘冠醚为配体，络合n-BuLi，t-BuOK等有机金属化合物形成手性引发剂体系，初步探讨了甲基丙烯酸甲酯单体的聚合反应。

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。

First,from molecular aspect,a novel copolymer-PPBES has successfully been synthesized by nucelophilic substitution reaction with biphenol,4-(4-hydroxyphenyl)-phthlazin-1(2H)-one and 4,4\'-dichlorodiphenylsulfone,which has both twisted and linear molecular structures in the backbone.

本文从分子设计出发，首先选用联苯二酚与4-(4-羟基苯基)-2，3-二氮杂萘-1-酮和4，4′-二氯二苯砜为共聚单体，采用溶液亲核取代逐步缩聚合方法，合成了一系列含有杂萘联苯结构和联苯结构的新型共聚芳醚砜。

A series of sulfonated poly copolymers with different degree of sulfonation were synthesized by aromatic nucleophilic polycondensation of 3,3′-disulfonate 4,4′-dichlorodiphenylsulfone,4,4′-dichlorodiphenylsulfone and 4,4′-biphenol.

将磺化二氯二苯砜、二氯二苯砜与4，4′-联苯酚通过亲核缩聚反应得到一系列具有不同磺化度的磺化聚芳醚砜共聚物。

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。

In the fifth chapter, six compounds formed between nitrogen-containing ligands such as 2, 2'-bipyridyl, isonicotinamide and 1, 4, 8, 11-tetraazacyclotetradecane and the solution cadmium sulfonates such as 1, 5-naphthalenedisulfonate, 2, 6-naphthalenedisulfonate, 4, 4'-bipenyldisulfonate and 4, 4'-penyletherdisulfonate have been synthesized and structurally characterized. Besides, another compound has been synthesized with cadmium carbonate reacting with 1, 5-naphthalenedisulfonate acid.

第五章以2，2'-联吡啶、异烟酰胺和1，4，8，11-四氮杂环十四癸烷与含有Cd〓和1，5-萘二磺酸根离子、2，6-萘二磺酸根离子、4，4'-联苯二磺酸根离子和4，4'-苯醚二磺酸根离子的水溶液反应，合成了六个化合物，另外以1，5-萘二磺酸与碳酸镉反应合成出一个化合物。

Methods:The target compound was synthesized using 4-hydrazino-N-methyl-benzyl-sulphonamide hydrochloride and 4,4-dimethoxy-N,N-dimethyl butylamine as the starting materials,PPA and sodium dihydrogen phosphate instead as catalysts and isopropyl ether and acetone as solvents for recrylstallization,via 4-step reactions:condensation,rearrangement,cyclization and salt formtion.

以4-肼基-N-甲基-苄基磺酰胺盐酸盐与4，4-二甲氧基-N，N-二甲基-丁胺为起始原料，改用多聚磷酸和磷酸二氢钠作为催化剂，后处理采用异丙醚和丙酮作为重结晶溶剂，经缩合、重排、环合、成盐的4步反应合成琥珀酸舒马曲坦。

In the second chapter , four new tetra-O-substitution of calix[4]arene derivatives are synthesized by condensation and two steps of substitution reaction from p-tert-phenol and formaldehyde.

本文第二章对Calix[4]arene进行了功能化，通过三步反应，合成了四种新的混醚。

Methods Using petroleum ether to extract crude fat from the Capparis spinosa fruit and identify separately with GC-MS method after methanolysis.

方法］用石油醚提取刺山柑果实中的粗脂肪，甲酯化后，用GC-MS法进行分离鉴定。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。