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The polymerization reacts from the inverse emulsion . Selecting white oil as continuous medium , Span60 and TX-10 as the complex emulsifier , AM-01﹑(NH4)2S2O4 and NaHSO3 as new-type complex initiator , the copolymerization of dimethylamino ethyl acrylate methyl chloride/acrylamide was developed . The effects of the concentration of monomer﹑emulsifier and initiator﹑ temperature﹑reaction time and pH on the molecular weight﹑intrinsic viscostity﹑conversion ratio and cation degree of copolymer were studied .

以反相乳液为初始聚合体系，油酸失水山梨醇酯Span60和辛基酚聚氧乙烯醚TX-10构成复配乳化剂，白油为连续介质，AM-01、过硫酸铵和亚硫酸氢钠组成新型复合引发体系，进行丙烯酰胺/（2-甲基丙烯酰氧乙基）三甲基氯化铵的反相准微乳液共聚合，研究了单体浓度、乳化剂、反应温度、反应时间、pH等因素对聚合产品分子量、特性粘数、转化率及阳离子度的影响。

The cesium fluoride-mediated N,N-diarylation of 4-(biphenyl-4-oxy)aniline with 4-fluoronitrobenzene and subsequent reduction of the dinitro intermediate led to a new triphenylamine-based diamine monomer, 4,4'-diamino-4-(biphenylyl-4-oxy)triphenylamine.

以氟化铯为媒介将此苯胺与 4-fluoronitrobenzene 进行芳香族亲核取代反应，随后再进行dinitro中间体的还原反应，制得ㄧ种新型具有三苯胺结构的芳香族二胺单体4，4'-diamino-4-(biphenylyl-4-oxy)triphenylamine。

Only the pentafunctional monomer gave entirely insoluble and infusible polymer;all the other monomers gave partly polymers and partly distillable oligomers.

五功能团单体全部形成不溶不熔的树脂，其余皆给予部分能蒸馏的低聚体和不能蒸馏的高聚体。

The active form of NGF is a dimer in which two monomer is linked by 3 disulphide bonds. This form of dimer makes the purification of NGF difficulty because the protein expressed in E.

在蛋白纯化过程中这种由二硫键形成的空间结构往往是蛋白纯化过程中复性的难点，尤其是在大肠杆菌表达生物蛋白时，所表达的蛋白往往以无活性的单体形式存在于细胞内。

A CR/polystyrene IPN blend was prepared by stepwise synthesis based on CR and styrene monomer and using divinyl benzene as crosslinking agent of PS.

以CR和苯乙烯单体为原料，二乙烯基苯为苯乙烯的交联剂，采用分步合成法制备CR/聚苯乙烯互穿网络共混物。

The results show that the introducing of multivinyl monomer and CaCO3 can slow down polymerization rate to different extent.Using 1％～5％ trimethylolpropane trimetbacrylateor divinyl benzene,tight encapsulation of CaCO3 can be realized and beyond 94％PS cannot be extracted. The amount of crosslinker or emulsifier should be accommodated when the load amount of CaCO3 is increased.CaCO3 content in the product increases consequently with the increase of the loaded amount of CaCO3,which can be known from FT-IR and TGA.TEM observations reveal that when the load amount of CaCO3 is 14.8％,most CaCO3 particles are encapsulated and each latex particle contains one CaCO3 particle.Composite particles have well-defined core—shell structure and the thickness of polymer shells is around 10 nm.However,the thickness of polymer shell decreases and many free CaCO3 particles appear when the load amount of CaCO3 reaches 29.3％and 58.7％,respectively.

结果表明，多乙烯基单体以及碳酸钙的引入会使聚合反应速率有不同程度的降低；使用1%～5%的TMPTMA或DVB，可实现PS对碳酸钙颗粒的牢固包覆，不可抽提的PS达94%以上；当碳酸钙用量改变时，需要适当调整乳化剂和多乙烯基单体的用量；IR和TGA的结果表明，随着碳酸钙用量增加，产物中的碳酸钙含量也相应增加；TEM照片和计算结果显示，当碳酸钙用量为14.8%时，绝大部分碳酸钙颗粒被包覆，且基本上每个乳胶粒中包覆一个碳酸钙颗粒，复合粒子具有清晰的核壳结构，壳层厚度约为10 nm，而当碳酸钙用量增加到29.3%和58.7%时，壳层厚度减小，并且出现较多裸露的碳酸钙颗粒。

Results showed that the monomer conversion increased slightly in the presence of the crosslinking agents The size of particles decreased slowh as the amount of cmsslinking agent increased.and the size distribution of the particles broadened at a higher amount of cmsslinking agent Divinyl benzene was more effective than ethyl glycol dimethyl methacrylate to make polymer crosslinked.During alkali treatment process,void latex particles can be obtained when no DVB or less than 0.5 wt％ of EGDMA was used,while muhihollow structure was generated when DVB or more than 1.0 wt％ of EGDMA was introduced.The volume expansion of the particles decreased with increasing the amount of emsslinkirlg agents.

结果表明，体系中加入交联剂后，单体转化率都有不同程度的提高；随交联剂用量的增加，乳胶粒粒径略有减小，交联剂用量较高时，乳胶粒粒径分布加宽；二乙烯基苯的交联效率稍高于双甲基丙烯酸乙二醇酯；不加入交联剂及EGDMA用量低于0.5%时，处理后乳胶粒呈空腔结构，加入DVB及EGDMA用量高于1.0%时，处理后乳胶粒呈多孔结构，并且乳胶粒体积增量随交联剂用量的增加而减小。

In order to approach the industrialization continuous production flow, the article studied production of acid dyeable polyacrylonitrile by the continuous water phase suspension polymerization using the existing laboratory instrument. The influence of third monomer and initiator content on productivity and dye uptake of PAN were investigated.

为了接近工业化的连续生产流程，利用实验室现有的仪器设备，设计了连续水相悬浮法生产酸性染料可染聚丙烯腈的实验装置，实现了聚丙烯腈的连续聚合，并研究了第三单体、引发剂用量对聚丙烯腈上染率、产率的影响。

Through comparing with commercial low molecular emulsor, the effect of DMPA content on the surface-active ability of PEPUD was researched and an available DMPA content in the synthetic fomulation of PEPUD suitable for acrylate monomer emulsification was determined.

研究了DMPA含量对可聚合自乳化聚氨酯水分散体表面活性能力的影响，通过与商用低分子乳化剂的表面活性能力进行对比，确定了其符合丙烯酸酯单体乳化要求的合成配方中DMPA的适宜含量。

APUHD was prepared with PEPUD acted as emulsor and reactive seeded emulsion in polymerization of acrylate monomer.

利用可聚合自乳化聚氨酯水分散体作为乳化剂和反应性的种子乳液与丙烯酸酯等单体共聚，其优点在于能调节聚氨酯水分散体侧链上参与共聚的双键数目，使聚氨酯和丙烯酸酯两相聚合物体系间直接化学键合增强，相容性提高，增加体系内部交联密度，合成得到具有核壳间互穿网络结构的丙烯酸聚氨酯杂合水分散体。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新