二聚

Disclosed are certain moisture curable prepolymers formed by the reaction of diphenylmethane diisocyanate with conventional polyether polyols to produce sealants and coatings exhibiting excellent combinations of physical properties; most notably high tensile strength, high tear resistance, and high elongation.

公开了通过二苯基甲烷二异氰酸酯与习用的聚醚多元醇反应形成的某种湿固化的预聚物，以生产显示杰出综合物理性质(最显著的高拉伸强度、高抗撕裂强度和高伸长度)的密封胶和涂料。

CuS and CdS nano-particulate films were obtained with these two methods, and some interesting phenomena were observed: under the Gibbs film formed by CTAB, CuS nano-rods were obtained at the oil/water interface, and disklike aggregates of CdS nano-crystals were obtained at both the air/water and oil/water interfaces; under the Langmuir film formed by NaAOT at air/water interface, disk-like aggregates of CdS were also obtained.

利用此两种反应技术，制备了CuS和CdS颗粒膜，并研究了它们的一些光电性质；在Gibbs膜下，得到了棒状CuS纳米晶。由发现的表面活性剂形成的带状物，提出棒状CuS晶体是以带状聚集体为模板形成的；在液-液、气-液界面Gibbs膜下反应中，发现CdS纳米颗粒的盘状聚集体的形成，这是由于表面活性剂在界面上形成的二维胶束而造成的；在气-液界面上Langmuir下的反应中，也发现CdS盘状晶体的生成。

It was found that the electroosmotic flow of the modified chip varied relatively small with pH and exhibited good reproducibility and stability.

首次将聚丙烯氯化铵和聚丙烯酸通过静电吸附作用层层组装于聚二甲基硅氧烷/玻璃芯片内部，修饰后的芯片电渗流随pH值的变化较小，具有较好的重复性和稳定性，EOF在2周内的变化率为1.58%。

Application of conductive polyaniline on the electronic related industry has become more and more interesting and popular. In this research, the chemical oxidization method was used to form emeraldine salt type PANi doped with HNO3 and dodecyl benzene sulfonic acid.

导电性聚苯胺(Polyaniline；PANi)应用在电子相关产业是目前相当热门的研究领域，本研究采用化学氧化合成法制备硝酸与十二烷基苯磺酸共掺杂之Emeraldine Salt型聚苯胺。

2The chemical oxidization method was used to prepare emeraldine salt type conductive polyaniline co-doped with hydrochloric acid and dodecylbenzene sulfonic acid (PANI－HCl－DBSA) by interfacial polymerization which employ immiscible interface formed via the water and organic solvent.

2采用化学氧化合成法，以界面聚合方式，利用水与有机溶剂所形成的不相容界面，直接制备以盐酸和十二烷基苯磺酸共掺杂ES型导电性聚苯胺(PANI－HCl－DBSA)，藉由加入适量之DBSA，达到聚苯胺可完全溶解分散於有机溶剂中的目的。

The prepared PU was an elastic solid,which could dissolved in ethanol,and it exhibited strong deep purple fluorescence at the peak of 365 nm along with a shoulder at 386 nm as a thin film. Obviously,the prepared PU also was a kind of uncommon ultraviolet-emitting polymer materials.2.A novel water-soluble rod-coil block copolymer was designed and prepared successfully via the facile isocyanic acid polycondensation method using polyfluorene as rod segment and polyethylene glycol as coil segment in the main chain for the first time.

所制备的聚氨酯是一种弹性固体，可以溶解在乙醇中，同时又显示出具有半导体性质的荧光性能——最大荧光发射峰在365 nm并且在386 nm处有一个小的侧肩峰，可见它又是一种非常难得的紫外发光聚合物材料。2、首次采用了简单的异氰酸酯反应，成功地将聚芴作为刚性链段和聚乙二醇作为柔性链段，以嵌段方式连结到聚合物分子主链上，从而形成了一种新型的具有刚性链—柔性链结构的嵌段共聚物。

In this part of dissertation, the cure reactions of PGA withhexamethylene diisocyanate isocyanurate were investigsted byFTIR, DSC and gel fraction.

本文用FTIR、DSC和凝胶含量的测定等方法，对聚丙烯酸环氧丙酯和六亚甲基二异氰酸酯三聚体的固化反应进行了研究。

First, according to documents report, the complexes of poly (methacrylic acid-co-methyl methacrylate) network with poly stabilized by the hydrogen bonds were designed and synthesized.

首先根据文献报道，设计并合成了聚（甲基丙烯酸-co-甲基丙烯酸甲酯）网络及其与聚乙二醇的氢键聚合物网络复合物。

The possible mechanism was discussed. These bowl-shaped aggregates are promising candidates for nano reactor or drug carrier.4 2,7-dimethylene-1,4,6-trioxaspiro[4, 4]nonane with two vinyls was prepared to be used as electron-donor and crosslinker. The ATRP of this crosslinker and excess methylacrylate (used as electron-accpetor) was proved to mainly form homopolymers. With the chain-transfer agent S-1-Dodecyl-S\'-(α,α\'-dimethyl-α-acetic acid)trithiocarbonate, the copolymerization of the spiro hydrocarbon, maleic anhydride and MA by RAFT method produced star PMA.

这些由聚电解质复合物自组装形成的聚集体，在微反应器和药物释放等领域具有潜在的应用前景。4合成了双乙烯基的2，7-二亚甲基-1，4，6-三氧杂螺环烷，作为给电子单体和交联剂，与吸电子单体马来酸酐或过量的丙烯酸甲酯形成电荷转移络合物共同聚合，尝试了用ATRP和RAFT方法一步法合成星形聚合物。

Nonion surfactants 1dodecanol polyethylene oxider 23 (Brij-35), polyethylene glycol-6000 (PEG-6000) made nickel deposit became dentrite.

非离子表面活性剂月桂醇聚氧乙烯23醚Brij 35）、聚乙二醇-6000(PEG-6000使镀层由无添加剂时的粒晶变成了枝晶。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。