二聚性

The study investigated the effect of pH and concentration of the dendrimers on the solubility enhancement of nicotinic acid.

为研究聚酰胺胺树状大分子对弱酸性亲脂性药物烟酸的增溶作用，合成了以乙二胺为核的1。

The star shaped block copolymers were prepared by ring opening polymerization of ε caprolactone in the presence of multiarm PEG using stannous octoate as a catalyst.

以辛酸亚锡为催化剂，通过星型聚乙二醇引发ε己内酯开环聚合，制备了PEG b PCL嵌段共聚物，进一步以丙烯酸酯封端，合成了 3种水溶性大分子单体。

The star-shaped block copolymers were prepared by ring-opening polymerization of ε-caprolactone in the presence of multiarm PEG using stannous octoate as a catalyst.Based on these star-shaped PEG- b -PCL,soluble macromers terminated with acrylate groups were synthesized.

以辛酸亚锡为催化剂，通过星型聚乙二醇引发ε-己内酯开环聚合，制备了PEG- b -PCL嵌段共聚物，进一步以丙烯酸酯封端，合成了3种水溶性大分子单体。

Scanning electron microscopy,transmission electron microscopy,circular dichroism and small-angle X-ray diffraction were used to analyze the aggregation mode of CSG in the organogel phase.A hierarchical self-assembly model was proposed to explain the transition from molecular to primary and secondary structure.It is shown from our results that CSG can aggregate into a micellar fibril nanostructure with high length-to-width ratio which is bundled and entangled to form a three-dimensional(3D) network that immobilize the fluid component probably by surface tension.Moreover,sol-gel polymerization of tetraethoxysilane was carried out using CSG in the gel phase.

通过扫描电镜(ScanningElectron Microscopy，SEM)、透射电镜(Transmission Electron Microscopy，TEM)、圆二色谱(Circular Dichroism，CD)和小角X—射线衍射仪(Small-angle X-rayDiffraction，SAXRD)考察CSG分子自组装行为结果表明，CSG形成的聚集体具有多级结构：首先CSG通过手性堆叠自组装形成直径在9—10nm的细纳米纤维，这些细的纳米纤维再以不规则的六方堆积的方式进行排列，构成直径在40—100nm的粗纳米纤维(即细纳米纤维的&捆束&)，最后粗纳米纤维互相粘连形成三维网络状结构，使有机溶剂&固定&，从而形成凝胶；以CSG有机凝胶为模板，四乙氧基硅烷为前体，通过溶胶—凝胶聚合的方法制备了直径大约为100nm的二氧化硅纳米管。3。

The results of research showed that compound ferrous flocculant has simple preparation and not any second pollution matter is produced to the environment, it has big and stout floes formation and fast speed sedimentation while dealing with waste water, it is positively charged according to the electrophoresis, it belongs to cationic flocculant, can gives better coagulation results in turbidity removal, color removal, the maximum removal rate of turbidity and color are 95.4% and more than 81.7%, respectively. There are interactions between polysilicic acid and hydrolyzed ferrous species, the compound ferrous with appropriate Si/Fe not only but also can lower the water treatment cost. The compound ferrous removes colloid particles in water by charge oxidation-reduction, neutralization and furl mechanism.

研究结果表明：复合亚铁制备工艺简便，无二次污染；处理水样时产生的矾花大，密实、沉降速度快；复合亚铁带电性为正，为阳离子型絮凝剂；复合亚铁具有较好的除浊、脱色能力，除浊率及脱色率最高分别可达95.4％及81.7％；在复合亚铁中，聚硅酸与亚铁的水解产物间存在着相互作用，合适的硅铁摩尔比有利于提高混凝效果，而且还可以降低投药成本；复合亚铁是通过氧化还原、吸附电中和及卷扫三种作用机理起混凝作用的。

Solution polymerization and amide reaction were used to synthesize the multifunctional comb-type amphiphilic polymer, stearyl methacrylate/ methylacrylic acid-ethanolamine-ethanediamine-folic acid polymer.

利用溶液聚合和成酰胺反应合成了多功能梳状两亲性共聚物，聚甲基丙烯酸-甲基丙烯酸十八酯-乙醇胺-乙二胺叶酸。

The amphiphilic copolymer poly (MAA-SMA-PEGMA) was synthesized by the conventional free-radical copolymerization of methacrylic acid, stearyl acryate and poly methacrylate monomers.

利用功能性单体甲基丙烯酸、甲基丙烯酸十八烷基酯和聚乙二醇甲基丙烯酸酯通过常规自由基无规共聚反应，合成了两亲性共聚物Poly(MAA-SMA-PEGMA)。

The different adjuvants affected suspended rate of 15% triadimedon wettable powder in the study.

通过对 15 %三唑酮可湿性粉剂不同配方悬浮率的研究发现，加入聚乙二醇 6 0 0 0 ，其热贮之后的悬浮率仍≥ 6 5 %。

Amphiphilic graft copolymers were synthesized by the copolymerization of polyoxyethylene macromer with butyl acrylate and methyl methacrylate in benzene using azobisisobutyronitrile as initiator.

以偶氮二异丁腈为引发剂，将大单体聚环氧乙烷与小单体丙烯酸丁酯、甲基丙烯酸甲酯在苯溶液中进行共聚，合成了两亲性接枝共聚物。

A sample (660 mg ) of an oligomeric protein of Mr 132,000 was treated with an excess of l-fluoro-2,4-dinitrobenzene (Sanger's reagent) under slightly alkaline conditions until the chemical reaction was complete.

一分子量为132，000的660mg寡聚蛋白样品，在弱硷性条件下用过量的1-氟-2，4-二硝基苯处理，直到反应完成。

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。