二聚

High quality poly(9,9-dioctylfluorene) films were synthesized electrochemically by direct oxidation of 9,9-dioctylfluorene in pure boron trifluoride diethyl etherate on stainless steel sheet, with polymer conductivity of 1×10－2 S/cm.

在三氟化硼乙醚中， 9，9-二辛基芴可以直接阳极氧化制备高质量聚(9，9-二辛基芴)膜，其电导率为1×10－2 S/cm。

Nitratomethyl-3-ethyloxetane was synthesized by the process of cyclization, nitation from trimethlolpropane and diethyl carbonate, and the homopolymer of 3-nitratomethyl-3-ethyloxetane was synthesized with 1,4-butanediol as initator and boron trifluoride etherate as an catalyst by cationic ring-opening polymerization.

以三羟-甲基丙烷和碳酸二乙酯为原料经环化、硝化两步反应合成了化合物3-硝酸酯甲基－3-乙基氧丁环；采用1，4-丁二醇为引发剂，三氟化硼乙醚(BF3Et2O)为催化剂，NIMEO发生阳离子开环聚合得到一种端羟硝酸酯均聚醚PNIMEO。

The preparation and characterization of trimethylamine modified glutaraldehyde-crosslinked chitosan resin activated with cyanuric chloride,and its infrared spectral properties were studied.

用水相均匀交联法制备戊二醛交联壳聚糖树脂，以三聚氯氰为活化剂，合成了三甲胺修饰戊二醛交联壳聚糖树脂，研究了该树脂的红外光谱特征及吸附性能。

Curwood's Dave Engen, market manager for cheese, describes the Curpolene 7202 film as a 2.6-mil, two-ply, coextruded lamination of oriented polyethylene terephthalate, laminated to a proprietary ethylene vinyl alcohol/nylon coex that offers superior resistance to heat and abuse, as well as superior machinability, and barriers and esthetics for nonrespiring sliced cheeses like Provolone and Cheddar.

curwood的戴夫Engen的，市场经理，奶酪，描述curpolene 7202电影作为一个2.6万桶， 2层，共挤层压面向聚对苯二甲酸乙二醇酯，层压到一个专有的乙烯-乙烯醇/尼龙国际会展中心，提供优越的抗高温和虐待，以及优越的可加工性，和障碍，美学为nonrespiring切片奶酪一样， provolone和干酪。

The excess of ethyl orthosilicate should render the chain terminal unreactive toward the crosslinking...

降解是由于水在二月桂酸二丁基锡酯或它的水解产物月桂酸催化下使聚二甲基硅氧烷主链的Si—O—Si键水解所引起的。

The film, converted by Packall Packaging, consists of an outer layer of polyethylene terephthalate, a middle one of nylon and an inner sealant layer of linear low-density polyethylene blended with ethylene vinyl alcohol.

影片中，转换Packall包装，由外层的聚对苯二甲酸乙二醇酯，一个中等的一个尼龙和内密封层的线性低密度聚乙烯混合乙烯醇。

The polyacrylate-/vinylidene chloride/nanomontmorillonite Composite emulsion was prepared by seed emulsion polymerization.The influence of the content of nanomontmorillonite on composite emulsion diameter ,mechanical properties and thermal stability is probed.

以偏二氯乙烯和蒙脱土作改性剂，采用种子乳液聚合方法制备了聚丙烯酸酯偏二氯乙烯/蒙脱土共聚物复合乳液，研究了蒙脱土质量分数对共聚物乳胶粒径、乳胶膜抗拉强度与断裂伸长率及热稳定性的影响。

Using N, N-dimethyl-ethylenediamine as cationic substitute and 2-hydroxyethyl methacrylate or allylamine as co-substitute, a kind of pH-sensitive polyorganophosphazenes bearing unsaturated side group was prepared.

以N，N-二甲基乙二胺为阳离子型取代基，甲基丙烯酸羟乙酯或烯丙胺为共取代基，制备了同时带有pH响应性侧基和不饱和双键侧基的聚膦腈。

Water,butylene glycol,biosaccharide gum-1,ppg-26-buteth-26,panthenol,peg-40 hydrogenated caster oil,hydroxyethylcellulose,imidazolidinyl urea,saccharide isomerate,benzophenone-4,phenoxyethanol,triethanolamine,citrus aurantium dulcisoil,pentadecalactone,methylparaben,sodium hyaluronate,citric acid,butylparaben,ethylparaben,citrus aurantium amaraoil,propylparaben,methylchloroisothiazolinone,methylisothiazolinone,red 4,yellow 5,red 33,limonene,linalool

水，丁二醇，多醣物质，PPG-26-丁醇聚醚-26，维生素B5，PEG-40氢化蓖麻油，羟乙基纤维素，尿素醛，天然异构寡糖，二苯甲酮- 4，苯氧乙醇，三乙醇胺，甜橙油，环十五内酯，羟苯甲酯，透明质酸钠，柠檬酸，羟苯丁酯，羟苯乙酯，苦橙油，羟苯丙酯，甲基氯异塞唑晽酮，甲基异噻唑啉酮，红4，黄5，红33，柠檬精油，芳樟醇

The results indicated that the UV coatings made from epoxy acrylate resin/TPGDA monomer by the weight ratio of 80/20, and 3% dosage of benzil dimethyl ketal photoinitiator had an excellent films properties such as hardness, tensile strength, gloss and weatherability, while it possessed a poor impact resistance and adhesion of films.

试验结果发现，以预聚合体/单体比例为80/20、单体种类为二丙烯酸三丙烯乙二醇酯、光引发剂Benzil dimethyl ketal添加量为3%调配而成之UV涂料，其涂膜硬度、拉伸强度、光泽度及耐候性等性质优良，但涂膜耐冲击性、附著性不佳。

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。