高分子

Key words: polymer material;acrylonitrile;itaconic acid;copolymerization;molecular weight;differential scanning calorimetry; thermogravimetry

关键 词：高分子材料；丙烯腈；衣康酸；共聚合；分子量；差示扫描量热法；热重

The experimental results show that this new kind of chitosan derivative has the characters of both chitosan and dithiocarbamate.This compound has much better selectivity and capability for heavy metals.Meanwhile,it is convenient,safe and more jarless in acid solution.All results above show that this chitosan derivative has a good application foreground.

本文合成的二硫代氨基甲酸改性壳聚糖兼具天然高分子壳聚糖与二硫代氨基甲酸基的结构与特性，对重金属离子具有良好的选择性和优异的捕集效果，能同时去除多种重金属离子，而且具有使用方便、毒性小、抗干扰能力强、性能稳定等优点，具有良好的应用前景。

Guangzhou Jingbang Hydraulic Seal Technology Co., Ltd. is professionally engaged in research, production and sales of fluoroplastics, fluorine products, high polymer wear-resisting material and seals(diameter of 2 meters) of large-scale hydraulic oil cylinders.

广州市晶邦液压密封技术有限公司（下设广州市晶达塑胶科技有限公司，广州市晶程液压密封技术服务有限公司）专业从事液压油缸密封件，氟塑料，氟制品，高分子耐磨材料的研究，生产、销售。

The synthesis of reactive ladderlike polysiloxane is one of the most challenging tasks, from which a series of novel functional ladderlike polysiloxane can be prepared.

而合成具有反应性的梯形聚硅氧烷更是一个重要的前沿课题，可以进一步衍生出一系列新型的梯形主链的功能高分子。

Then according to the different ways of mesogenic units connecting to the ladderlike main-chain, the ladderlike polysiloxane liquid crystals are classified into fishbonelike and canoelike polysiloxane liquid crystals.

介绍了梯形聚硅氧烷液晶的结构特点，根据液晶基元接枝到梯形高分子主链上的方式，将梯形聚硅氧烷液晶分为鱼骨形和划艇形两种。

The initial three chapters of this dissertation aim to improve the regularity of ladderlike polysiloxane through strong H-bonding template and slowly dropping half water for hydrolysis and condensation.

本论文前三章旨在利用强氢键模板作用和半水量水解同步缩合脱氯化氢的改进方法首次合成了(1)高规整性、可溶的反应性含对苯二胺有机桥基的聚氢基硅氧烷高分子，29Si-NMR 图中显示梯形主链上硅原子-Si(HO2/2峰的基线宽度△1.0 ppm，这是至今文献报道的所有梯形聚硅氧烷规整性最好的数据；采用分段去撑法成功的合成了纯无机梯形聚氢基硅氧(来源：1bABC论文网www.abclunwen.com)烷。

A high ordered ladderlike polyhydrosiloxane was successfully synthesized by the strong H-bonding template of N〓, N〓-bis (1-hydroxy-2-methylpropan-2-yl) terephthalamide.

通过强的酰胺氢键模板作用首次合成了高规整性、可溶的反应性有机桥基N，N-二（2-羟基-2-甲基丙基）对苯二甲酰胺聚氢基硅氧烷高分子。

The theory and experiment results all has verified that the melting point of polymer isdetermined by the lamellar thickness.

由于理论和实验都证明了高分子结晶的熔点是取决于晶片厚度的。

The EnglishChinese Technical and Scientific Dictionary;the Chemical Industry Products Handbook;Dictionary of Chemistry;Biopolymer;Encyclopedia of Chemical Industry Equipment Design;Mechanical Design Handbook;Chinese Commercial Handbook of Petroleum and Chemical Industry;Guide to the Chinese Coating Industry;Yearbook of Chinese Plastics Industry (2004 );Development Report of Chinese New Materials(2004 );Powder Technology Handbook;Technical Manual of Modern Coal Industry;Applications of Synthetic Resin Latices;the Collected Safe Hygiene Regulation of Chinese Chemical Industry;Encyclopedia of Safety Technology for Dangerous Chemicals.

英汉技术科学词典》，《化工产品手册》《化学辞典》《生物高分子》，《化工设备设计全书》《机械设计手册》(第4版)，《中国石油和化工商务手册》《中国涂料工业指南》《中国塑料工业年鉴》(2004)》，《中国新材料发展报告》(2004)《粉体技术手册》《现代煤化工技术手册》《合成聚合物乳液的应用》，《中国化工安全卫生法规汇编》《危险化学品安全技术全书》。

Nanometer paniculate electroporesis,cholesteric liquid crystal display,organic electroluminescent display ,leuco dyes, inorganic electroluminescent display and conductive polymeric thin film transistor are used to develop the flexible electronic paper,whic...

纳米颗粒电泳、胆甾液晶、有机电致发光、隐色染料显示、无机电致发光等原理显示技术的开发，以及导电高分子薄膜晶体管的应用，使电子书、智能显示卡、无墨印刷、电子报纸等技术应用逐步成为现实。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷