高分子

The modified polymer flocculant amylum and lignin are reviewed in detail and point out the development.

综述了淀粉和木质素两类天然高分子改性絮凝剂的研究进展，分别指出两类分散剂的研究方向，指出应充分利用这些天然高分子资源，从开发天然改性絮凝剂方面找到一条创新的道路。

The PEI grafted on the surface of nylon was modified by the alkyl halide such as bromohexane and iodomethane,to give high-molecular-weight antimicrobial quaternary ammonium salts.

尼龙6用4-溴丁酰氯活化，再与高分子聚乙烯亚胺在有机溶剂中进行反应，使PEI共价接枝在载体上，然后用卤代烷对接枝在尼龙6上的PEI进行烷基化反应，使其形成具有杀菌功能的高分子季铵盐，制备出尼龙树脂固定化的高分子抗菌杀生剂。

The nylon was activated with organic functional groups,and after that reacted with high-molecular-weight polyethyleniminein the organic soleent. PEI was grafted covalently on the surface of nylon. The PEI grafted on the surface of nylon was modified by the alkyl halide such as bromohexane and iodomethane,to give high-molecular-weight antimicrobial quaternary ammonium salts.

摘 要：尼龙6用4-溴丁酰氯活化，再与高分子聚乙烯亚胺在有机溶剂中进行反应，使PEI共价接枝在载体上，然后用卤代烷对接枝在尼龙6上的PEI进行烷基化反应，使其形成具有杀菌功能的高分子季铵盐，制备出尼龙树脂固定化的高分子抗菌杀生剂。

On the hopeful 21st century, the rapid development of information, biotechnology, energy resources, environment, advanced manufacturing technology and national defense have produced the new demand for materials. More and more small size of materials will meet the demand of miniatured, intelligent, highly integrated, densely memorized and super fast transmission element. Aerospace industry, up-to-date military equipment, advanced manufactured technology and so on has required better and better properties.

中文题名有机高分子－无机纳米复合粒子改性高分子材料的力学性能－相态与群子标度之间关系的研究副题名外文题名 Studies on the relationship of mechanical properties-morphology and sub-cluster parameters of polymer materials modified by organic polymer-inorganic nanocomposite particles 论文作者权英导师金日光教授学科专业材料学研究领域\研究方向学位级别博士学位授予单位北京化工大学学位授予日期2002 论文页码总数177页关键词纳米材料高分子材料纳米复合材料纳米粒子馆藏号BSLW /2003 /TB383 /7 在充满生机的21世纪，信息、生物技术、能源、环境、先进制造技术和国防的高速发展必然对材料提出新的需求，元件的小型化、智能化、高集成、高密度存储和超快传输等对材料的尺寸要求越来越小；航空航天、新型军事装备及先进制造技术等对材料性能要求越来越高。

At the same time, the conformational changes will lead to the changes in thermodynamic properties such as average energy and free energy. Besides, scatting functions are also obtained for star polymer chains with different branches respectively.

同时，高分子链构象在拉伸过程中的变化会引起热力学性质的变化，如平均能量、自由能等。g因子能够大致描绘出环型或星型高分子链与线型高分子链的结构相似程度，模拟的结果显示：它们在拉伸过程中都是减小的。

Experimental results show that PDS is dispersed in PP matrix as spherical globules being in size of the order of 10-1 μ when content of PDS is in the range of 0.1% to 1%.

对于高分子稳定剂来说，研究它和被稳定的高分子之间的相容性以及它在其所稳定的高分子中的分散性是十分重要的。

More and more polymeric surface active agents were used in pigment modification. In this paper, methyl cellulose, sodium polyacrylate and polyglycol were chosen to study the influence of molecular weight and stucture on properties of pigments.

论文中选用的高分子表面活性剂有天然高分子甲基纤维素和聚乙二醇、聚丙烯酸钠等合成高分子，考察了活性剂分子量、结构及用量对颜料性能的影响。

But the rheologic study of LCP is just about ten years.

由于本构方程理论是液晶高分子流变学及其流体力学的理论基础，所以建立和发展适合液晶高分子的本构方程是研究液晶高分子流体力学和流变学的首要任务。

How factors such as interaction between nanoparticle and copolymer, volume percentage of copolymer chain, composition of copolymer and shape of nanoparticle affect the microstructure of system is the emphasis of our simulation.

重点讨论了纳米颗粒表面与嵌段共聚高分子组分间有相互作用、高分子链节的体积分数、嵌段共聚高分子的对称程度、纳米颗粒的形状和尺寸等因素对体系微相结构的影响。

E. OCB mode LCD elements . Then,we added bi-functional powder and LC E7 in the bulk copolymer of Poly Acrylic Acid and EOPO,then poured the LC solution,and exposed it with 5V voltages under ultraviolet radiation. Finally,we observed the changing phenomena of the planar display of OCB cell with additional external voltage under polarized microscopy . It can be observe obviously the polymer wall in OCB cell when NO.4 LC solution having concentration of 3％ wt . At the same time,the polymer which didn't sheltered by mask will polymerize,then,lead LC into high inclined angle alignment. And it formed discontinuous structure along mask affected LC which surrounded the wall. The results measured by photoelectric instruments showed the discontinuous structure not only keeps the inner LC structure at twist mode,but also promotes the originated respond-velocity of OCB.

然后利用聚丙烯酸与EOPO之团聚共聚合物，添加双官能基粉体及液晶E7，制备成液晶溶液再注入液晶盒里，放置光罩并给予固定外加5V电压在UV下进行曝光，然后在偏光显微镜下外加电压观察液晶盒的平面显示变化现象，发现四号高分子的液晶溶液在3%时，可以明显观察未被光罩遮蔽的高分子将会聚合形成高分子格子结构，并造成液晶成高倾角排列，顺著光罩形成不连续的结构藉以影响墙周围的液晶，从光电量测结果显示，利用此种不连续结构不仅可将内部液晶结构维持在twist的状态，也成功提升OCB原有的响应速度。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。