查询词典 block polymer

In this paper research of functional block structure was based on the theory of rheology of the polymer melt and the basic requirement of extrusion die channel.

本论文对于功能块的研究，是以聚合物熔体的流变学理论，以及挤出模头流道的基本要求为基础。

However, their degree of associative thickening behavior was closely related to the hydrophobe content X H and block size N H of polymer.

然而它们缔合作用的增粘程度却与聚合物疏水体含量 X H及疏水嵌段尺寸 N H有关。

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。

Monomers A monomer is the basic building block of polymers.The word mer (from the Greek meros,meaning part) indicates the smallest repetitive unit,similar to the term unit cell in crystal structures.Thus,polymer means many mers or units.Monomers are organic materials.They include carbon atoms joined in covalent bonds with other atoms such as hudrogen,oxygen,nitrogen,fluorine,chlorine,silicon,and sulfur.

单体 单体是基本积木的polymers.the字经（从希腊美罗斯，这意味着部分）显示，最小的重复单位，类似的任期股细胞在晶体structures.thus ，高分子意味着许多市场汇率或units.monomers是有机materials.they包括碳原子加入共价键，与其他原子如hudrogen ，氧气，氮气，氟，氯，硅，硫。

The sizes of the self-assembly micelles of the amphiphilic block copolymers and the effects werestudied by dynamic light scattering and UV-visible spectrophotometer. The micelle sizes werelargely influenced bythe hydrophobic chain content in the copolymer, the properties of the solvent and the copolymer concentration in the organic phase. The morphology of the micelles was investigated by transmission electron microscopy. Theresults showed that the micelles appeared spheres with inner core and outer shell. The critical association concentrations were determined by pyrene monomer fluorescence probe technology. The degradability of copolymer was studied by the loss of the intrinsic viscosity in the degradation process. The results indicated that the degradation rate of PECL was slower thanthat of PELLA and PEDLLA. The stability of the copolymer micelle dispersion was examined by measuring the critical flocculation concentration, which gradually decreased with increasing the content of thehydrophobic chain in the copolymer. The rheological results showed thatthe viscosity ofthe micelle dispersion with higher content of PEG segments was firstly decreased and then increased with the increasingthe temperature. Otherwise, the variation of viscosity was irregular. The viscosity of the micelle dispersion increased with the increase of the electrolyte (Na 2SO 4) concentrations. Polymer micelles paclitaxel was prepared by self-emulsification/solvent evaporation method and solid dispersion technique with amphiphilic block polymers as the carrier material.

运用动态光散射和紫外分光光度计研究了两亲性嵌段共聚物自组装胶束的粒径及其影响因素，结果表明，自组装胶束的形成机理受制备方式的控制，胶束的粒径随着共聚物相对分子质量或疏水嵌段相对分子质量和有机相中共聚物浓度的增大而增大，随着有机溶剂的水溶性的增强而减小；采用透射电镜观察胶束的形态结构，发现胶束呈具有核壳结构的均匀球形；采用芘荧光探针法测两亲性嵌段共聚物的临界聚集浓度；通过降解过程中共聚物特性粘度的变化研究两亲性共聚物的降解性能，发现与PELLA和PEDLLA的相比，PECL 降解速率较慢；随着共聚物中疏水嵌段含量的增大，纳米分散液的稳定性逐渐下降；PEG含量高的PEDLLA纳米分散液随着温度的升高，纳米分散液的粘度先下降然后增大，反之，没有规律性，且随着电解质Na 2SO 4浓度的增大，体系粘度增大。

Discolouration is due to an increase in the MAn monomer ratio of the increase, the product of an increase in the proportion of MAn, with the reaction of a polymer containing MAn more supercritical carbon dioxide from the medium of precipitation down in the cauldron at the end of a solid block.

变黄是由于增加单体配比中MAn含量的增多，产物中MAn的比例增加，随反应的进行含有MAn较多的聚合物从超临界二氧化碳介质中沉淀下来，在釜底形成块状固体。

The method for starting the high temperature polymer electrolyte membrane fuel cell stack preheats the stack through a heating block coupled to the stack, senses the temperature of the stack, compares the sensed temperature of the stack with a reference temperature, and supplies off-gas from the fuel reformer to the stack according to the results of comparison.

该启动高温聚合物电解质膜燃料电池堆的方法通过与电池堆相连的加热块预热电池堆，检测电池堆的温度，将检测到的电池堆的温度与参考温度进行比较，并根据比较结果向电池堆提供来自燃料重整器的废气。

Subsidiary, a total of four business segments: one is just listed kyoko resources, mainly the production of Glauber's salt-based; another one is based on the Proton in the heavy industry in Sichuan Xinjin mainly involved in special vehicles, bridge components, building machinery, new energy, petrochemical equipment industry, Hyundai Heavy Industries Company; third block is based on the production of new materials of special polymer-based PPS, in Shuangliu, Deyang has 31,000 tons production base, this piece of or will be available in September of this year; fourth block, then is the main oil-producing machinery and equipment company, is currently settled in places are being selected, which may be settled in Nanchong in Sichuan.

而腾中重工的母公司四川华通投资控股有限公司的实际掌门人就是李炎。在李炎控制的四川华通投资控股有限公司旗下，共有四大业务板块：一块是刚刚上市的旭光资源，主要以生产芒硝为主；另外一块是以四川新津的腾中重工为主，涉足特种车辆、道桥构件、建筑机械、新能源、石化设备产业的现代重工企业；第三块则是以生产PPS高分子特种新材料为主，在双流、德阳拥有3.1万吨产量的基地，这块或将于今年9月份上市；第四块，则是以生产石油机械设备为主的公司，目前落户地正在选择当中，可能会落户于四川南充。

Results indicated that fluorinated chain block is incorporated into the macro molecule chain of the polymer successfully. The composite emulsion has a stable core-shell structure. The interface composed of fluorinated acrylate chain blocks are formed on the film surface and the incorporation of FA blocks increase the contact angle between PUA film and water from 65° to 98°.

结果表明，含氟链段成功接入了大分子链中，乳液形成稳定的核-壳结构，在膜材料表面形成了主要由含氟丙烯酸酯链段组成的界面， FA 的引入可使复合乳液胶膜与水的接触角（ PUA 膜与水的接触角）由65°提高至98°。

The plastic alloy is refers to two kinds of or two kind of above polymers becomes the microscopic phase splitting macroscopic even multi-components system through some way blending, the plastic alloy both includes the product of the pure physics blending, and includes block, the graft copolymer as well as the polymer compound material which the chemical change becomes during the course of milling.

塑料合金是指两种或两种以上聚合物通过某种方式混合而形成微观分相宏观均匀的多组分体系，塑料合金既包括单纯的物理混炼产物，又包括嵌段、接枝共聚物以及混炼时发生化学变化而成的聚合物复合材料。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。