查询词典 ionomers

Therefore,it is necessary to develop new routes to prepare anion exchange membranes without such chloromethylation process.As for cation exchange membranes, mostly-perfluorinated sulfonic acid ionomers,such as Nafion~ series,have been wildly used due to their high proton conductivity and substantial durability.

对于强碱性的阴离子交换膜的制备，由于传统路线中的卤甲基化步骤中不可避免的采用强致癌物质二氯甲醚，因此无论是从经济成本还是环境保护方面，开发不采用氯甲基化步骤的阴离子交换膜制备方法是目前的一个迫切要求。

Meanwhile,the behavior of the complexation between the sulfonated SEBS ionomers and pyriding-containing random coploymers both in dilute solution and in bulk was evidenced by an abnormal increase of the viscosity and Tg .

SEBS磺酸盐离聚物与含吡啶基的无规共聚物在稀溶液和本体中能形成分子间的络合物，这从共混物溶液粘度的反常增大和本体Tg的显著增加得到了证明。

The kinetics of isothermal crystallization has been studied for Na+,Mn2+ and Ca2+ ionomers based on maleic anhydride graft polypropylene by DSC,compared with pure PP and PP g MAH.

采用DSC对马来酸酐接枝聚丙烯及其3种5个离聚物的等温结晶行为进行了研究，发现在相对结晶度2％～90％的范围内符合Avrami方程。

Moreover, zinc salts of sulfonated polysulfone ionomers and maleic anhydride graft polysulfone also show better compatibilizing effects on PSF/TLCP.

此外，用磺化聚砜锌盐和马来酸酐接枝聚砜增容剂也取得了较好的增容改性效果。

Thermotropic main-chain liquid crystalline ionomers containing sulfornate groups was synthesized with liquid crystalline polymer and hydroxyl-azobenzensulfonic acid.

采用溶液缩聚法将活性端基为TPC的液晶聚合物与对羟基偶氮苯磺酸反应制得端基为磺酸基的遥爪主链液晶离聚物。

All ionomers had higher rate of nucleation, characterized by the higher values of Si, overall rate of crystallization, characterized by the higher values of (Tmax-T0), and narrower crystallite size distribution, characterized by the lower values of Δw, than those of pure PP and PP-g-MAH.

对于全部样品在所有的冷却速率下，Avrami指数n值均在2.5-2.8之间，说明聚丙烯结晶行为没有改变；但同时发现接枝及离子化后，成核速率加快，晶粒分布变窄，结晶总速率增大，与等温结晶动力学得到的结论一致。

Titanium alloy and dentin specimens were bonded with KetacTM Cem Easymix ionomers. All bonded specimens were stored for 24 hours at 37 ℃. The microtensile bond strength was measured through the use of universal testing machine. The fractured surface of titanium alloy was observed under scanning electron microscopy.

利用Ketac TM Cem Easymix玻璃离子水门汀将打磨后的钛合金铸件和牙本质粘接，经 37 ℃恒温水浴24 h后，用万能试验机检测其微拉伸粘接强度，然后在扫描电镜下观察粘接断面形态。

In order to improve the compatibility of these blends while maintaining the length of the in-situ formed TLCP fibrils and thermal resistance properties of TLCP, several novel compatibilizers, such as block and graft polymers, sulfonate ionomers, reactive oligomers, have been used to compatibilize PSF/TLCP blend.

为了在改善原位复合体系相容性的同时尽量保持TLCP的成纤性和体系的耐热性，本文提出了用嵌段及接枝共聚物、磺化聚砜锌盐、带有高反应活性基的反应性低聚体、可交联型低聚物作为增容剂改进体系的相容性。

With regard to anion exchange membranes,the traditional preparation method involves a much complicated process—chloromethylation,in which the commonly used chloromethyl methyl ether and bis-chloromethylether are now considered carcinogens.Therefore,it is necessary to develop new routes to prepare anion exchange membranes without such chloromethylation process.As for cation exchange membranes, mostly-perfluorinated sulfonic acid ionomers,such as Nafion~?

对于强碱性的阴离子交换膜的制备，由于传统路线中的卤甲基化步骤中不可避免的采用强致癌物质二氯甲醚，因此无论是从经济成本还是环境保护方面，开发不采用氯甲基化步骤的阴离子交换膜制备方法是目前的一个迫切要求。

The compatibility depended onthe structure and content of the ion group in the polysiloxane ionomer, as well as thelevel of the ionomers. The surface composition of the cured epoxy resin modified by the polysiloxaneionomers HQAS-PDMS was analyzed by XPS. The results indicated the remarkableenrichment of polysiloxane chains on the surface of the cured epoxy resin.

用X-射线光电子能谱分析了硅氧烷离聚体HQAS-PDMS改性的环氧树脂固化物表面的化学组成，结果表明聚硅氧烷在环氧树脂固化物的表面发生明显富集且成梯度分布，其富集程度决定于硅氧烷离聚体与环氧树脂的相容性及成型基质表面能的高低。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐