助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   solution of polymer 在 有机化工 分类中 的翻译结果: 查询用时:0.553秒
图标索引 在分类学科中查询
所有学科
有机化工
石油天然气工业
化学
环境科学与资源利用
更多类别查询

图标索引 历史查询
 

solution of polymer
相关语句
  “solution of polymer”译为未确定词的双语例句
    Unsaturated polyester resin (UPR) is a solution of polymer condensed by saturated di-alcohols and di-acids (including saturated and unsaturated di-acids) solved in active monomers (such as styrene).
    不饱和聚酯树脂(UPR)是由饱和的二元醇与饱和的及不饱和的二元酸缩聚而成的聚合物在活性单体中的溶液。
短句来源
    the viscosity of dilute solution of polymer decreases when NaCl is added, but that of semi-dilute one increases;
    NaCl的加入使得溶液的粘度下降,但适当结构的聚合物表现出较好的抗盐能力;
短句来源
查询“solution of polymer”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  solution of polymer
For V >amp;gt; Vc, sliding is homogeneous and friction is ruled by the shear-thinning rheology of an interfacial layer of thickness of order the (nanometric) mesh size, containing a solution of polymer chain ends hanging from the network.
      
Using k-ε model of turbulence and measured wall functions, turbulent flows of Newtonian (pure water) and a sort of non-Newtonian fluid (dilute, drag-reduction solution of polymer) in a 180-degree curved bend were simulated numerically.
      
The solution of polymer was dried as a film and then it was dissolved in DMSO.
      
In this process the dry active material and conductive carbon are mixed and then dispersed in a solution of polymer and solvent, NMP.
      
It involves sequentially dipping a substrate alternately into solutions containing species to be adsorbed and a solution of polymer.
      


In our work, three series of polyurethane/liquid crystal composite membranes were prepared based on three different kinds of liquid crystal compounds[N (4 methyoxybenzylidene) 4′ heptylaniline(MBHA), 4 pentyl 4′ nitrile biphenyl(PNP) and cholesteryl oleyl carbonate(COC)] by casting on polytetrafluoroethylene(PTFE) plates from a tetrahydrofuran(THF) solution of polymer and liquid crystal at room temperature. The result of this work shows that the content of liquid crystal in composite membrane must...

In our work, three series of polyurethane/liquid crystal composite membranes were prepared based on three different kinds of liquid crystal compounds[N (4 methyoxybenzylidene) 4′ heptylaniline(MBHA), 4 pentyl 4′ nitrile biphenyl(PNP) and cholesteryl oleyl carbonate(COC)] by casting on polytetrafluoroethylene(PTFE) plates from a tetrahydrofuran(THF) solution of polymer and liquid crystal at room temperature. The result of this work shows that the content of liquid crystal in composite membrane must be more than 30 mass% in order to form liquid crystal phase on the composite membrane surface. The observation of platelet adhesion shows that the amount of platelets are adherent on the surface covered by the liquid crystal phase is fewer than that of pure polyurethane film when platelet rich plasma is allowed to contact with the membranes for 1 h at room temperature. The determinant of dynamc blood clotting time and hemolysis ratio show that these polyurethane/liquid crystal composite membrances, in which the content of liquid crystal is more than 30%, appear to be beneficial in improving the anticoagulation.

以聚醚型聚氨酯为基质材料 ,分别与向列型和胆甾型液晶化合物在适当溶剂中溶解共混后 ,利用溶剂蒸发法在聚四氟乙烯板上浇铸成膜。研究了复合膜中的液晶含量和成膜条件对复合膜表面结构形态的影响 ,同时详细研究了液晶含量对复合膜动态凝血性能、血小板粘附性能以及溶血性能的影响。研究结果表明 ,只有当复合膜中的液晶质量份数超过 30 %时 ,复合膜才表现出良好的抗凝血性能 ,且随液晶含量的增加而复合膜的抗凝血性能有明显的改善 ,尤其是复合膜表面吸附的血小板数量随液晶含量的增加而明显减少

Amphiphilic block copolymers have many unique physical and chemical properties,especially stronger self-assembling ability,because of amphiphilic property and microphase separation of their molecules.In this investigation,the amphiphilic block copolymers of acrylamide(AM) and styrene(St) were prepared in microemulsion medium.One series of copolymers PAM-b-PSt was synthesized by changing the feed ratio under remaining other copolymerization conditions invariable.The apparent viscosity of the aqueous solutions...

Amphiphilic block copolymers have many unique physical and chemical properties,especially stronger self-assembling ability,because of amphiphilic property and microphase separation of their molecules.In this investigation,the amphiphilic block copolymers of acrylamide(AM) and styrene(St) were prepared in microemulsion medium.One series of copolymers PAM-b-PSt was synthesized by changing the feed ratio under remaining other copolymerization conditions invariable.The apparent viscosity of the aqueous solutions of copolymers samples were measured using a rotational rheometer.The effects of various factors on apparent viscosity,such as concentration of polymer,composition of copolymer,shear rate,temperature and salt concentration,were investigated in detail.The studying results show that there is strong hydrophobic interaction between the block suctions of PSt in the macromolecules of PAM-b-PSt,so that stronger intermolecular hydrophobic associations are formed in aqueous solution and above a critical polymer concentration(about 0.2%,wt%).The intermolecular association leads to network structures and the hydrodynamic size of chains is increased,so the amphiphilic block copolymer PAM-b-PSt exhibits good thickening property.The another reason leads to good thickening property of PAM-b-PSt is that introducing of phenyl groups of styrene significantly enhanced the viscosity.Besides,under increasing shear ,the physical links between chains are disrupted,but recover with decreasing shear,and also the associations are enhanced by the application of shear.The reversibility of the rheological property can to avoid the irreversible mechanical degradation.Therefore,the reversible association/dissociation process gives rise to particular rheological behaviors for PAM-b-PSt.Because hydrophobic association is endothermic,the intermolecular association is favoured by increasing the temperature,and so PAM-b-PSt has the withstanding temperature property.The containing of salt in aqueous solution of polymer can increase the polarity of the solvent,and the effect favoured the intermolecular association.As a consequence,the solution of the block copolymer PAM-b-PSt has salt resistance.Above described excellent properties of amphiphilic block copolymer PAM-b-PSt will leads to its wide commercial application.

通过改变丙烯酰胺 (AM)与苯乙烯 (St)两单体的投料比 ,在微乳液介质中制备了分子组成系列变化的丙烯酰胺 苯乙烯双亲嵌段共聚物 (PAM b PSt) ,使用旋转粘度计测定了共聚物水溶液的表观粘度 ,详细考察了共聚物浓度、共聚物链结构、剪切速率、盐度及温度等因素对共聚物水溶液表观粘度的影响规律 .研究结果表明 ,由于PAM b PSt分子链中的PSt疏水嵌段链段之间具有强的疏水缔合作用 ,导致其具有独特的流变性能 .当共聚物水溶液的浓度高于某一临界值后 ,疏水缔合作用以分子间的缔合为主 ,大分子链之间会形成动态物理交联网络 ,增大了流体力学体积 ,使PAM b PSt水溶液可产生良好的增稠性能 ;疏水缔合作用是一吸热过程 ,升高温度有利于分子间的缔合 ,因此PAM b PSt水溶液具有良好的耐温性 ;聚合物水溶液中盐类物质的存在 ,会增强溶剂的极性 ,有利于分子间的缔合 ,使PAM b PSt水溶液具有良好的耐盐性 .

A novel method for designing water-soluble polymer molecules and selecting cosolvents by using inorganic(I) and organic(O) values of compounds was put forword, this is, I/O of water-soluble polymers should be more than l, I/O of an ideal cosolvent should be closed to that of the polymer. The results of test support the criterion and show that viscosity-peak phenomenon of the aqueous solution of polymers is caused by poor water-solubility of polymers. The method may be used for...

A novel method for designing water-soluble polymer molecules and selecting cosolvents by using inorganic(I) and organic(O) values of compounds was put forword, this is, I/O of water-soluble polymers should be more than l, I/O of an ideal cosolvent should be closed to that of the polymer. The results of test support the criterion and show that viscosity-peak phenomenon of the aqueous solution of polymers is caused by poor water-solubility of polymers. The method may be used for development of waterbased polymer products such as paints, adhesives.

提出了一种用化合物的无机值(I)和有机值(O)设计水溶性聚合物和选择助溶剂的新方法。聚合物溶于水的条件是其I/O>1,理想助溶剂的I/O应该与聚合物的I/O接近。试验结果证明该判据是正确的。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关solution of polymer的内容
在知识搜索中查有关solution of polymer的内容
在数字搜索中查有关solution of polymer的内容
在概念知识元中查有关solution of polymer的内容
在学术趋势中查有关solution of polymer的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社