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solution temperature
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  溶解温度
    Poly(N-isopropylacrylamide) (PNIPA) hydrogel is a typical thermosensitive hydrogel with a lower critical solution temperature(LCST) around 33癈.
    聚(N一异丙基丙烯酞胺)(P NlpA)水凝胶是一种典型的温度敏感性水凝胶,相转变温度或较低临界溶解温度(LCST)大约在33℃左右。
短句来源
    Based on the critical solution temperature (CST) of thermoregulated phosphite ligand OPGPP(n=19) in organic solvents of heptane/toluene (volume ratio 0.6), phosphite ligand OPGPP was synthesized and the complex of OPGPP and transition metal catalyst was applied to thermoregulated phase-separable catalysis for the first time, which further widen the basis and application range of thermoregulated phase-separable catalysis.
    本文基于温控亚磷酸酯型膦配体OPGPP(n=19)在有机溶剂正庚烷/甲苯(体积比为0.6)中存在临界溶解温度的特性,合成了亚磷酸酯型膦配体OPGPP,并首次将OPGPP/过渡金属配体物催化剂用于温控相分离催化体系中,进一步拓展了温控相分离催化的立论依据和应用范围。
短句来源
    Poly(N isopropylacrylamide) (PNIPAM) and acenaphthylene (ACE) labeled PNIPAM (PNIPAM/ACE) have been synthesized by free radical method. The salt effect on the low critical solution temperature (LCST) of PNIPAM has been systematically investigated.
    通过自由基聚合法合成了温度敏感聚N 异丙基丙烯酰胺 (PNIPAM )和苊烯(ACE )标记的聚N 异丙基丙烯酰胺 (PNIPAM /ACE) ,系统考察了外加盐对PNIPAM水溶液最低临界溶解温度 (LCST)的影响 .
短句来源
    Therefore, the florescence intensity at 307 nm was increased by 314% and the antibacterial activity was presented in Mn2+-PNIPAM complex, while the lower critical solution temperature of PNIPAM was not changed.
    因此,在307nm紫外区荧光强度比PNIPAM增强了314%,使该配合物表现出较好的抑菌效果,而此时少量Mn2+对其低临界溶解温度(LCST)影响不大。
短句来源
    The results suggest that when the mass fraction of NHMAA is below 5.25%, the lower critical solution temperature (TLCS) decreases with the increasing of mass fraction of NHMAA.
    结果发现,当P(DEA-co-NHMAA)中NHMAA的质量分数小于5.25%时,随着NHMAA含量的增加,其最低临界溶解温度(TLCS)下降;
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  “solution temperature”译为未确定词的双语例句
    In this paper, a large HHM single crystal of dimensions 60mm X 40mm X 3mm was obtained in the benzene solution by lowing the solution temperature.
    本文以苯为溶剂溶液降温法培养出了60mm×40mm×3mm大尺寸HHM单晶;
短句来源
    Their SR(20℃C) decreased and the lower critical solution temperature(LCST) increased with increase of r, and the LCSTs of poly (NIPA-co-GMA-Dex) gels are all higher than that of PNIPA gel(32℃).
    室温(20℃)时,P(NIPA-co-GMA-Dex)凝胶具有较高的溶胀率,而且r越大,凝胶的溶胀率越小。 P(NIPA-co-GMA-Dex)凝胶的LCST均大于PNIPA凝胶的LCST(32℃),并且随r的增大而增大。
短句来源
    The experiment showed that gold catalysts prepared by deposition precipitation method when the gold concentration around 0.0097 mol/L, the pH value of chloroauric acid solution at 8, solution temperature at 80℃, the calcination temperature at 300℃, the activity of Au/13X was better.
    试验结果表明:以氯金酸为前驱体,采用沉积沉淀法制备Au/13X催化剂时,氯金酸的浓度为0.0097mol/L,液相浸渍温度为80℃,浸渍液pH值为8,焙烧温度为300℃的条件下得到的催化剂表现出较高催化活性。
短句来源
    The electroreduction of Np(Ⅴ) is studied in the N2H5NO3-Fe (Ⅲ) -HNO3 system. Various factors effecting the electrolytic reduction rate of Np(Ⅴ) are studied, and they are acidity of feed solution, temperature, hydrazine and iron ion concentration etc.
    本文研究了N_2H_5NO_3-Fe(Ⅲ)-HNO_3体系和模拟强放废液中Np(Ⅴ)的电解还原,讨论了酸度、温度、肼和铁浓度对Np(Ⅴ)电解还原速度常数和还原率的影响。
短句来源
    The suitable concent-ration of luminol soolution should be 7×10~(-8) mol/ml and a high ratio of signal tonoise can be obtained when solution temperature is in the range of 15-25℃ The rangessuitable for dose measurement have been evaluated based on dose responce characteri-stic of these saccharides.
    鲁米纳溶液的最佳浓度在7×10~(-3)mol/ml,并且其温度控制在15—25℃范围有较高的信噪比。
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  solution temperature
Moreover, the lower critical solution temperature (LCST) of the graft copolymer in aqueous solution was dependent on its grafting extent and concentration.
      
Copolymers of N,N-diethylacrylamide and N-acryloylphthalimide with a lower critical solution temperature (LCST) were synthesized by radical copolymerization.
      
Dynamic membranes were prepared from poly(N-isopropylacrylamide-co-heptadecyl vinyl ketone) having a lower critical solution temperature in an aqueous solution and being a micelle-forming surfactant.
      
The dependence of the critical concentration of the copolymer micellization on temperature was shown to have an extreme character, with a minimum at the lower critical solution temperature of the copolymer.
      
Other techniques for solving the above problem, namely, an increase in the temperature of the test solution temperature or the use of solvent extraction, bioaccumulation, and unusual analytical procedures are also considered.
      
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The years before 1965 We had taken the investigation of the effects of salt on the miscibility for benzene-mthanol system. We discovered salts such as NaI, NaClO_4, NaSCN and NH_4I, which dissolve in methanol but sparingly soluble in benzene can turn the benzene-methanol system to a partial miscible one (a two phase system of three components). In addition, We found also that there exist a fair linear relation between the amount of salt added and the miscible temperature of the partial miscible system formed...

The years before 1965 We had taken the investigation of the effects of salt on the miscibility for benzene-mthanol system. We discovered salts such as NaI, NaClO_4, NaSCN and NH_4I, which dissolve in methanol but sparingly soluble in benzene can turn the benzene-methanol system to a partial miscible one (a two phase system of three components). In addition, We found also that there exist a fair linear relation between the amount of salt added and the miscible temperature of the partial miscible system formed by adding the above salts to benzene-methanol mixture with a fixed molecular ratio. The upper end of such straight lines lies on the binodal curve developed by salt saturation, while the lower end lies on the intrinsic coexistanc(?) curve with the amount of salt equals to zero. The benzene-methanol system, when saturated with NaI, goes form complete miscibility to a par- tial miscible system with an upper critical solution temperature at 130.5℃, but when extrapolated by using the straight lines to zero amount of salt, the intrinsic coexistance curve obtained with U. C. S. T. within the region -60℃~-70℃. Recently, for comparison we recalculated the data of salts in cyclohexane-methanol system, which had studied early by Eckfeldt and Lucasse in 1945. Not only the straight line relationship still present, but also the extrapolated no salt coexistance curve coinsides with the experimental curve of this partial miscible system in ordinary pressure almost completely. According to Prigogine, the following (((?)T)/((?)x3))_c=-1/(2R)((α_(AB)-α_(AS)+α_(BS))(α_(AB)-α_(BC)+α_(AS)))/α_(AB) gives the variation of the eritical solution temperature of a strictly regular solution caused by the addition of a third component. For the α's all are constants, thus this equation represents the li- near relation between temperature variation and the amount of the third oomponent being added. But, although this equation is in fact derived from the critical point of a strictly regular solution, there no reasons to consider it can not serve to any other points on the coexistance curve. Furth- ermore, verified by many experiments, this linear relationship can hold satisfactory for many com- mon binary liquid solutions no matter what special kinds the solution must belong. Therefore the above equation can be written as T=mX_s+T_o by rejecting the restrictions, where m is related to constants α_(AB), α_(AS) and α_(BS).

1965年以前,作者曾研究过一系列盐类(如NaI、NaCIO_4、NaSCN和NH_4I)对苯—甲醇体系混溶性的影响。发现这些能溶于甲醇而在苯中微溶的盐类,会使苯—甲醇体系成为部分混溶。还发现,当两种液体的分子比固定时,加入能引起分层的盐量与其相应的分层温度之间,存在有良好的线性关系。这些直线的上端,位于盐饱和溶液的分层温度曲线上,而下端则可外推至无盐时的分层曲线。苯—甲醇体系,以NaI饱和时即由完全混溶变为部分混溶,上临界温度是130.5℃,但若将直线外推至盐量为零时,其上临界温度约为-60℃~ 70℃。最近,为了进行比较,我们根据 Eckfeldt和Lucasse的工作,重新计算了环己烷—甲醇体系中盐的数据。不仅直线关系仍然存在,而且外推至无盐时的曲线,与常压下这种部分混溶体系的实验曲线几乎完全重合。根据 Prisosine有关加入第三种组分所引起严格正规溶液临界溶解温度改变的关系式,可从热力学分析得到线性方程式T=mXs+T_O,该式的应用范围,不限于严格正规溶液,也不限于临界温度,具有普遍意义。

In previous work the linear relation between the amount of a certain salt added and the miscible temperature has been found for the non-polar-polar binary liquid system. In this paper we will further prove that above linear relation can also be applied to polar-polar binary liquid system by investigating acetone-wa- ter-sodium sulfate system. In addition, the t-X_(Na_2SO_4) lines have been extrapolated to zero amount of salt and a series of t_0 values obtained. From these data the upper critical solution curve...

In previous work the linear relation between the amount of a certain salt added and the miscible temperature has been found for the non-polar-polar binary liquid system. In this paper we will further prove that above linear relation can also be applied to polar-polar binary liquid system by investigating acetone-wa- ter-sodium sulfate system. In addition, the t-X_(Na_2SO_4) lines have been extrapolated to zero amount of salt and a series of t_0 values obtained. From these data the upper critical solution curve is plotted, the critical solution temperature is about-47℃ and its correspon- ding component X_(CH_3COCH_3) 0.18. As might be expected our experimental results are clearly in accord with the qualitative rules of Timmermans and the quantita- tive treatment of prigogine.

前期工作中,曾发现在非极性-极性双液体系中,加入某种能引起该体系分层的盐量与其相应的分层温度之间,存在有良好的线性关系。本工作通过对丙酮-水-硫酸钠体系的实验研究,进一步证实极性-极性双液体系亦能符合上述直线规律。此外,将t-M_Na_2SO_4直线外推至盐量为零,得到丙酮-水体系的上临界混溶曲线,其上临界温度约为—47℃,相应组成XCH_3COCH_3约为0.18。上述实验结果,与Timmermans的定性规律和Prigogine的定量处理一致。

The critical micelle concentration (CMC) of three kinds of polyoxyethylene-polyoxypro-pylene block copolymer-L64, AE21, AP221 has been measured by surface tension and ben-zopurpurine uptake. Results showed that L64 and AE21 form monomolecular micelles atlow concentration and aggregated micelles at high concentration, while AP221 only formsaggregated micelle at low concentration. Measurement of CMC at different temperatureshowed that in aqueous solution temperature has little effect on the CMC of L64 for...

The critical micelle concentration (CMC) of three kinds of polyoxyethylene-polyoxypro-pylene block copolymer-L64, AE21, AP221 has been measured by surface tension and ben-zopurpurine uptake. Results showed that L64 and AE21 form monomolecular micelles atlow concentration and aggregated micelles at high concentration, while AP221 only formsaggregated micelle at low concentration. Measurement of CMC at different temperatureshowed that in aqueous solution temperature has little effect on the CMC of L64 for monomo-lecular micellization, but has marked effect for aggregated micellization which decreasessharply with increase of temperature. Heat of formation of aggregated micelle has a largevalue, of 140. 6kJ/mol.

本实验采用表面张力法,苯红紫可见光吸收法测定L64,AE32,AP221等三种不同结构的聚氧乙烯-聚氧丙烯嵌段共聚物的临界胶束形成浓度CMC,发现L64与AE32在低浓度下形成单分子胶束,在高浓度下形成聚集胶束。AP221则只在较低的浓度下形成聚集胶束。不同温度下CMC的测定结果表明温度对L64形成单分子胶束的CMC影响较小,而聚集胶束的浓度则随着温度升高而迅速下降,后者胶束形成热ΔH较高,为140.6kJ/mol。

 
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