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It was found that copolymerization of selected acetylenes with different polarity by using palladium acetylide complex catalysts is an effective method for improving solubility of polymers, especially doped polymers, which makes the above mentioned polymers and doped ones a new type of π-conjugated sensing material for preparation of thin film humidity sensor.

研究发现,以新型过渡金属钯-炔配合物为催化剂,通过选择具有不同极性的取代乙炔单体进行共聚,可有效地提高聚合物的溶解性,尤其掺杂聚合物的溶解性,实现可溶酸掺杂,继而开发出上述系列新的π-共轭型聚炔湿敏材料,用以制备薄膜型湿敏元件。

Exposed argentite could be dissolved in thiourea acidified by sulphuric acid ,since native Ag is not dissolved in non-oxidizing inorganic acids , hydrochloric acid was used to dissolve the sphalerite and to soak out the argentite which was enveloped in sphalerite .

继以硫酸酸化的硫脲溶剂溶解裸露的辉银矿,然后根据自然银在非氧化性的无机酸中不溶的特性,采用盐酸溶解闪锌矿并浸

The effects of sodium laurylsulfonate and butanol on upper critical solution temperature s for water-phenol were studied by means of cloud point.

浊点法研究了十二烷基磺酸钠和正丁醇对水-苯酚系统上临界溶解温度的影响,结果发现在试验的浓度范围内,该系统的上临界溶解温度随十二烷基磺酸钠质量分数的增大而线性下降。

The solubility,rheological behaviors and flow of AMPS copolymer in core were experimented. The results indicate that the solubility is low,and salinity greatly influences the filterability of AMPS solution.

对AMPS共聚物的溶解性、溶液流变特性以及在岩心中流动进行的试验结果表明,其溶解性较差;矿化度对溶液的滤过性有较大的影响;在剪切速率。

The results were shown as following:(1)Compared with unsubstituted Pc, the introduction of carboxyphenoxy improves the solubility of four Pc derivates, and can be attributed to amphiphilic phthalocyanine. This property is most important for photosensitizer to transmit in vivo and enrich on the surface of tumors.

研究结果表明:(1)合成的四种酞菁与其它酞菁类衍生物相比,由于用羧基苯氧基对酞菁周边环进行了修饰,其溶解性能得到明显地改善,属于两亲性酞菁化合物,这种溶解特性适合其作为光敏剂在体内的传输和在肿瘤组织中的富集。

Degummed Bombyx mori silk was dissolved in a ternary solvent system of CaCl2/CH3CH2OH/H2O in 1∶2∶8 mole ratio at 60℃,and lyophilized SF was dissolved in 98% formic acid to obtain regenerated SF solution for electrospinning.

将脱胶后的桑蚕丝溶解在摩尔比为1:2:8 的60℃CaCl2/CH3CH2OH/H2O三元体系中,将该溶液冷冻干燥后溶解在98%的甲酸中得到再生丝素溶液,对其进行静电纺丝。

With the increasing of the dissolving temperature of the dopes, the diameter of the globules becomes larger.

综合铸膜液的溶解温度对膜性能的影响,铸膜液宜采用较低的溶解温度(50-70℃)。

Through strong turbulence in stilling basin the water with high concentration TDG mixes with the low concentration water, so dissolved gas in the part of water in stiffing basin become supersaturation.

指出由于水垫塘中气泡被带入水体深处,使得水体存在溶解度梯度,溶解度沿着水深方向增加,深处水体能溶解更多的气体,在水流的紊动掺混下,高浓度的溶解气体被带入到较浅水深处,造成部分水体TDG过饱和。

The results showed that Cd and Zn mainly occurred in the fractions extracted by BCR method, namely, weak soluble fraction, reducible fraction and oxidisable fraction, which were 35.0%, 49.7 and 12.9% for Cd, 17.6%, 16.6% and 21.4% for Zn, respectively, in surface sediment.

结果表明,表层沉积物中的Cd和Zn主要以可提取态(即弱酸溶解态、可还原态和可氧化态)存在,其中,Cd在弱酸溶解态、可还原态和可氧化态中的含量分别为35.0%、49.7%和12.9%;Zn在三者中的含量也分别达到了17.6%、16.6%和21.4%。

There are generally two main drawbacks in the currently reported methods of dissolving wool, one of which is the low efficiency of dissolving fibers; only the wool keratin solutions with low concentration, low viscosity, relatively low molecular weight and low conversion rate have been obtained; the other drawback is, as mentioned in many patents, the wool keratin solution needed to be concentrated, purified, and coagulated into wool keratin powder, through back-permeation, dialysis techniques, in order to facilitate the application in the subsequent processes.

目前研究报道的羊毛纤维溶解方法都普遍存在有两个主要缺陷:其一是对纤维的溶解效率低,只能获得低浓度、低粘度、较低分子量、低制成率的羊毛角蛋白质溶液;其二则是因浓度低而在多数专利中需要通过反渗透、透析方法使溶液浓缩、提纯、固化成羊毛角蛋白质粉末,以方便后续加工使用。

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