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衍射光谱

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Collagen-chitosan-polyvinyl pyrrolidone blend film s were prepared successfully by solution method,and characterized by FT-IR,X-ray diffraction and optical transmittance.

利用溶液共混法成功制备了新型生物膜材料——胶原蛋白—壳聚糖—聚乙烯吡咯烷酮共混膜,通过红外光谱、X-射线衍射和透光率测试表征了共混膜的结构,同时测定了共混膜的力学性能,考察了溶液pH值对共混膜吸水率的影响。

Compared with non-nanopolyaniline synthesized by conventional emulsion polymerization, nanopolyaniline has the narrow and uniform distribution of particle dimension and the diameter of particle is about 4-5nm,and the conductivity reaches 3.2S·cm-1, which is more than 100 times higher than that of nanopolyaniline;Moreover, it has higher solubility in conventional solvent and the solubility reaches 95% in N-methyl pyrrolidone;what's more ,it has higher crystallinity and more uniform crystal proved by XRD, apparent blue shift indicated by UV, which makes it possible to prepare transparent conductive composite films.

结果表明,微乳液法合成的纳米聚苯胺与常规乳液法合成的非纳米聚苯胺相比,具有明显的优越性:粒径分布窄,95%的在10nm 以下,最大的不超过30nm;电导率较高,达到了3.2S/cm,提高了2 个数量级以上;在有机溶剂中的溶解度较高,其中在N-甲基吡咯烷酮中的溶解率达到了95%;X 射线衍射仪分析表明,纳米聚苯胺结晶度高,晶型更为规整;紫外可见光谱研究发现,纳米聚苯胺在可见光区有明显的蓝移,为制备透明的导电复合膜提供了可能。

It is a new technique to synthesize SAPO 34 molecular sieve using cheap triethylamine (Et 3N) as the template, and the selectivity of this molecular sieve for ethene and propene can be improved further.

采用X射线衍射、扫描电镜、氨吸附红外光谱及核磁共振等表征手段,研究了以氟化氢三乙胺为复合模板剂合成的SAPO 34分子筛。

When theresin concentration exceed 10%,three types of recovery swelling experiment indicate that thetransverse compressive deformation was almost 100% fixed.The X-ray and FTIR spectra ofcompressive wood treated by PF show that the width of crystalline region and crystallinitywas hardly changed comparing with untreated wood;Esterified carbonyl degree at 1736cm-1and the end carbon degree of semicellulose at 897cm-1 increased.

当树脂浓度超过10%时,三种循环膨胀实验证明,木材横纹压缩变形几乎100%被固定。X-射线衍射谱图和FTIR光谱表明,PF预聚物处理后的压密材同素材相比,结晶区的宽度和结晶度几乎没发生改变;1736cm-1处酯化羰基峰强度增加,897cm-1处半纤维素异头碳(C1)峰强度增加。

Infrared spectrum, X-ray diffraction, transmission electron microscopy and conductivity measurement were employed to investigate the properties and structure of polyaniline samples, which were synthesized by emulsion polymerization with different concentrations of ammonium peroxydisulfate and dodecyl-benzene sulphonic acid.

采用红外光谱、X射线衍射、透射电子显微术结合电导率测量,研究了以过硫酸钱为氧化剂,十二烷基苯磺酸为掺杂剂,通过乳液聚合法合成的聚苯胺的性能与结构。

Two organosulfonate complexes, [M22]·H2O (M=Cd 1, M=Pb 2), were obtained from the reaction of 1,10-phenanthroline, sodium 4-aminonaphthalene-1-sulfonate tetrahydrate and Cd2·2H2O or Pb (NO3)2 in a mixed solvent of water and methanol at 25 ℃. The compounds were characterized by elemental analysis, IR, and X-ray diffraction single crystal structure analyses.

合成了2个新型有机磺酸配合物,[Cd22]·H2O(1)和[Pb22]·H2O(2)(phen=1,10-邻菲咯啉,ans=4-氨基-1-萘磺酸根),通过元素分析、红外光谱等对配合物进了表征,用X-射线单晶衍射方法测定了配合物的单晶结构。

In this article, three novel cyclopalladated ferrocenylimine triphenylphosphine complexes 2-4 were easily synthesized and characterized by elemental analysis, IR, 1H NMR, 31P NMR and X-ray single crystal diffraction.

为筛选高效催化Suzuki反应的催化剂,合成了3种新的环钯化二茂铁亚胺-三苯基膦配合物2~4,经元素分析、红外光谱和核磁共振谱对其结构进行了表征,并通过X射线单晶衍射测定了化合物3的晶体结构。

One mixed-ligand complex ofnH2Otpa=terephthalate, tripy=4'-(4methyoxyphenyl-2,2':6',2-terpyridine was synthesized and characterized by IR, elemental analysis and thermo-gravimetric analysis. The crystal structure of the product was established by single-crystal X-ray diffraction.

采用水热法合成了新的维链状锌的配位聚合物nH2O(tpa=对苯二甲酸,tripy=4'-(4-甲氧基苯基)-2,2':6',2-三联吡啶),通过红外光谱和元素分析对该配位聚合物进行了结构表征,用X射线单晶衍射测定了晶体结构。

Mesoporous zincum sulfide is synthesized by gentle wet chemosynthesis method, with DDA as templates and Zinc acetate and TAA as precursors. The effect to the synthesis of the ratio of reactive components, the volume of pH, reactive time and reactive temperature has been dicussed systematically, and structures of the as-synthesized samples have been characterized by X-ray diffraction, N2 adsorption-desorption, scanning electron microscopy, Fourier transform-infrared spectra, UV-vis diffuse reflectance spectroscopy, transmission electron microscopy.

以十二胺为模板,醋酸锌及硫代乙酰胺为前驱体,温和湿化学法合成了硫化锌无序介孔结构,系统研究了反应物配比、pH值、反应温度、反应时间对材料合成的影响,运用X射线衍射、N2吸附-脱附、扫描电镜、红外光谱、紫外-可见吸收光谱、透射电镜等分析手段对介孔材料的结构进行了详细的表征。

Mechanical properties of homopolymerized and copolymerized polypropylenes were compared and effect of ultraviolet radiation on their mechanical properties, infrared spectrum and X-ray diffraction was studied.

对比了均聚级和共聚级聚丙烯的力学性能以及紫外辐照对其力学性能、红外光谱和X射线衍射的不同影响。

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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.

然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。

A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.

付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。