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Decided relatively the craft condition of beautiful: IA occupies total monomer rub Er mark is 22%, 6.67% what cross ammonium sulphate dosage to be total monomer quality, reaction temperature ℃ of 80 ℃~85, acrylic acid and the drop that cross ammonium sulphate add time to be 2.5 H, heat preservation time is 3.5 H, total reaction time is 6 H.

确定了较佳的工艺条件:IA占总单体的摩尔分数为22%,过硫酸铵用量为总单体质量的6.67%,反应温度80℃~85℃,丙烯酸和过硫酸铵的滴加时间为2.5 h,保温时间为3.5 h,总反应时间为6 h。

Main component of composition of the negative type photoresistive agent is polyimide, which possesses pendent -COOH. Reaction between partial carboxylic acid group and monomer with glycidyl acrylate generates bond junction. Rudimental other part of carboxylic acid group and additional additive component with third amino group and monomer of C=C double bond forms ionic bond junction.

本发明的负型光阻剂组合物的一主要成份为聚亚酰胺其具有悬垂的-COOH且部分的羧酸基与带有环氧基团的丙烯酸酯单体glycidyl(methacrylate反应形成键结,而残留的另一部分羧酸基与另外添加的成份带有第三胺基及C=C双键的单体形成离子键结。

Among these results, we suggested that the monomer structure play a important role between E-O performances and morphology. Monomer STD02 shows fastest response time, and monomer M3 exhibits slowest one. As a result for roughness, it's the same with response time. From SEM photograph, the beadlike morphology was obtained from monomers without spacers. On the other hand, the filberlike morphology was obtained from monomers with spacers. It's suggested that the more harder structure will lead to the former, and the more softer structure will lead to the latter.

发现 STD02 反应时间最快,而 M3 则是最慢,而粗糙度大小也是与反应时间相符合,最大的是 STD02 而最小的是 M3,在 SEM 下结果显示,各单体所呈现的型态皆为颗粒状且排列均匀,因无含烷链段关系导致形成的型态为颗粒状,论文里有提到另一种单体含烷链段其所形成的型态为纤维状,以结构上来看,越是刚硬之单体所形成的型态都较易为水滴或是米粒状,而结构上越是柔软,所形成的型态都较易为稻穗或是纤维状。

Grafting degree increased with increasing monomer concentration in acrylic acid and crotonic acid systems. In undecylenic acid and oleic acid systems, grafting degree increased with monomer concentration initially but decreased after monomer concentration reaching at 0.30 mol/L.

丙烯酸、反式丁烯酸体系的接枝率随单体浓度的增加而增大。10-十一烯酸、油酸体系的接枝率初始时随单体浓度的增加而增大,单体浓度超过0.30mol/L后,接枝率降低。

In this Ph. D. dissertation, reverse microemulsion method was fully used infabricating and modifying polyacrylamide with functional and high-relative moleculeweight. The copolymerization of 2-acrylamide-2-methylpxopanesulfonic acid, fluorescent monomer 4-methoxy-N-(2-N\', N\'-dimethylamino ethyl)naphthalimide alkyl chloride quaternary ammonium salt, fluorescentmonomer 4-(N\'-methyl-1-piperazinylallyl)-N-butyl-naphthalimide chloride quaternaryammonium salt, Cationic monomer dimethylethylammonium bromide and hydrophobical monomer octadecylacrylate with acrylamide and properties of the copolymers werestudied. The interaction between five polymers and Al_2O_3(012) crystal surface have beensimulated by Materials Studio 3.0 program package, binding energies and non-bondinteraction energies and deformation energies have also been acquired.

本文以制备具有较高相对分子质量和功能型PAM为研究目的,将反相微乳液法运用到其制备及改性的有关环节,通过反相微乳液聚合工艺,将几种改性功能单体2-丙烯酰胺基-2-甲基-丙磺酸、荧光单体2-(4-甲氧基-1,8-萘二甲酰亚胺基)-乙基二甲基烯丙基氯化铵、荧光单体4-(N'-甲基-1-哌嗪基)-N-丁基-1,8-萘烯丙氯季铵盐、阳离子单体丙烯酰氧乙基-二甲基-乙基溴化铵和疏水单体丙烯酸十八酯与AM共聚,制备AMPS改性PAM、荧光示踪型PAM、阳离子单体DMB改性PAM和OA改性PAM等四类不同功能单体改性PAM,并研究其应用性能。

The method comprises following steps: taking diphenol and 3- trifluoromethyl- 4- chloronitrobenzene as raw material, salt precipitating for diphenol and potash, refluxing with water- containing toluene, reacting with 3- trifluoromethyl- 4- chloronitrobenzene and getting dinitro monomer; taking dinitro monomer, ferro powder and HCl as raw material, ethanol and water as disslovant for refluxing and ethanol recrystallization, getting fluorine- containing aromatic diamido monomer.

合成方法是以二酚与3-三氟甲基-4-氯硝基苯作原料,先将二酚与碳酸钾成盐,甲苯带水回流反应,然后与3-三氟甲基-4-氯硝基苯反应制得二硝基单体;再以二硝基单体,铁粉,HCl为原料,乙醇和水做溶剂,回流反应、乙醇重结晶,得到含氟芳香二胺基单体。

The results show that the radiative properties of randomly distributed soot aggregates for a given fractal dimension are complex functions of the monomer diameters, the number of monomers in the aggregates,and the refractive index; For a small value of the monomer diameters, the absorption cross section of soot aggregates tends to be relatively constant when the fractal dimension is small but increases rapidly when the fractal dimension exceeds two. However, a monotonical reduction in light absorption with the increase of the fractal dimension is observed for soot aggregates with sufficiently large monomer diameters, number of monomers,and refractive index. The scattering cross section , extinction cross section and single-scattering albedo increase monotonically with the increase of the fractal dimension. Overall, the results for soot aggregates differ profoundly from those calculated for the equivalent spherical particles, and the discrepancies between them will change small with the increase of the fractal dimension.

研究表明,在给定分形维数的情况下,烟尘団簇粒子的辐射特性取决于原始微粒粒径、数量及复折射率;原始微粒较小的団簇粒子,当分形维数较小时,吸收截面变化不明显,但当分形维数大于二时,吸收截面骤然增大,然而,对于具有比较大的原始微粒粒径、数量及复折射率的烟尘団簇粒子,吸收截面随着分形维数的增大而单调递减;随着分形维数的增大,団簇粒子的散射截面、消光截面及单次散射反照率均单调递增;从整体上来讲,団簇粒子的辐射特性与等效球形粒子的辐射特性存在着比较大的差别,并且这种差别随着分形维数的增大而减小。

In this paper, the third monomer 1,4- benzenediamine was introduced into the system of pyromellitic dianhydride and 4, 4-diamino diphenyl. Polyamic acid was synthesized in N-methyl pyrrolidone by solution polycondensation. The chemical structure of the polymer obtained was characterized by infrared spectrum. The dynamic viscosity and intrinsic viscosity were measured. Studies were mainly focused on the influences of monomer solid contents, monomer adding methods on intrinsic viscosity.

本实验在常用的均苯四酸二酐和4,4'—二氨基二苯醚聚酰亚胺体系中,引入第三单体对苯二胺,采用三元共聚的办法合成出聚酰胺酸溶液,对合成产物进行了分子结构的红外光谱分析以及特性粘数、动力学粘度的测试,并讨论了单体固含量、加入方式等对聚酰胺酸特性粘数的影响。

The capacity of combination between monomer silicic acid and monomer aluminum was weak, while it was stronger between the polymer silicic acid and monomer aluminum and the products were mainly bidentate or tridentate coordination compounds.

单体硅酸与单核铝的结合能力较弱;聚硅酸与单核铝的结合能力则较强,反应产物主要为二啮或三啮配合物。

The β-CA of B.napus was located in chloroplast stroma and had the conservative motif Cys-X(subscript n-His-X2-Cys peculiar to β type carbonic anhydrases. In the secondary structure,α-helix, random coil,β-sheet, and β-turn were 39.88%, 39.27%, 16.31%, and 4.53%, respectively. The three-dimensional structure was constructed by homology modeling. The 3-D alignment of β-CA from B.napus and a monomer of β-CA octamer from pea showed that the 3-D structure of β-CA from B.napus could match well with the monomer. The alignment results Implied that β-CA from B.napus was a monomer of the β-CA octamer from B.napus.

预测结果显示,甘蓝型油菜β破酸酐酶是定位于叶绿体基质的蛋白质,具有β类碳酸酐酶所特有的保守性基序Cys-χ-His-χ2-Cys;SOPMA预测二级结构显示α螺旋(39.88%)、随机卷曲(39.27%)、β折叠(16.31%)和β转角(4.53%);用同源建模法构建了三维结构图;通过VAST矢量比对工具将甘蓝型油菜β碳酸酐酶与模板进行三维结构比对,显示甘蓝型油菜β碳酸酐酶与碗豆β碳酸酐酶同型八聚体中的一个单体很好的匹配,推测甘蓝型油菜β碳酸酐酶全酶也是同型八聚体。

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