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When HALS and antioxidant were used together, all synergism effect, antagonism effect and additivity effect were found, which depended on the types of HALS and antioxidant.

当受阻胺类光稳定剂和抗氧剂并用时,既有协同效应,又有对抗效应,也有加和效应。这依赖于受阻胺类光稳定剂和抗氧剂的种类。

Decades of research have uncovered the limitations of the monoamine hypothesis of depression.

数十年的研究已显示出经典的单胺类递质假说的局限性,单胺类递质以外的病理生理学机制成为抑郁症研究的热点和焦点。

The wax crystal dispersing agent is abietic acid diethylene glycol dinitrateThe acid radical amines. they duplicate match with the host medicinal preparation need to have the adjustment slightly according to the diesel oil composition.

蜡晶分散剂为松香酸酯酰胺类和3,6-氧桥-1,2,3,6-四氢苯-1,2-二甲酸高级酯/酰胺类,它们与主剂的复配需要根据柴油组成略有调整。

The invention relates to a method for preparing arylamine compounds by the catalytic hydrogenation of arene nitro compounds in a H2O-CO2 system, wherein H2O-CO2 is taken as reaction medium, and the arylamine compounds are prepared by the selective hydrogenation of the arene nitro compounds at a low temperature(between 25 and 100 DEG C), and the catalytic process is controllable, highly efficient and green.

本发明涉及H 2 O-CO 2 体系中芳烃硝基化合物催化加氢制备芳胺类化合物的方法。以H 2 O-CO 2 为反应介质,由芳烃硝基化合物低温(25-100℃)选择性加氢制备芳胺类化合物的可控、高效、绿色催化过程。

Seven Schiff bases of N-(4-hydroxyphenylmethylene)-1-naphthylamine, N-(4-hydroxyphenylmethylene)-p-methoxyaniline, N-(4-hydroxyphenylmethylene)-benzylamine, N-(4-hydroxy-3-methoxyphenylmethylene) furfurylamine, N-(4-hydroxy-3-methoxyphenyl methylene)-p-methylaniline, N-(4-hydroxy-3-methoxyphenylmethylene)-p-methoxyaniline and N-salicylidene-4-aminoantipyrine were first synthesized by the one step solid phase reactions between aromatic aldehydes with phenolic hydroxyl and amines at room temperature without solvent.

分别以带酚羟基的芳醛与胺类反应,首次通过室温固相反应一步合成了N-(4-羟基苯基亚甲基)-1-萘胺、N-(4-羟基苯基亚甲基)-对甲氧基苯胺、N-(4-羟基苯基亚甲基)-苄胺、N-(4-羟基-3-甲氧基苯基亚甲基)糠胺、N-(4-羟基-3-甲氧基苯基亚甲基)-对甲苯胺、N-(4-羟基-3-甲氧基苯基亚甲基)-对甲氧基苯胺和N-亚水杨基-4-氨基安替比林7种Schiff碱,反应15min完成,产率均超过90%。

Dialkylamine, which is an e-donor, was introduced at the C(4') or C(7) positions in 3HF resulting in similar ESICT/ESIPT dual emission. Even the net dipole moment, the orientation of which is affected by the CT effect, is expected different. Dialkylamine attached at both C(4') and C(7) positions in 3HF, of which the net dipole moment may be associated with the interplay between two charge-transfer systems, displayed different photo behaviors.

在3-hydroxyflavone的4'及7号位置分别修饰担任电子与体的二烷基胺类,在光谱上会观察到两种不同萤光波长,分别属於ESICT和ESIPT,但若同时修饰二烷基胺类,在不同极性溶剂下,会只有一个 ESIPT 的萤光。

An anionic phenol-formaldehyde resin which synthesized by phenol, formaldehyde and some amine compound such as diethylamine, triethylamine and diethylene triamine was studied in this paper, and this modified phenol-formaldehyde resin was used in papermaking as an intensifier.

本文通过苯酚、甲醛与胺类化合物(二乙胺、三乙胺、二乙烯三胺)反应,得到阴离子性的酚醛树脂,并研究了将改性的酚醛树脂作为造纸增强剂应用在抄纸过程中。

Further, the method for producing acrylamide of the present invention is characterized by hydrating acrylonitrile having a concentration of acrolein of 1 ppm or less by a microbial cell containing a nitrile hydratase or a processed product of the microbial cell in an aqueous medium.; Furthermore, the method for producing an acrylamide-based polymer of the present invention is characterized by homopolymerizing the acrylamide or by copolymerizing the acrylamide and at least one unsaturated monomer copolymerizable with the acrylamide.

本发明的制备丙烯酰胺的方法的特征在于,用含有腈水合酶的微生物的菌体或该菌体处理物使丙烯醛浓度为1ppm以下的丙烯腈在水性介质中进行水合反应。本发明的制备丙烯酰胺类聚合物的方法的特征在于均聚所述丙烯酰胺,或共聚所述丙烯酰胺和能与丙烯酰胺共聚的至少一种不饱和单体。

Based on the comparison of the infrared spectra of polyamide homologues, on the changes in the infrared spectra of deuterated and iodine-treated samples of polycaprolactam, and also on the observations of the infrared dichroism of drawn film , the main absorption bands of polycaprolactam in the region 400 cm(-1)-1400cm-1, which are rather structure sensitive, have been assigned as follows: 1370 cm-1 band-VC-N;, 1265 cm-1 and 1205 cm-1 bands-; 1170 cm-1 band-VC-N; 730 cm-1 band-γCH2 of (CH2)n w...

根据对聚酰胺类高聚物红外光谱的类比和对聚酰胺6试样进行氘化和碘处理后红外光谱的改变,以及根据对拉伸过的聚酰胺6薄膜试样的偏振红外光谱的观察,我们对聚酰胺6红外光谱中400cm~(-1)—1400cm~(-1)之间的主要吸收带,作了如下解释:1370cm~(-1)吸收带为ν_;1265cm~(-1)和1205cm~(-1)吸收带为δ_+ν_;1170cm~(-1)吸收带为ν_;730cm~(-1)吸收带为γ_(CH_2)[当(CH_2)_n的n≥4时];690cm~(-1)吸收带为δ_;580cm~(-1)吸收带亦为δ_。

Based on the comparison of the infrared spectra of polyamide homologues, on the changes in the infrared spectra of deuterated and iodine-treated samples of polycaprolactam, and also on the observations of the infrared dichroism of drawn film, the main absorption bands of polycaprolactam in the region 400 cm(-1)-1400cm-1, which are rather structure sensitive, have been assigned as follows: 1370 cm-1 band-VC-N;, 1265 cm-1 and 1205 cm-1 bands-; 1170 cm-1 band-VC-N; 730 cm-1 band-γCH2 of (CH2)n when n≥...

根据对聚酰胺类高聚物红外光谱的类比和对聚酰胺6试样进行氘化和碘处理后红外光谱的改变,以及根据对拉伸过的聚酰胺6薄膜试样的偏振红外光谱的观察,我们对聚酰胺6红外光谱中400cm~(-1)—1400cm~(-1)之间的主要吸收带,作了如下解释:1370cm~(-1)吸收带为ν_;1265cm~(-1)和1205cm~(-1)吸收带为δ_+ν_;1170cm~(-1)吸收带为ν_;730cm~(-1)吸收带为γ_(CH_2)[当(CH_2)_n的n≥4时];690cm~(-1)吸收带为δ_;580cm~(-1)吸收带亦为δ_。

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