- 更多网络例句与氨基甲酸甲酯相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Dimethylhexane-1,6-dimethyleurethane is the key material for preparation of 1,6-hexamethylene diisocyanate by non-phosgene route. Our work mainly focuses on the study of the catalytic performances of metal oxysalts and metal oxides for the ammonolysis of DMC to HDU-M. Experiment effect showed the ammonolysis was omposed by two steps, in which the first step was easier to occur than the second.
中文摘要六亚甲基-1,6-二氨基甲酸甲酯是非光气合成六亚甲基二异氰酸酯的关键原料,本文主要对金属含氧酸盐和金属氧化物这两类用于碳酸二甲酯胺解合成HDU-M 的催化剂进行了初步研究并优化了工艺条件。
-
This method is sensitive, fast and accurate and it could satisfy high sensitive analysis of methyl carbamate residues in liquor.
该方法的灵敏度高、操作简便、快速,满足白酒中痕量氨基甲酸甲酯农残的高灵敏分析。
-
At the same time coupling reaction combined with urea and methanol is used in the synthesis of methyl carbamate.
重点研究了氨基甲酸甲酯的合成路线,本文将耦合反应应用于氨基甲酸甲酯的合成反应中,结合尿素醇解法制备氨基甲酸甲酯。
-
The clean synthesis of 1,6-dicarbamate hexane from dimethyl carbonate and 1,6-diamine hexane is studied.
对由1,6-己二胺和碳酸二甲酸合成1,6-六亚甲基二氨基甲酸甲酯的洁净化工艺过程进行了初步研究。
-
The photoproducts of CCU in organic solvents have also been identified with HPLC- and GC-MS. The photoproducts identified in methanol are isocyanato bezene, 4-chlorophenyl isocyanate, 2-chloro benzamide, chlorobenzene, 4-chlorophenyl urea, N-phenyl methylcarbamate, N-(4chlorophenyl) methylcarbamate, and 2-chloro-N-(4-chlorophenyl) benzamide.
对灭幼脲在各种有机溶剂中的光解产物作HPLC/UV和GC-MS鉴定,发现其在甲醇中的光解产物含有:异氰酸苯酯、对氯苯基异氰酸酯、邻氯苯甲酰胺、氯苯、对氯苯基脲、N-苯基氨基甲酸甲酯、N-氨基甲酸甲酯、以及N-邻氯苯甲酰胺等。
-
Keywords: methyl carbamate, isocyanic acid ester, polyurethane, green chemical technology, dimethyl carbonate
中文关键词:氨基甲酸甲酯;异氰酸酯;聚氨酯;绿色化工;碳酸二甲酯
-
This project mainly exploratorily studied that polyurethane was produced via condensation reaction between polyhydroxylated compounds and methyl carbamate, which was firstly synthesized by dimethyl carbonate and amines. The process is a green route because it turns away the synthesis and the utilization of toxical isocyanic acid ester.
本项目主要探索性地研究了碳酸二甲酯和胺类化合物反应生成氨基甲酸甲酯,然后氨基甲酸甲酯再和多羟基化合物直接反应得到聚氨酯材料,从而避免了异氰酸酯的合成和使用。
-
The intermediate which obtained from oximation of 7a-e reacted withmethyl N-(2-bromomethylphenyl)-N-methoxycarbamate to synthesize oxime ether methyl carbamate 3a-e.
以邻位卤代苯甲醛和3-丁烯-2-醇为原料通过钯催化&一锅法&反应合成了2-乙酰基茚7a-e,7a-e 肟化之后和N-(2-溴甲基苯基)-N-甲氧基氨基甲酸甲酯反应合成了肟醚类氨基甲酸甲酯3a-e,进一步胺解之后得到了肟醚类氨基甲酰甲胺3f-j。
-
The source and formation mechanism of methyl carbamate in liquor covered the followings:①methyl carbamate formed by spontaneous chemical reaction of carbamide and methanol in fermented and undistilled alcoholic beverage;②in alcohol produced by grains as raw materials, cyanide precursor of grains formed into cyanate during fermentation and distillation, which further developed into methyl carbamate in alcohol.
白酒中氨基甲酸甲酯的来源和形成机理主要有:①在已发酵的和未蒸馏的酒精饮料中尿素和甲醇自发的化学反应生成氨基甲酸甲酯;②以谷物为原料生产的酒精中,氨基甲酸甲酯形成的途径来源于谷物的氰化物前体在发酵和蒸馏时反应形成的氰酸盐,氰酸盐在酒精中转化为氨基甲酸甲酯。
-
Latest researches in the catalysts for synthesis of carbamate by ammonolysis of dimethyl carbonate;2. Progress in the catalysts for synthesis of carbamates by ammonolysis of dimethyl carbonate;3.4,4′-Methylene diphenyl carbamatewas synthesized by ammonolysis of dimethyl carbonate, a substitute of phosgene, and 4,4′-diaminodiphenyl methane with anhydrous zinc acetate as catalyst.
用碳酸二甲酯代替光气,以4,4′-二氨基二苯基甲烷为原料,在无水醋酸锌催化剂的作用下,经胺解反应合成了4,4′-二苯甲烷二氨基甲酸甲酯;测定了MDC的熔点;采用傅里叶变换红外光谱和氢核磁共振对产品结构进行了表征;考察了反应温度、DMC用量、反应压力、反应时间、催化剂用量对MDC收率的影响。
- 更多网络解释与氨基甲酸甲酯相关的网络解释 [注:此内容来源于网络,仅供参考]
-
Geraniol:牻牛儿醇
[化学成份]柚的外果皮含挥发油,主成分为柠檬醛(citral),牻牛儿醇(geraniol),芳樟醇(linalool),邻氨基本甲酸甲酯(methylanthranilate). 另据报道,挥发油中主含柠檬烯(limonene),还含a-蒎烯(a-pinene)等.
-
PEI:聚醚酰亚胺
03) 聚醚酰亚胺(PEI)材料的分类体系D5315-04 用伴有支柱衍生作用的直接注水高压液相色谱法(HPLC)法测定水中N-甲基-氨基甲酰肟和N-氨基甲酸甲酯的试验方法D5341-99(2004) 测量焦炭活性指数(CRI)和反应后的焦碳强度(CSR)的试验方法D5376-93(2002) 橡胶的化学试验方法.测定橡胶防老化剂中氮的百分比含量:聚合的四氢呋喃(TMQ)D5
-
UF:脲甲醛树脂
丙烯腈-丁二烯-苯乙烯共聚物(ABS)、聚甲基丙烯酸甲酯(俗称有机玻璃)(PMMA)、丙烯腈-苯乙烯共聚物(A/S)、聚对苯二甲酸乙二醇酯(PETP)酚醛树脂(PF)、环氧树脂(EP)、氨基树脂、醇酸树脂、烯丙基树脂、脲甲醛树脂(UF)、三聚氰胺树脂、不