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甲基丙酸烯

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The copolymers of 2-acrylamide-2-methyl propanesulfonic acid and itaconic acid were synthesized by free radical aqueous solution copolymerization, and its structure was characterized by IR.

用自由基水溶液聚合法,合成了2-丙烯酰胺基-2-甲基丙磺酸和衣康酸的二元共聚物缓凝剂,并用红外光谱表征了其结构。

Methacryloyloxydecyl-2-thiouracil-5-carboxylate was synthesized from the reaction of thiouracil with diethyl ethoxymethylene malonate and ω-hydroxy-decyl-methacrylate.

以硫脲、乙氧基次甲基丙二酸二乙酯和甲基丙烯酸ω-羟癸酯为主要原料合成了一种新的粘接性单体10-甲基丙烯酰氧癸基-2-硫脲嘧啶-5-羧酸酯。

The results showed that there were 8 kinds of aliphatic, 5 kinds of esters, 2 kinds of aldehydes, 2 kinds of nitrogen sulfur heterocyclic rings and one kind of hydrocarbon, alcoholics, ketone, lactones respectively in the analyzed 21 kinds of aroma components, and the content of furfural,β-methyl valeric acid, palmitic acid, nicotine, neohytadiene were higher, next were acetyl ethyl propionate, caleric acid, phenyl ethyl acetate, hydroxylic diethyl succinate.

结果表明,在分析出的21种香气成分中,分别有脂肪酸类8种,酯类5种,醛类2种,氮硫杂环类2种,烃类、醇类、酮类、内酯类各l种,其中相对含量较高的物质成分是糠醛、β-甲基戊酸、十六碳酸、烟碱、新植二烯,其次是乙酰丙酸乙酯、异戊酸、苯乙酸乙酯、羟基丁二酸二乙酯等。

The copolymers with high molecular weight synthesized from 2-acrylamio-2-methyl propane sulfonic acid and acrylic acid or acrylamide or other water soluble monomers can be used to purification of wastewater and as the dehydrant of organic slurry.

2-丙烯酰胺基-2-甲基丙磺酸和丙烯酸或丙烯酰胺等水溶性单体的高分子量共聚物,可用于废水的净化,还可作为有机污泥的脱水剂。

Trifluoromethyl-3-heptadfluoroisopropyl-2-perfluoropentene-4-(N',N'-dimethylamino propyl) imino was prepared by the reaction of hexafluoropropene timer with N,N-dimethyl propanediamine in the molar ratio 1:1.0 at room temperature for 8h, and the structures of VIII were identified by IR and NMR spectra.

以六氟丙烯三聚体与N,N-二甲基丙二胺为原料合成叔胺2-三氟甲基-3-七氟异丙基-2-全氟戊烯-4-(N',N'-二甲胺丙基)亚胺,利用红外光谱和核磁共振确定其结构,并通过对合成条件的考察得其最佳合成条件:乙醚为溶剂,碳酸钠为缚酸剂,摩尔投料比为1:1.0,在室温下反应8小时。

A series of 3 - aryl - 3 -( 5,5 - dimethyl - 3 - hydroxy - 2 - cyclohexene - 1 - one - 2 - yl) propanoic ester s were synthesized by reaction between aromatic aldehydes ,5,5- dimethyl -1,3-cyclohexanedione and isopropylidene malonate catalyzed by KF - Al2O3 in alcohols.

在KF-Al_2O_3催化下,将芳香醛3,5-二甲基-1,3-环己二酮及丙二酸亚异丙酯在醇中反应,一锅式合成了一系列的3-芳基-3-(5,5-二甲基-3-羟基-2-环己烯-1-酮-2-基)丙酸酯。

Using tetrabutyl titanate and methyl methacrylateor 2-Hydroxyethylmethacrylate (HEMA as materials, methacryloxylpropyl trimethoxy siliane as coupling agent, HCl as catalyst, Poly-titania(PMMA-TiO2) nanocomposites and Poly-titania(PMMA-TiO2) nanocomposites were synthesized by sol-gel process.

以盐酸作为催化剂,将钛酸四丁酯水解制备二氧化钛(TiO2)溶胶;随后将所制备溶胶与甲基丙烯酸甲酯、硅烷偶联剂(γ-甲基丙烯酰氧丙基三甲氧基硅烷)相混合,以过氧化苯甲酰作为引发剂,经过聚合、缩合和溶胶-凝胶过程,制备了均匀透明的PMMA-TiO2纳米复合材料和PHEMA-TiO2纳米复合材料。

Three fullerene derivatives including a bisadduct of tetraethyl methano[60] fullerenediphosphona- te、a dimalonic acid[60]fullerene (DMA C60and fullerol were used to study the relationship between their photo-induced GSH depletion and structures.

采用二加成亚甲基富勒烯[60]二膦酸四乙酯、二加成富勒烯[60]丙二酸(DMA C60)和富勒醇 3种富勒烯衍生物研究富勒烯衍生物的结构与光诱导细胞内GSH耗竭的关系。

Comb-shaped polycarboxylic -type superplasticizers were synthesized with acrylic acid,mathacrylic acid,sodium allylsulphonateand methoxypolymethacrylatethrough aqueous copolymerization initiated by ammonium persulfate.

将甲氧基聚氧乙烯醚单甲基丙烯酸酯、丙烯酸、甲基丙烯酸和烯丙基磺酸钠进行水溶液共聚,合成了具有梳型结构的聚羧酸系高效减水剂。

Comb-shaped copolymer of polycarboxylate containing carboxyl,sulfonic groups(-SO3M),polyethylene glycol(-OC2H4-) was synthesized by monomers of sodium 2-acrylamido-2-methylpropane sulphonate,acrylic acid,polyethylene glycol monoester acrylate under certain conditions.

本文通过2-丙烯酰胺-2甲基丙基磺酸钠与丙烯酸、聚乙二醇单丙烯酸酯在一定条件下发生聚合反应合成含有羧基、磺酸基(—SO3M)、聚氧乙烯链(—OC2H4—)等侧链的高性能减水剂PC。

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