• 对甲苯磺酸酸水解羧酸甲酯基和烃羧酸高碳醇酯双官能硅油并和碱性水解的效果比较

    The modified silicone was hydrolysed by toluene-p-sulfonic acid, and the hydrolysis ratios in acid and base were compared.

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  • 本文介绍了重氮转移法合成具有较大空间位阻乙酸二环甲酯L- 薄荷酯丁酯

    Synthesis of sterically hindered dicyclohexylmethyl, L menthyl and tert butyl diazoacetate by diazo transfer was described on this paper.

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  • 目的探讨微波加热法处理聚甲丙烯酸甲酯(pmma)托材料力学性能

    Objective: To study the mechanical properties of microwave cured polymethylmethacrylate (PMMA) denture base resins.

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  • 制备MPOF原料选用丙烯酸甲酯(MMA),通过聚合方法聚合机理分析,确定采用加压本体自由聚合技术。

    MMA is selected as raw material of the preparation of MPOF. Compressed bulk free radical polymerization is adopted by means of analyzing polymerization method and polymerization mechanism.

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  • 本工作定量测定了2-乙烯吡啶-甲丙烯酸甲酯-铑络合物烯烃催化加氢性能共聚物配体序列结构关系

    The quantitative relationships between the catalytic ability of Rh-complex of 2-vinyl pyridine-methyl methacrylate copolymer and the sequence structures of the copolymer ligands have been determined.

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  • 目的研究碳纤维织布增强聚甲丙烯酸甲酯PMMA机械性能

    Objective:To study the mechanical properties of the PMMA denture -base enhanced by carbon fiber cloth.

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  • 乙酰丁二酸二甲酯一种重要有机化工中间体广泛用于医药农药染料、食品添加剂研究等领域

    Dimethyl Acetylsuccinate (DMAS) was an important organic chemical intermediate, and widely used in the fields of pharmaceuticals, pesticide, pigment, dyes and organic synthesis research etc.

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  • 丙烯酸甲酯临床上常用义齿材料

    Polymethyl methacrylate is the most frequently used denture base material in clinic.

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  • 介绍了以精制玉米油甲酯化、酰胶化酯化磺化四步合成脂肪酸胺琥珀单酯盐研究

    Introduces the research of synthesis alkanolamide sulfosuccinic acid monoester from refined corn oil by methyl-esterification, amidation, esterification and sulfonation.

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  • 通过紫外光引发丙烯酸甲酯聚合聚丙烯表面引入了反应性

    The surface of polypropylene microporous membranes was activated by the graft polymerization of methyl methacrylate initiated with ultraviolet-photo.

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  • 甲酸甲酯氢解制甲醇步骤难点在于环境友好的低温高活性铜催化剂的研制。

    Hydrogenolysis of methyl formate to methanol was the rate-determining process and was mainly catalyzed by nickel-based or copper-based catalyst system.

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  • 二乙烯剂,丙烯酸甲酯苯乙烯丙烯酸模型浇铸共聚,制得了交联型改性有机玻璃

    A kind of crosslinking modified organic glass was prepared by mold copolymerization of methyl methacrylate, styrene, methacrylic acid with divinylbenzene as crosslinking agent.

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  • 玻璃无机生物水泥生物活性和使用可靠性安全性等方面,胜过现有的聚甲丙烯酸甲酯(PMMA)水泥。

    Glassbased biocement(GBC) in an inorganic bone cement which prevails over polymethylmethacrylate(PMMA) cement in the properties of bioactivity, fixation reliability and performance safety.

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  • 三元树脂乙烯磺酸酯丙烯酸甲酯MMA丙烯酸(MAA不同配比共聚而成。

    The polymer was prepared by copolymerizing vinyl sulfonate, methyl methacrylate(MMA) and methacrylic acid(MAA) in different proportions.

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  • 根据缩合原理,研究并提出了“克兰逊”催化缩合法,通过特性触煤合成甲叉二乙酯产品提高了产品质量回收率

    Through the peculiarity contact-coat, composes the ethoxy methylene propane dioic acid dio-ethylest which improves the quality and yield of the product.

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  • 溴代环己烷苯甲酸乙酯原料经过反应合成了丙烯酸二环甲酯

    With bromocyclohexane and ethyl benzoate as raw materials, dicyclohexylphenylmethyl methacrylate was synthesized by two steps.

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  • 本文乙酰丁二酸二甲酯合成反应机理、合成路线及其优缺点进行评述,重点讨论了目前工业上所用的合成工艺及其改进的方向。

    The reactive mechanisms of DMAS and several synthetic routes were reviewed. The methods applied in commercial production of DMAS were discussed in detail.

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  • 十分有趣是该体系丙烯酸甲酯进行光敏自由引发聚合的速率和其光解反应速率有很大的不同本文对此现象进行了讨论。

    It is interesting to find that the rate of photo-polymerization of MMA initiated by this system was different from the rate of photolysis. This phenomenon was discussed briefly.

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  • 丙烯酸、 丙烯酸丙烯酸甲酯为单体,采用自由聚合法制了聚丙烯酸卷材涂料前驱成膜物,获得了适宜的制备工艺条件。

    Phragmoplast of coil coating has been prepared by free radical polymerization and by using acrylic acid, methyl methacrylate, butyl acrylate as the raw materials.

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  • 方法自由合法合成聚糖-甲丙烯酸甲酯共聚物聚合物在水中形成具有疏水核心水表面的纳米粒

    METHODS The chitosan-methylmethacrylate copolymers were synthesized by free radical polymerization, and the copolymer formed nanoparticles consisted of hydrophobic core and hydrophilic surface.

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  • 咖啡甲酯3,4 -二乙酰咖啡酸突破血屏障具有脑靶向性特点。

    Methyl ester of caffeic acid and 3, 4-diacetyl-caffeic acid can cross the BBB and can thus be used as brain targets.

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  • 溴戊烷、溴己烷1,2-二溴乙烷亚磷酸甲酯为原料,分别合成了戊、溴乙取代膦酸甲酯化合物。

    In this paper, three alkyl substituted dimethyl phosphonates have been synthesized by trimethyl phosphite with 1-Bromopentane, 1-Bromohexane and 1,2-Dibromoethane.

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  • 液态橡胶、异氟尔酮二异氰酸酯扩链剂3,6 -二甲-2 ,5 -二甲苯胺为原料,合成了不同硬段质量分数的聚硫硫代聚脲。

    A series of polysulfide based thio-polyurea was synthesized, which were based on isophorone diisocyanate, liquid polysulfide and 2,5-diamino-3,6-dimethylmercapto toluene.

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  • N-酰胺、醋酸乙烯酯为原料,N,N-二甲氨吡啶DMAP催化剂,合成N-甲-N-乙烯乙酰胺。

    N-Methyl-N-vinylacetamide was synthesized from N-methylacetamide and vinyl acetate with N, N-dimethylamino pyridine (DMAP) as catalyst.

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  • 十分有趣是该体系丙烯酸甲酯进行光敏自由引发聚合的速率和其光解反应速率有很大的不同本文对此现象进行了讨论。

    It is interesting to find that the rate of photo-polymerization of MMA initiated by this system was different from the rate of photolysis. This phenomenon was d...

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  • 十分有趣是该体系丙烯酸甲酯进行光敏自由引发聚合的速率和其光解反应速率有很大的不同本文对此现象进行了讨论。

    It is interesting to find that the rate of photo-polymerization of MMA initiated by this system was different from the rate of photolysis. This phenomenon was d...

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