• 循环使用10芳香选择性为100%。

    After 10 times reuse, the selectivity of the ester was still 100%.

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  • 该文综述了微波辅助合成芳香酯研究进展,展望了微波技术在芳香酯合成中的发展前景。

    This article reviewed the current situation of the MAS of aromatic esters and prospected its future development.

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  • 氟化催化下,芳香乙酸乙发生克脑文格尔缩合反应,得到高产缩合产物

    The knoevenagel condensation of aromatic aldehydes with ethyl cyanoacetate proceeds smoothly in the presence of potassium fluoride giving products in high yield.

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  • 第二聚酰亚胺聚合物芳香四酸二氢化物芳香二异氰酸反应生成的。

    The second polyimide polymer is prepared with aromatic tetracid dihydride and aromatic diisocyanate.

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  • 利用IPN技术将芳香氰酸引入互穿聚合物网络涂层取代部分脂肪族异氰酸

    An aromatic isocyanate is introduced into an IPN coating system to partly substitute the aliphatic isocyanate.

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  • 研究生产所产生母液中含有的芳香羧酸加以回收,用于生产混合增塑剂

    This study focused on the recovery of aromatic polycarboxylic acids from the mother liquor of manufacturing trimellitic anhydride and it's application for making mixed plastifier.

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  • 结果表明:烈香杜鹃精油化学成分以高级脂肪酸芳香化合物芳香化合物为主。

    The results showed that the volatile constituents of Rhododendron athopogoides Maxim, mainly includes aliphatic acid and ester, aldehyde, ketone, aromatic and its heterocyclic compounds.

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  • 氟化催化下,芳香乙酸乙发生克脑文格尔缩合反应,得到高产率的缩合产物。且得到E异构体

    The knoevenagel condensation of aromatic aldehydes with ethyl cyanoacetate proceeds smoothly in the presence of potassium fluoride giving products in high yield. Only the E isomers could be isolated.

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  • 探讨了聚醚芳香聚氨丙烯酸合成工艺及其性能影响因素

    The synthesis of polyether aromatic polyurethane acrylate and its influencing factors were discussed.

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  • 室温下,二铁甲酰基异硫氰酸芳香反应生成新颖二茂铁取代对称

    At room temperature, several novel unsymmetric ferrocenyl thiourea compounds were synthesized by reaction of substituted aniline with ferrocenyl formyl isothiocyanate.

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  • 香成分乙酸龙脑水杨醛、丙二酸二、亚麻酸乙30个化合物,占芳香总量76 95 %。

    The 30 main compounds are bornyl acetate , salicylic aldehyde, diethyl malonate, ethyl linolenate, etc, which amount to 76.95 % content of the oil.

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  • 由于在混物引入芳香族氨键,增加树脂漆膜附着力、硬度固化速度表面

    The introduction of polyurethane groups to the blend improved the adhesivity, hardness, curing speed and surface energy of alkyd resin.

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  • 综述脂肪芳香单体制备生物可降解脂肪族-芳香共聚的研究进展

    Progress on biodegradable aliphatic-aromatic copolyesters based on aliphatic and aromatic diacids, diols and ester monomers was reviewed.

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  • 各种芳香二酸各种二乙烯基化合物有机溶剂存在下加热反应得到新型缩醛聚合物

    Various aromatic diacids and various divinyl ether compounds are heated to react in organic solvent to obtain novel ester acetal polymers.

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  • 芳香具有佳的调变作用,红外光谱研究催化剂组份之间相互作用

    The aromatic ester appeared to have the best modification effect and the interaction between components in this catalyst system and the aromatic ester…

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  • 本论文使用不同类型芳香醛与氨基酸加成反应合成了一系列氨基酸胺类化合物。

    A series of imine esters were synthesised by the addition of amino acid esters to aldehydes.

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  • 芳香氰酸制成的聚氨脂肪族异氰酸耐老化性能得多

    The results show that amine content increases with ageing time and polyurethanes based on aromatic isocyanate has much better ageing resistance than ones based on aliphatic isocyanate.

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  • 制备生物柴油成分较为复杂,各种脂肪酸含量达到98.59%,芳香

    The elements contained in the production of the biodiesel are complex, the total contents of methyl ester come to 98.59%, and aromatic hydrocarbon is not contained.

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  • 第二种聚 酰亚胺聚合物芳香四酸二酐芳香二异氰酸有机溶剂中,在催化剂作用一步法缩合反应制备得到;

    The second polyimide polymer is prepared with aromatic tetracid dihydride and aromatic diisocyanate and through a one-step condensation reaction in organic solvent and under the action of catalyst.

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  • 结果表明纯种固态发酵代谢生成芳香化合物等多种物质。

    The results showed that MTDF-01 could produce acids, alcohols, aldehydes, ketones, esters and aromatic compounds by pure solid fermentation.

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  • 发明涉及各种芳香二酸缩醛聚合物及其合成方法

    The invention relates to various aromatic diacid ester acetal polymers and a synthesis method of the aromatic diacid ester acetal polymers.

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  • 对乙酰氧基苯甲酸、对苯二酚二乙2,6-甲酸间苯二甲酸四种单体通过熔融缩聚反应,合成了芳香四组分共

    The wholly aromatic four-component copolyesters were prepared from p-acetoxy-benzoic acid, hydroquinone diacetate, 2,6-naphthalene dicarboxylic acid and isophthalic acid by melting polycondensation.

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  • 对乙酰氧基苯甲酸、对苯二酚二乙2,6-甲酸间苯二甲酸四种单体通过熔融缩聚反应,合成了芳香四组分共

    The wholly aromatic four-component copolyesters were prepared from p-acetoxy-benzoic acid, hydroquinone diacetate, 2,6-naphthalene dicarboxylic acid and isophthalic acid by melting polycondensation.

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