查询词典 isophorone

The PUUs and PUAs synthesized with isophorone diamine showed lower degree of hydrogen bonding for the urea carbonyl groups existed in the system as well as better miscibility between soft and hard segments, compared to those prepared with ethylenediamine or hexanediamine as chain extenders.

用异佛尔酮二胺、乙二胺和己二胺三种扩链剂合成了不同结构的脂肪族聚氨酯脲和聚脲，并考察了扩链剂对聚氨酯脲和聚脲形态结构与性能的影响。

The microcapsules with polyurea shell for functionally thermal fluid application were synthesized by interfacial polymerization with isophorone diisocyanate and tetraethylenepentamine as wall material precursor in an emulsion system.

1前言功能热流体是在单相流体中混入其它材料形成的一种集储热与强化传热功能于一身的新型储传热介质[1]。

Acetone; Synthesis; Isophorone; Mg-Al composite oxide; Characterization ; Activity evaluation

丙酮； 合成；异佛尔酮；镁铝复合氧化物；表征；活性评价

Mg-Al oxide catalysts were prepared by co-precipitation method, used ammonia as the precipitating agent. The catalytic performances of these materials were investigated in the gas-phase Aldol condensation of acetone to isophorone. The structure and surface properties of the catalysts were characterized by means of XRD, XPS, ICP, TG-DTA and TPD.

采用共沉淀法，以氨水为沉淀剂制备了一系列具有不同Mg/Al摩尔比的镁铝氧化物催化剂，考察了它们在丙酮气相缩合反应中的催化性能，并通过XRD，XPS，ICP，TG-DTA和TPD等手段对催化剂的结构和性质进行了表征。

Waterborne aliphatic polyurethane dispersion was synthesized by the reaction of epoxy resin with isophorone diisocyanate, dimethoxypropionic acid and polyester-diol.

以异佛尔酮二异氰酸酯、聚酯二元醇和二羟甲基丙酸作为主要原料合成了脂肪族水性聚氨酯分散体，并用环氧树脂对其进行了改性。

This algorithm was applied to a typical epoxy polymeric network based on diglycidyl ether bisphenol A and isophorone diamine, obtaining a highly crosslinked infinite network model with the conversion up to 93.7%.

将其应用到异佛尔酮二胺固化双酚A二缩水甘油醚得到的聚合物，产生了一个高度交联无限扩展的聚合物网络模型，其反应转变率达到了93.7%。

In this thesis, we describe a facile and economical synthesis of-abscisic acid from keto-isophorone and 3-butyn-2-ol through ketalization, oxidization, Witting-Horner reaction, reduction with chromium sulfate and other steps in 13% total yields. Compared to the previous routes, the starting materials are more commercially available and cheaper and the synthetic process is more easily controlled in our method, but the yield of this route is still to be improved.As to isostere principle, cyclopropyl and methyl vinyl are a couple of isostere.

本论文设计并完成了一条全新的外消旋脱落酸(1)全合成路线，从廉价的工业原料氧化异佛尔酮和丁炔醇出发，经过缩酮化反应、氧化反应、Wittig-Horner反应、CrSO_4选择性还原反应以及水解等七步反应实现了脱落酸的全合成，总产率达13％，与以往路线相比，该路线所用试剂廉价、合成路线简单，但产率有待提高。

The Polyether Polyurethane elastomer were prepared from hydroxyle-terminated polybutadiene, isophorone diisocyanate, 1,4-butylcne glycol, stannous octoate and SiO_2 in direction.

以端羟基聚丁二烯、异佛尔酮二异氰酸酯、1，4-丁二醇、白碳黑、辛酸亚锡等为原料，采用一步法制备了聚烯烃型聚氨酯弹性体材料。

Results The mixing, loading and storing processes of the construction, might generate lots of occupational hazards, including toluene, dimethylbenzene, trimethylbenzene, isopropanol, butyl alcohol, propanol, methyl methacrylate, butyl acetate, methyl isobutyl ketone, methyl ethyl ketone, acetic ether, nitro-cotton, n-hexane, n-heptane, carbinol, ethanol, ethyl propionate, diisobutyl ketone, glycol ether, isoamyl acetate, 2,4-toluene diisocyanate, isophorone, noise, power frequency electric fields.

结果 该项目在混兑生产和装卸、仓储过程中，可能产生的职业病危害因素主要有甲苯、二甲苯、三甲苯、异丙醇、丁醇、丙醇、甲基丙烯酸甲酯、乙酸丁酯、甲基异丁基甲酮、丁酮、乙酸乙酯、硝化棉、正己烷、正庚烷、甲醇、乙醇、乙酸丙酯、二异丁基甲酮、乙二醇乙醚、乙酸异戊酯、2，4甲苯二异氰酸酯、异佛尔酮、噪声、工频电场。

Polyurethane-acrylics hybrid latexes were prepared using isophorone diisocyanate, dimethylol propanoic acid and polypropylene oxides of different molecular weights as main materials for PU component, and butyl acrylate, methyl methacrylate and a crosslinker, trihydroxymethyl propanetriacrylate as main acrylic monomers. Hydroxyethyl acrylate was used as the coupling agent between PU and AC.

以异佛尔酮二异氰酸酯、二羟甲基丙酸和聚丙醚二醇等为聚氨酯原料，丙烯酸丁酯、甲基丙烯酸甲酯、三羟甲基丙烷三丙烯酸酯为丙烯酸酯类单体，丙烯酸羟乙酯为聚氨酯和聚丙烯酸酯间的偶联剂合成了丙烯酸酯改性水性聚氨酯乳液。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。