论文最后对该催化剂在完成环加成反应过程中的催化机理进行了初步探讨。
At last, the catalytic mechanism of cycloaddition of propylene oxide with carbon dioxide is discussed.
结果:通过改变CHC的组分,添加成孔剂,可以成功的制备原位固化形成多孔结构的CHC。
RESULTS: PCHC could be successfully established by in situ solidification through change of CHC component and addition of porous agent.
与水、活性氢、醇、酚、胺、酰胺、羧酸、烯烃、醛、酮、酯加成得到的新化合物,可作脱水剂和氧化剂使用。
Many new compounds can be obtained by addition with water, hydrogen, alcohols, phenols, amines, amides, carboxylic acids, olefins, aldehydes, ketones, esters, etc.
以含环氧基聚二甲基硅氧烷为基胶,以胺类化合物为固化交联剂进行了新型加成型硫化硅橡胶的研究。
By using polydimethylsiloxane containing epoxy groups as base gum, the compounds containing amino groups as crosslinking reagent, a new addition type curable silicone rubber were prepared.
介绍了对聚丙烯进行结晶细化改性的方法,如加成核剂、与高分子材料共混以及控制温度等。
The methods of decreasing spherulite size of polypropylene, such as adding nucleating agents, blending with other polymers and temperature control were introduced.
通过采用铂催化剂催化低含氢硅油与烯丙基聚醚的硅氢加成反应合成了有机硅聚醚表面活性剂。
Silicone polyether surfactant was synthesized by the addition reaction of low hydrogen content silicone and allyl polyether with Pt catalyst and under no solvent condition.
第二步,在金属钾催化条件下,使第一步产物缩水甘油醚发生开环加成反应生成双子表面活性剂的中间体低聚二醇。
The second step, the digomeric glycol-intermediate product of Gemini. surfactant was prepared by opening ring reaction of glycide ether in the presence of potassium as catalyst.
本文评论了用于硅氢加成反应的过渡金属催化剂。
The transition metal catalysts for hydrosilation are reviewed in this paper.
研讨了添加成核透明剂等对线型低密度聚乙烯( LLDPE)结构与性能的影响。
The influence of nucleating transparent agent on the structure and the properties of LLDPE was researched.
以均聚聚丙烯(PP)为基体树脂,通过添加成核剂制备了注塑级透明pp专用料。
The transparent polypropylene (PP) special material for injection is prepared by adding nucleating agent to homopolymerized PP matrix.
讨论了引入钯催化剂对微波氚标记,及微波氚标记过程中脱卤和加成作用的影响。
The influence of a palladium catalyst on the microwave tritium labelling reaction and dehalogenation or addition of the starting materials are discussed.
本文综述了应用手性高分子试剂和催化剂对潜手性化合物通过不对称氧化、还原、烷基化、加成反应进行不对称合成的进展情况。
This review deals with the recent progress in asymmetric synthesis using chiral polymeric reagents and catalysts for oxidation, reduction, alkylation and addition of prochiral compounds.
我们纯净的,高品质的香薰精油不包含人工的添加成分,经过纯度的测试,保证不含杀虫剂。
Our pure, aromatherapy quality essential oils do not contain synthetic additives; they are tested for purity and guaranteed pesticide free.
研究了固载液相铂催化剂的制备及其在3-氯丙烯与甲基二氯硅烷硅氢加成反应中的催化性能;
The preparation of supported liquid-phase platinum catalyst, and its catalytic property for hydro-(silylation) reaction of 3-chloropropene were studied.
水性环氧固化剂一般采用多元胺-环氧加成物。
Polyamine - epoxy adduct is used as waterborne epoxy hardener generally.
通过研究在单核加成的基础上提出了催化剂、底物和氧化剂间生成双核加合物的反应机理。
Formation of a dinuclear complex involving the oxidant, catalyst and the substrate has been proposed in the reaction mechanism.
通过对反应产物NCO含量和黏度的测定,考察了TMP中水分含量、催化剂、HDI与TMP摩尔比、反应温度、反应时间对加成产物的影响。
The effect of water content in TMP, catalysts, molar ratio of HDI to TMP, temperature and time on the properties of products was studied by measuring the NCO content and viscosity of products.
综述了手性配体金属络合物催化剂催化1,3 -偶极环加成反应的研究进展。
The research advances of the chiral ligands metal complexes catalysts used in asymmetric 1, 3-dipolar cycloaddition reactions were reviewed in this paper.
本文介绍了近年来加成型无溶剂硅酮隔离剂的研究状况、涂布工艺及应用。
The present situation of the research work, coating technology and application of additive solventless silicone release agent in recent years are described in this paper.
合成的窄分布低摩尔数环氧乙烷加成物具有优良的润湿性,可作为新型渗透剂的主体基料。
It shows that the low-mole narrow-range ethoxylatsproducts have excellent wetting property and this product can be used as a new material of penetrating agent.
粘结单体4一META作为陶瓷偶联剂的添加成分,对瓷和树脂的粘结无帮助。
As an additioner in silane coupling agent, the functional monomer of 4-META can not help the bonding between porcelain and composite resin.
研究了5A分子筛固载铂催化剂的制备,并对它催化乙炔与三乙氧基硅烷硅氢加成反应的催化效果进行了探索。
The preparation of 5A zeolite supported platinum catalyst, and its catalytic capabilities for hydrosilylation reaction of acetylene with triethoxysilane were studied.
考察了温度、催化剂用量、加料速率等因素对苯乙烯与甲基二氯硅烷硅氢加成反应的影响。
The effects of temperature, the quantity of catalyst used, and reactant feed rate on hydrosilylation was discussed.
以乙二胺和丙烯酸异辛酯为原料,甲醇为溶剂,在无催化剂条件下,经迈克尔加成反应合成了低代的树枝状化合物。
A lower generation dendritic compound was synthesized from ethylenediamine and iso-octyl acrylate by Michael addition in methanol without catalyst.
以甲基含氢硅油和丙烯酸十二酯为原料,氯铂酸为催化剂,通过硅氢加成的方法直接合成了长链烷基酯改性硅油。
Modified silicone with long chain acylate is synthesized by hydrosilation of PHMS and lauryl acrylate using chloroplatinic acid as the catalyst.
研究添加成孔剂法制备的有球形宏观孔的多孔氮化硅陶瓷在不同孔隙率和孔径下的介电性能。
The porosity, pore diameter and solubility of ceramsite filter made by these two methods were analyzed and compared.
介绍了加成型有机硅浸渍漆的基本组成、催化剂、阻聚剂及其固化机理,并综述了国内外加成型液体有机硅浸渍漆的应用情况。
The paper introduces the basic components of an additive liquid silicone impregnating varnish, the catalyst, the inhibitor and its curing mechanism.
用磷酸做催化剂,催化工业双戊烯与顺丁烯二酸酐进行异构加成反应。
In the presence of catalyst phosphoric acid, isomeric addition of bipentene with cis-butenedioic anhydride can form terpenyl bu tenedioic anhydride compound as expoxylite firming agent.
该产品通过调整脂肪醇聚氧乙烯醚的环氧乙烷加成数来控制所合 成的表面活性剂的HLB值。
The product controls the HLB value of synthesized surfactant by adjusting the epoxy ethane adduct number of the fatty alcohol polyoxyethylene ether.
关于手性配体催化二烷基锌一羰基的不对称加成生成光活性醇的反应,从催化剂、不对称催化机理与自催化过程、手性放大等方面进行了概述,参考文献50篇。
The title reaction is reviewed with 50 references, the catalysts, the mechanism of asymmetric catalysis, the self-catalyzed process and the chiral amplification phenomenon are discussed.
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