甲苯氧化甲基化合成苯乙烯是一种新工艺。
Oxidative methylation of toluol to styrene is a new process.
研究了羟乙基甲基纤维素和乙烯基共聚物两种聚合物干粉改性砂浆在不同养护条件下的粘结抗拉强度。
The adhesion strength of hydroxyethyl methyl cellulose modified mortar and ethylene copolymer modified mortar were studied at different curing condition.
以醋酸乙烯酯和丙烯酸丁酯为主要原料，引入自交联型单体羟甲基丙烯酸胺合成了纸张——铝箔复合膜粘合剂。
The self - cross linking adhesive for paper - Al foil composite can be abtained by using vinyl acetate and acrylate as raw materials and hydroxy methyl acrylamide as self - cross linking monomer.
研究了羟乙基甲基纤维素和乙烯基共聚物两种聚合物干粉改性砂浆加水搅拌后的性能。
The properties of cement mortar modified by hydroxyethyl methyl cellulose and vinyl co-polymer were studied.
它们是乙烯，丙烯，异丁烷，环丁烷，丁烯类化合物三个，甲基乙基醚，乙基异丙基醚，乙酸乙酯。
Ten of them were identified. They are ethylene, propylene, isobutane, cyclobutane, three isomeric butenes, methyl ethyl ether, ethyl isopropyl ether, and ethyl acetate.
系统地研究了乙烯受体抑制剂1-甲基环丙烯（1-MCP）处理后，桃果肉细胞超微结构的变化。
The changes of cell ultrastructure in harvested peach fruits treated with 1-methylcyclopropene (1-MCP) as ethylene receptor inhibitor were studied.
结果表明，掺加羟乙基甲基纤维素会明显降低水泥砂浆抗折强度，而掺加乙烯基共聚物则能显著提高水泥砂浆抗折强度；
The result shows that the flexural strength of cement mortar reduces greatly by adding hydroxyethyl methyl cellulose, while adding vinyl co-polymer the strength can increase considerably.
将六苯基环三硅氮烷与甲基乙烯基硅橡胶按照不同配比共混得到混炼胶，测定老化前后混炼胶的力学性能。
The mechanical properties of gross rubber before and after aging were detected when mixed hexaphenyl cyclotrisilazane with methyl vinyl silicone rubber in different ratio.
聚乙烯随着短支链甲基含量的增加，结晶度降低。
The crystallinity of polyethylene decreased with increase of content of short branched chain methyl.
随着温度的升高聚乙烯产物支化度和甲基支链含量都迅速增加，长支链含量则显著下降。
Branching degree of the polyethylenes and the content of methyl branch rise quickly with reaction temperature, but the content of long branches drops remarkably.
介绍了聚苯乙烯树脂间接氯甲基化的方法。对影响氯甲基化反应的一些条件、因素作了讨论。
The methods about indirect Chloromethylation of Polystyrene are discussed, and the conditions and factors affecting the reactions of chloro - methylation also discussed here.
在乙醚溶液制得的聚苯乙烯次甲基锂与甲基丙烯酸甲酯反应不能分离出聚甲基丙烯酸甲酯及它的接枝共聚物。
Neither polymethylmethacrylate nor polymethylmethacrylate-grafted copolymer could be isolated by the reaction of polystyrene methylene lithium prepared in ether solution with methyl methacrylate.
这些化合物能均聚反应，亦易与苯乙烯、甲基丙烯酸甲酯及丙烯腈等乙烯类单体共聚合，得有色的高聚物。
These colored compounds can be homopolymerized and copolymerized with most vinyl monomers such as styrene, methyl methacrylate and acrylonitrile, to give the corresponding colored polymers.
研究了苯乙烯中苯乙炔、聚合物和甲基苯乙烯三种杂质对悬浮法聚苯乙烯粒径的影响。
The effects of impurities such as phenylethyne, polymer and methyl styrene on particle diameter of polystyrene manufactured by suspension polymerization were analyzed .
以最常见的两种单体甲基丙烯酸甲酯和苯乙烯为例。
Take the most widely used monomers, styrene and methyl methacrylate as an example.
合成了1 ，2 -二哌啶乙烷，并将其应用于苯乙烯和甲基丙烯酸甲酯的原子转移自由基本体聚合。
The new ligand 1,2-dipiperidinoethane (DPE) was designed and synthesized, and applied to atom transfer radical polymerization of styrene and methyl methacrylate monomers.
热固型丙烯酸涂料是由丙烯酸和甲乙基丙烯酸酯，丙烯酸和甲基丙烯酸，或苯乙烯反应而成。
Thermoset acrylic coating are based on resins prepared from acrylic and methacrylic esters, acrylic and methacrylic acids, and / or styrene.
研究了油酸和三乙烯四胺的生成物油酰多胺对环氧树脂和甲基四氢苯酐固化物性能的影响。
The influence of oleoyl polyamine prepared by oleic acid and triethylene-tetramine on the properties of cured product of epoxy resin and methyhetrahydrophthalic anhydride(MTHPA)was studied.
以二乙烯基苯为交联剂，由甲基丙烯酸甲酯、苯乙烯、甲基丙烯酸模型浇铸共聚，制得了一种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.
实验研究工作以四针状氧化锌晶须为填料，以聚乙烯醇和聚甲基丙烯酸甲酯为基体，以水和甲苯为溶剂，制备出了性能良好的导电膜。
In the study on manufacture of the composites, tetrapod-like ZnO whiskers, PAV and PMMA, water and toluene, are employed as conductive fillers, matrix materials and solvents respectively.
本工作定量测定了2-乙烯基吡啶-甲基丙烯酸甲酯-铑络合物的烯烃催化加氢性能与共聚物配体序列结构的关系。
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.
三元树脂由乙烯基磺酸酯、甲基丙烯酸甲酯（MMA）与甲基丙烯酸（MAA）按不同的配比共聚而成。
The polymer was prepared by copolymerizing vinyl sulfonate, methyl methacrylate(MMA) and methacrylic acid(MAA) in different proportions.
通过直接水解的方法合成了聚甲基乙烯基硅氧烷。
Polymethylvinylsiloxane is synthesized from the hydrolytic polycondensation reaction of methylvinyldichlorosilane.
本文报导了苯乙烯—甲基丙烯酸铅新型光学塑料的合成及其性能的测试。
This paper reports the synthesis of a new optical plastic in the styrene-lead dimethacrylate copolymer and measurements of its properties.
本论文采用乳液聚合的方法合成了聚醋酸乙烯树脂，并通过加入硬单体—甲基丙烯酸甲酯对其进行改性。
The method of emulsion polymerization was used to synthesize polyvinyl acetate resin by adding hard monomer_methyl methacrylate to modify it.
研究了预处理短纤维用量对乙炔炭黑填充甲基乙烯基硅橡胶（VMQ）／EPDM共混硫化胶拉伸、撕裂、耐屈挠疲劳和导电性能的影响。
The influence of the level of the pretreated short fibre on tensile strength, tear strength, flex fatigue and conductivity of the acetylene black filled VMQ/EPDM blend vulcanizate was studied.
探讨了聚乙烯吡咯烷酮浓度，羧甲基淀粉钠用量对法莫替丁分散片崩解的影响及不同介质对其溶出的影响。
Famotidine dispersible tablets were prepared. The influence of PVP concentration, sodium starch glycolate quantity and different medium on disintegration and dissolution rate is discussed.
以硅胶为催化剂，丙酮和甲醛可经常压缩合反应合成甲基乙烯基酮。
Atmospheric vapor phase catalytic condensation of formaldehyde with acetone for manufacture of methyl vinyl ketone has been studied.
以硅胶为催化剂，丙酮和甲醛可经常压缩合反应合成甲基乙烯基酮。
Atmospheric vapor phase catalytic condensation of formaldehyde with acetone for manufacture of methyl vinyl ketone has been studied.
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