查询词典 methacrylate

The encapsulated TiO〓 particles by polymer were obtained with soapless emulsion polymerization of methyl methacrylate in water in the presence of the pretreated TiO〓 particles.

一种是用偶联剂钛酸丁酯对亲水性TiO〓粒子进行预处理，钛酸丁酯与TiO〓表面羟基反应，交联到TiO〓粒子表面，使TiO〓粒子表面由亲水性转变为憎水性，改善无机粉体与有机单体的亲合性，再进行TiO〓存在下甲基丙烯酸甲酯的无皂乳液聚合，即可得到TiO〓-PMMA复合粒子：另一种方法是用表面活性剂对TiO〓进行预处理，再进行TiO〓粒子存在下甲基丙烯酸甲酯的无皂乳液聚合，TiO〓粒子表面可形成一层均匀的聚合物膜，提出了包覆机理，指出单体在无机粉体表面发生聚合的关键是预先在粒子表面形成聚合场所，即吸附一层表面活性剂。

A novel polymer of Poly(diglycidyl maleate-co-stearyl methacrylate) was synthesized and its structure was characterized by ~1H NMR. Its self-assembly behavior was studied in different solvents. It was found that vesicles and tubule-liked aggregates can be obtained through self-assembly of P(DGMA-co-SMA)/THF/EtOH system. And spheral aggregates were obtained in P(DGMA-co-SMA)/THF/H_2O system while the spheral aggregates were converted into rod-liked aggregates and line-liked aggregates after aged for different time.

合成了带含环氧基侧链和十八烷基侧链的聚(马来酸二缩水甘油酯-co-甲基丙烯酸十八酯)，用~1H NMR对所得的共聚物进行了表征；研究了其在选择性溶剂中的自组装行为，发现P(DGMA-co-SMA)／THF／EtOH体系可以通过自组装形成囊泡形自组装体和支化的管状自组装体，P(DGMA-co-SMA)／THF／H_2O体系最初自组装形成球形自组装体，随着陈化时间的延长，球形自组装体逐渐融合成长条形自组装体和线形自组装体；探讨了自组装过程的机理，建立了可能的自组装过程模型。

Solution polymerization and amide reaction were used to synthesize the multifunctional comb-type amphiphilic polymer, stearyl methacrylate/ methylacrylic acid-ethanolamine-ethanediamine-folic acid polymer.

利用溶液聚合和成酰胺反应合成了多功能梳状两亲性共聚物，聚甲基丙烯酸-甲基丙烯酸十八酯-乙醇胺-乙二胺叶酸。

A micro-monolithic column was prepared by in-situ free radical polymerization of stearyl methacrylate with ethylene glycol dimethacrylate in the presence of the initiator AIBN and a mixture of porogens including iso-amyl alcohol and 1,4-butanediol.

以甲基丙烯酸碳酰十八酯为单体，乙叉二甲基丙烯酸酯为交联剂，异戊醇和1，4-丁二醇为二元致孔剂，偶氮二异丁腈为引发剂，原位制备了具有强疏水性的SMA整体微柱，并利用此整体微柱在普通高效液相色谱仪上测定滴眼液中氧氟沙星的含量。

The amphiphilic copolymer poly (MAA-SMA-PEGMA) was synthesized by the conventional free-radical copolymerization of methacrylic acid, stearyl acryate and poly methacrylate monomers.

利用功能性单体甲基丙烯酸、甲基丙烯酸十八烷基酯和聚乙二醇甲基丙烯酸酯通过常规自由基无规共聚反应，合成了两亲性共聚物Poly(MAA-SMA-PEGMA)。

The tetrabasic graft copolymer was prepared on chloroprene rubber initiated by benzoyl peroxide,with styrene,methyl methacrylate and acrylic acidas graft monomers by tetrabasic graft copolymerization.

以苯乙烯、甲基丙烯酸甲酯、丙烯酸为接枝单体，以过氧化二苯甲酰为引发剂，在氯丁橡胶上进行接枝共聚，制备出CR/St/MMA/AA四元接枝共聚物。

The combination effect of hindered amine light stabilizers PDS copolymer of 2,2,6,6 tetramethyl 4 piperidinyl methacrylate(TMPM with styrene with several kinds of antioxidant in polypropylene under γ irradiation was studied in this article.

研究了受阻胺光稳定剂 PDS4-(甲基丙烯酸- 2 ，2 ，6 ，6 -四甲基哌啶醇酯和苯乙烯的共聚物与几种类型抗氧剂在γ-辐射下在聚丙烯中的并用效应。

The effects of MMA and alumina trihydrate on properties of oligourethane methacrylate resins were investigated. And the curing reactivities of unsaturated polyester resin, vinyl ester and UM resin were compared by various methods.

研究了甲基丙烯酸甲酯和三水合氧化铝含量对聚氨酯甲基丙烯酸酯树脂性能的影响，比较了不饱和聚酯树脂、乙烯基树脂和UM树脂的固化反应活性。

A series of UV curable waterborne hyperbranched polyester s with different acid/amine terminal rate,which contained -OH?-COOH and methacrylic chain end groups,and were partly neutralized with thertiary amine,were synthesized from trimellitic anhydride,epichlorohydrin,glycidyl methacrylate and triethylamine.

以偏苯三酸酐、环氧氯丙烷、甲基丙烯酸缩水甘油酯、三乙胺合成了末端羧基与氨基不同比例的一系列可UV固化的高支化聚酯，研究了末端官能团对合成产物水溶性、粘度以及凝胶转化率的影响。

Poly silica hybrids were prepared through polymerization, condensation and sol gel processes of the mixture of methyl methacrylate, poly and a small amount of coupling agent methacryloxylpropyl trimethoxy siliane in tetrahydrofuran.

采用溶胶-凝胶技术，以硅酸钠为原料制备聚硅酸/四氢呋喃溶胶，再与甲基丙烯酸甲酯及少许偶联剂甲基丙烯酰氧丙基三甲氧基硅烷(MPTMS 混合，经聚合、缩合和溶胶-凝胶过程制备了有机/无机两相间有— C—Si—O—键的杂化材料——聚甲基丙烯酸甲酯/二氧化硅(PMMA/Si O2 )。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。