甲基丙烯酸甲酯

A homogeneous redox initiator system with ceric ammonium nitratein N,N-dimethyl-formamidewas reported in this paper.

研究了均相氧化还原体系硝酸铈铵/N，N-二甲基甲酰胺在无外加还原剂的条件下，引发丙烯酸甲酯，苯乙烯和甲基丙烯酸甲酯等烯类单体的聚合。

Results indicate that as the molecular mass of polyethylene glycol increases, the conductance is increased obviously, and the surface tension is decreased from 36.28 mN/m to 31.30 mN/m, while the cloud point is increased from 39.6 ℃ to 58.9 ℃. Their emulsifying abilities to BA, MMA and BMA are superior to that of OP-10, and the surfactants is homopolymerize or copolymerize with acrylate at 70 ℃ under the initiation of AIBN.

结果表明，随聚乙烯醇分子量的增加，非离子表面活性剂的电导率显著增加、表面张力由36.28 mN/m降低至31.30 mN/m、浊点由39.6 ℃增加至58.9 ℃，对丙烯酸丁酯、甲基丙烯酸甲酯和甲基丙烯酸丁酯的乳化能力均优于常用乳化剂OP-10，以AIBN作引发剂在70 ℃下既能均聚又可与丙烯酸酯进行共聚反应。

Aniline-BP was used as CTC system to initiate the polymerization ofMMA under UV irradiation, PMMA prepolymer with aromatic imino endgroup was prepared.

以苯胺-BP为CTC体系，在紫外光辐射下，引发甲基丙烯酸甲酯聚合，得到了含有芳亚胺端基的聚甲基丙烯酸甲酯预聚物。

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。

The PMMA macromer was obtained by radical polymerization in the presence of 2-mercaptoethanol as a chain transfer agent, followed by termination with acryloyl chloride.

甲基丙烯酸甲酯进行自由基溶液聚合，巯基乙醇为链转移剂，然后用丙烯酰氯封端制备了聚甲基丙烯酸甲酯大分子单体。

We found that PMMA was harder to grow water trees when it was put in the same condition as LDPE and the reason was discussed.

本文还在同等条件下对聚甲基丙烯酸甲酯进行了水树枝老化试验，发现与低密度聚乙烯相比，聚甲基丙烯酸甲酯更难于生长水树枝，我们对这一现象产生的原因进行了分析。

The copolymer derived from the copolymerization in high capacity kettle were testified that copolymerization between AN and MMA occurred. The microcapsules in the films are distributed in the copolymer film matrix. The heat-absorbing temperatures and heat-evolving temperatures of the films are almost the same as that of the MOCT, respectively. In addition, the enthalpy efficiency of MOCT, the melting enthalpy and the crystallizing enthalpy rises with the contents of MOCT increasing.The decomposition temperature of copolymers in the films containing various contents of MOCT decreases with the contents of MOCT increasing.

采用30升聚合釜合成了丙烯腈—甲基丙烯酸甲酯共聚物，证实了丙烯腈和甲基丙烯酸甲酯发生了共聚反应；正十八烷微胶囊分散和镶嵌到了共聚物膜基体中；正十八烷微胶囊含量不同的共聚物膜的吸热温度放热温度与纯正十八烷微胶囊的吸放热温度基本相同；随着正十八烷微胶囊含量的增加，共聚物膜的热焓和热效率逐渐增加；共聚物膜中的共聚物的热稳定性温度随着正十八烷微胶囊含量的增加逐渐减小，共聚物膜的结晶度则有所增大。

The study investigats the mass transport and hydrolysis behavior for poly in various concentrations of methanol/ tin chloride (SnCl2·2H2O) cosolvent between 40℃ to 60℃. Furthermore, by using the successfully manufactured poly/ tin dioxide nano composites, the mechanical, optical and thermal properties are investigated.

中文摘要本研究系探讨在不同质传温度(40℃~60℃)下，聚甲基丙烯酸甲酯於不同浓度之氯化锡/甲醇潜溶剂(0g/100g、3g/100g、5g/100g、7g/100g及9g/100g)中的质传及水解行为，并利用成功制得之聚甲基丙烯酸甲酯/二氧化锡奈米复合材料，进一步探讨奈米复合材料之光学性质、机械性质及热性质。

In this work, methyl methacrylate, epoxy resin and unsaturated polyester resin were modified by industrial bismaleimides and liquid crystalline bismaleimides to increase the thermal stability and mechanical property of the three materials. So the ranges of the three materials useness will be enlarged.

本文采用双马来酰亚胺改性甲基丙烯酸甲酯、环氧树脂和不饱和聚酯树脂，以期提高这三种材料的耐热性能和机械性能，从而拓宽聚甲基丙烯酸甲酯、环氧树脂和不饱和聚酯树脂的应用范围，所以这一课题的研究具有重要的理论和实际意义。

The suspension polymerisation reactions of methyl methacrylate and styrene in inorganic/ organic composite ternary system are studied.

采用无机/有机三元复合分散体系进行了甲基丙烯酸甲酯与苯乙烯悬浮聚合的研究，对影响共聚物珠粒形成的因素进行了考察，得到了合成甲基丙烯酸甲酯—苯乙烯共聚物的工艺条件。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。