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- The research progress in the synthesis of high relative molecular weight or high stereotacticity polyvinyl alcohol (PVA) was reviewed from the aspects of polymerization and initiation processes. 从聚合方法和引发方式综述了国内外合成高相对分子质量及高立构规整度聚乙烯醇(PVA)的研究进展;
- Synthetic Technology of High Relative Molecular Weight Polystyrene Resin 高相对分子质量聚苯乙烯树脂合成技术
- Keywords polyvinyl alcohol;high strength and high modulus;polyvinyl pivalate;high relative molecular weight;high ster-eotacticity; 聚乙烯醇;高强高模;聚新戊酸乙烯酯;高相对分子质量;高立构规整度;
- high relative molecular weight 高相对分子质量
- The production technologies of PVA with ultrahigh relative molecular weight mass and high stereo-tacticity were introduced. 介绍了超高相对分子质量和高立构规整度的PVA制备方法;
- The relative molecular weight of AOL was 31500,determined by gel filtration. 用SephadexG－200柱测得AOL的相对分子质量为31500；
- Ultra high relative molecular mass cross-linked alkene polymer was synthesized by bulk polymerization using metal complex as catalyst and 1,5-hexadiene as cross-linking agent. 以金属配合物为催化剂、1,5-己二烯为交联剂,采用本体聚合法合成了交联超高相对分子质量烯烃类聚合物(简称交联聚合物)。
- The relative molecular weight of OVT was determined as 76 500 by ESI Mass Spectrometry. ? 电喷雾质谱分析显示;OVT的相对分子质量为76500.
- The crystallization property of PPS is dependant on relative molecular weight markedly. PPS相对分子质量对结晶性能的影响很敏感。
- The melting behavior of ultrahigh relative molecular weight polyethylene (UHMWPE) fiber was studied by DSC. 用DSC法研究了超高相对分子质量聚乙烯(UHMWPE)纤维的熔融行为。
- Polymer Natural or synthetic plastic-like substances having molecule in a high relative molecular mass formed by the chemical linking of many simple molecules, of the same substance. 类似塑胶的人造或天然物体。由许多简单而属于同一种物质的分子,通过化学结合而形成,并具有较高的相对分了质量。
- With same volume, alternative injection of polymer with high relative molecular quality and alkali/surfactant has better effect than ASP flooding, and can solve the problem of usage of produced water. 在用量相同的条件下，高相对分子质量聚合物与碱／表面活性剂交替注入驱油效果好于三元复合驱，并可解决污水利用问题。
- Effects of as 2-mercaptoethanol chain transfer agent to polymerization and the relative molecular weight of copolymer were studied. 研究了2-巯基乙醇作为链转移剂对聚合过程和共聚物相对分子质量的影响。
- Adding third component into zirconium-base catalyst was beneficial to effectively adjusting the relative molecular weight dist... 在锆系催化剂中加入第三组分对乙烯齐聚物的相对分子质量分布有明显的调变作用。
- For hydrocarbons with similar relative molecular weight, the KL values of paraffin, naphthene and aromatics decrease in order. 对于相对分子质量近似的烃，烷烃KL值>环烷烃KL值>芳烃KL值；
- So the polynome method feasible to calculate the relative molecular weight of the polymer drilling fluid additives is further verified. 多项式法计算聚合物钻井液处理剂相对分子量的可行性得到进一步验证。
- The results show that the relative molecular weight of the polymer along the outfield direction presents a gradient distribution. 相对分子质量的测试表明，样品沿着外场方向呈现相对分子质量梯度分布；
- The metallocene polyethylene with a relative molecular weight distribution higher than 4 could be obtained by using the combined catalyst having 1 : 1 molar ratio of APE-1/APE-2. 高压聚合试验中负载型APE-1和APE-2催化剂按照摩尔比1:1复配,可以得到相对分子质量分布大于4的茂金属聚乙烯。
- high relative molecular poly(sodium acrylate) 高分子量丙烯酸钠聚合物
- A plasma globulin of high molecular weight. 大球蛋白细胞分子中较重的血球蛋白
