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- Polymer of polar monomer and copolymer of polar monomer with nonpolar monomer are prepared via metallocene catalysts. 采用茂金属催化体系可以制备极性烯类单体的均聚物及极性烯类单体与非极性烯类单体的共聚物。
- The copolymerization of polar monomer MAH grafting on APP in the presence of oxygen has been studied in solution. 采用溶液法选用极性单体马来酸酐，在非隔氧条件下，对无规聚丙烯进行接枝改性。
- Two-step procedure is preferable to prepare high molecular weight poly(olefin-ester)s with a high polar monomer content and a high melting temperature. 两段聚合过程适于制备高分子量的烯烃共聚酯，聚合物收率达90%25，极性单体的插入率大于10%25，熔融温度高达120℃。
- The development of dinuclear metallocene is reviewed.The effects of catalyst structure on polymerization of olefin and polar monomer are summarized. 综述了双核茂金属化合物的研究进展及其在烯烃和极性单体聚合方面的应用及双核茂金属化合物的合成及性能研究;
- However when the solvent is isopropyl alcohol or non polar solvent the decomposition value of monocrotophos is about 5% in the same condition. 但用异丙醇或非极性溶剂作溶剂时,在相同的条件下,久效磷的分解率为5%25左右。
- After careful selection of polar monomer and intermediate, a kind of waterproofing fatliquor was prepared, which has excellent waterproofing and fatliquoring properties. 通过对多种极性单体、中间体及合成条件的优选、制备了具有防水效果的加脂剂，其加脂性能和防水性能都很理想。
- Fluorobenzonitrile(4 FBN) was prepared by fluorination of 4 chlorobenzonitrile(4 CBN) with potassium fluoride using 1,3 dimethyl 2 imidazolidone (DMI) as a non polar solvent. 以4氯苯甲腈(4CBN)和无水氟化钾为原料,1,3二甲基2咪唑啉酮(DMI)为反应介质,经氟化反应合成了4氟苯甲腈(4FBN)。
- The influence on separating non polar systems of C4 fractions by extractive distillation with addition of salt in terms of relative volatility at infinite dilution was studied. 以C4为例利用无限稀释相对挥发度的试验测定结果,研究加盐萃取精馏分离非极性体系的影响规律。试验研究表明,溶剂加盐能够提高C4组份之间的相对挥发度,且比一般有机溶剂效果明显;
- The formulation,technology and properties of new PVC compound forshoe-making,modified with ethylenevinyl acetate-third polar monomer terpo-lymer(ELVALPY 741),powered nitrile rubber(CHEMIGUM P83)and carbo-xylated nitrile rubber(XNBR),was introduced. 本文介绍了采用乙烯-醋酸乙烯-第三极性单体的三元共聚物(ELVALOY741)、粉末丁腈橡胶(如 CHEMICUM P83)和羧基丁腈橡胶(XNBR)改性的聚氯乙烯(PVC)所制造的新型鞋用材料的配方、工艺和性能。
- The graft copolymerization of natural rubber(NR) and polar monomer maleic anhydride (MAH)in the presence of oxygen has been studied in toluene solution. Benzoyl peroxide(BPO) was used as initiator. 采用溶液法,选用极性单体马来酸酐(MAH),在非隔氧条件下,以过氧化苯甲酰(BPO)为引发剂对天然橡胶(NR)进行接枝改性。
- The vapor liquid equilibria and critical properties for 10 non polar chain like fluids and 6 associating fluids are investigated by combining the renormalization group (RG) theory and the Yukawa EOS extended for chain like fluids. 结合重整化群 (RenormalizationGroup ;RG)理论和适用于链状流体的Yukawa状态方程 ;研究了 10个非极性链状流体和 6个缔合流体的汽液相平衡和临界性质 .
- This orientation will lead to a higher oxygen concentration in the catalyst layer (O2 has a much higher solubility in non polar backbone) and should produce a much improved ORR performance. 这一方针将导致更高的氧气浓度在催化剂层（ O2已经相当高的溶解度在非极性骨干） ，并应产生一个很大的改进奥尔性能。
- If unclear or unknown of polarity of circuit indication. Non polar capacitor is recommended to be used. 在电路回路中如不清楚或不明确线路的极性时，则建议使用无极性电解容器。
- The solubility of polymers in alcohol mainly effected by the monomer ratio and solution temperature and benefited to increase of the amount of polarized monomer (AA and VAc). 增加极性单体AA和VAc的用量，可以改善聚合物在乙醇中的溶解性；通过结构表征发现，聚合物中AA上的羧基基团易在聚合物里形成氢键而影响聚合物的溶解性。
- non polar velocity-diagram method 无极速度图法
- Tensile strength of CPE material was increased by adding polar monomers of MA,AN and St. 极性单体MA、AN及St的加入提高了CPE材料的拉伸强度。
- The two systems of government are polar opposites. 这两种政体正好相反。
- In one word, R(Ph2Cu)Li lithium organocuprates such initiating system inspires a whole new efficient way of polymerization of MMA and the other polar monomers. 总的说来，n-BuLi/Ph2PCu有机铜锂引发体系为MMA等极性单体的聚合和嵌段聚合物的合成提供了一条新的途径。
- This non sequitur invalidates his argument. 他不根据前提推理因而论证无效。
- This paper reviewed the progress in the studies on copolymerization of olefin with O|cotained polar monomers in the presence of Ziegler|Natta catalyst, metallocene catalyst and late transition metal catalyst. 综述了在齐格勒 纳塔、茂金属和后过渡金属催化体系下 ,烯烃与含氧极性功能单体共聚的研究进展
