1) dimerization catalyst
二聚催化剂
1.
Several homogeneous bifunctional catalytic systems for the synthesis of the linear low density polyethylene (LLDPE) from a single monomer source were developed, which consisted of a dimerization catalyst Ti(OBu)4/AlEt3 and a copolymerization catalyst, either Cp2zrCl2/MAO or Et(Ind)2ZrCl2/MAO.
研究了由二聚催化剂Ｔｉ（ＯＢｕ）４／ＡｌＥｔ４和共聚催化剂（Ｃｐ２ＺｒＣｌ２／ＭＡＯ或Ｅｔ（Ｉｎｄ）２ＺｒＣｌ２／ＭＡＯ）组成的双功能均相催化体系。
2) oligomerization catalyst
齐聚催化剂
1.
According to the type of oligomerization catalysts,dimerization,trimerization,and tetramerization catalyst systems and oligomerization catalysts system for wide range oligomer were introduced respectively.
按照齐聚催化剂的类型,分别介绍了二聚催化体系、宽分布乙烯齐聚催化体系、三聚催化体系及四聚催化体系,并对共聚催化剂作了简要说明。
3) copolymerization catalyst
共聚催化剂
1.
The copolymerization catalysts were presented briefly.
按照齐聚催化剂的类型,分别介绍了二聚催化体系、宽分布乙烯齐聚催化体系、三聚催化体系及四聚催化体系,并对共聚催化剂作了简要说明。
4) polycondensation catalyst
缩聚催化剂
1.
Application of antimony ethylene glycol as a polycondensation catalyst;
缩聚催化剂乙二醇锑的应用
2.
The principle of polycondensation catalyst and the of choice catalyst was summarized ,separately compared the catalytic efficiency of antimony ethylene glycol and Sb2O3 and sb(Ac)3 in DMT and PTA .
综述了聚酯缩聚催化剂的催化原理及催化剂的选择原则,并分别比较了乙二醇锑与Sb2O3和Sb(Ac)3催化剂在DMT法和PTA法中的催化效果。
3.
Furthermore, titanium glycolate is used as polycondensation catalyst of poly-ethyleneterephthalate (PET), and shows more active than antimony-based catalysts (Sb_.
乙二醇钛作为聚对苯二甲酸乙二酯(PET)的缩聚催化剂,表现出了较锑系催化剂(Sb2O3)更高的催化活性。
补充资料：稀土催化剂顺式聚丁二烯橡胶
为了提高轮胎的安全性，延长使用寿命，以及降低油耗等，必须改善其对于湿路面抓着能力(牵引性)，降低滚动阻力，提高耐磨性。为此，开发能满足这些性能要求的合成橡胶十分必要。用稀土催化剂，如新癸酸钕(c)、环烷酸钕(n)等聚合得到的顺式1，4聚丁二烯橡胶(ndbr)具有良好的抗湿滑性和较低的滚动阻力，而耐磨性仍能保持良好的水平。与镍催化聚丁二烯橡胶(nibr)相比，ndbr不仅具有较高的顺式l，4结构含量(97％)，而且它们的应力一应变、弹性、生热、湿滑以及滚动阻力等性能都有特点。本文对用两种稀土催化剂得到的ndbr 的性能进行了研究，并与nibr(br9000)作了对比。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条