1.
Polycondensation catalyst may has bad effect on polyester afterprocessing properties.
缩聚催化剂会对聚酯后加工性能产生不良影响。
2.
The amount of catalyst can be reduced by selecting nice solvability catalyst, cutting down the remnant carboxyl amount of esterification and elevating polycondensation temperature.
选择溶解性能好的催化剂，降低酯化残存羧基量，提高缩聚温度，可减少催化剂用量。
3.
a catalyst linearizes polyethylene.
催化剂使聚乙烯线性化。
4.
Polylactic acid (PLA) of different molecular weights were synthesized by the direct condensation of lactic acid with modified gneiss as the catalyst, or with modified gneiss and stannous caprylate as the catalyst in the same reaction conditions and different reaction times.
以天然矿石－改性片麻岩为聚合反应的催化剂，通过直接缩聚方法制备了不同分子量的聚乳酸。
5.
Ethylene polymerization in the presence of MgCl_2-BuOH/TiCl_4 catalyst
MgCl_2-BuOH/TiCl_4催化剂催化乙烯聚合
6.
Study on Properties of Polyester Catalyzed by Different Aluminium Compounds
铝系催化剂催化合成聚酯的性能研究
7.
Kinetic study on ethylene polymerization with MgCl_2-BuOH/TiCl_4 as catalyst
MgCl_2-BuOH/TiCl_4催化剂催化乙烯聚合动力学
8.
aluminium chlorhydroxide
碱式氯化铝（树脂整理催化剂、凝聚剂）
9.
Catalytic synthesis of benzaldehyde glycol acetal with SO_4~(2-)/TiO_2-WO_3;
SO_4~(2-)/TiO_2-WO_3催化剂催化合成苯甲醛乙二醇缩醛
10.
Preparation of alkane diluent used in catalyst of ethylene polymerization
聚乙烯催化剂用链烷烃稀释剂的制备
11.
Terpolymerization of Glycidyl Octanoate,Carbon Dioxide with Propylene Oxide by Ternary Rare-earth-metal Coordination Catalyst
稀土三元催化剂下正辛酸缩水甘油酯-二氧化碳-环氧丙烷的三元共聚合
12.
Application of Solid Superacid (SO_4)~(2-)/M_xO_y Catalyst in Acetalation Reaction
(SO_4)~(2-)/M_xO_y型催化剂在缩醛反应中的应用
13.
Supported Metallocene Catalysts and Their Performance in Catalytic Propylene Polymerization;
负载化茂金属催化剂及催化丙烯聚合的研究
14.
The promotion action of ionic liquid as an accelerant in synthesizing benzaldehyde ethanediol acetal and benzaldehyde propanediol acetal was studied.
以离子液体为促进剂，强酸性聚苯乙烯732催化了苯甲醛与两种二元醉的缩醛反应。
15.
Study on spherical polyethylene catalyst prepared from clay modified by magnesium chloride/alcohol adductⅡ. Polymerization property of the catalyst
改性粘土用于制备乙烯聚合催化剂的研究 Ⅱ.催化剂的聚合性能
16.
The Olefin Polymerization Catalyzed by Ansa-Metallocene Catalysts
桥联茂金属催化剂催化烯烃聚合的研究
17.
Research on Synthesing Polybutadiene with Doped Ni-Catalyst System;
改性镍系催化剂催化丁二烯聚合的研究
18.
Ethylene Polymerization Catalyzed by Late Transition Metal Catalyst Supported by Montmorillonite;
蒙脱土负载后过渡金属催化剂催化乙烯聚合