Propylene copolymer, polypropylene composition, use thereof, transition metal compounds, and catalysts for olefin polymerization.
丙烯共聚物，聚丙烯组合物及其用途，过渡金属化合物和烯烃聚合催化剂。
Transition metal complexes, catalyst compositions containing the same, and olefin polymerization using the catalyst compositions.
过渡金属配合物，含有该配合物的催化剂组合物，及采用该催化剂组合物的烯烃聚合。
Progress on synthesis of post transition metal nickel complex and its application as catalyst in olefin polymerization was reviewed.
对后过渡金属镍络合物及其催化烯烃聚合的研究进展进行综述。
The results show that tensile strength, glass transition temperatures, molecular weights and number averaged polymerization degree of the polycarbonate decreased with the dose.
结果表明，聚碳酸酯材料的力学性能、玻璃化温度、分子量和数均聚合度均随吸收剂量的增加而下降；
The recent progress in transition-metal catalyst used in atom transfer radical polymerization has been reviewed in this article.
对用于原子转移自由基聚合的过渡金属催化剂近年来的研究新进展作出了评述和展望。
The present invention belongs to polymer-transition metal 'post-cyclopentadiene' catalyst for olefin polymerization and its preparation process.
本发明是属于高分子化后过渡金属“茂后”烯烃聚合催化剂及其制备方法。
The result indicates:handled by enzyme, the wood's glass transition temperature, holo-cellulose content and degree of polymerization increased, crystallinity increased;
结果表明：微生物酶使木粉的玻璃化温度降低，纤维素的结晶度提高，综纤维素含量以及纤维素聚合度降低；
The result indicates:handled by enzyme, the wood's glass transition temperature, holo-cellulose content and degree of polymerization increased, crystallinity increased;
结果表明：微生物酶使木粉的玻璃化温度降低，纤维素的结晶度提高，综纤维素含量以及纤维素聚合度降低；
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