tacticity相关论文
Organocatalytic stereoselective cationic polymerization of vinyl ethers by employing a confined Br?n
The properties of poly(vinyl ether)s(PVEs)are highly dependent on their tacticity,and the appealing thermoplastics featu......
Free radical polymerization is widely used in industry,due to its high functional group tolerance,and ease of operation.......
Isospecific Polymerization of Methyl Methacrylate by Intramolecular Rare-Earth Metal Based Lewis Pai
A series of cationic rare-earth aryloxide complexes,i.e.,[LREOAr']+[B(C6F5)4]-(L = CH3C(NAr)CHC(CH3)(NCH(R)CH2PPh2);RE =......
通过工业试用,对3种国产钛系聚丙烯主催化剂的聚合生产过程控制、活性、氢调效果、等规度和粉料粒度分布等性能指标进行了评价。结......
本文测定了0—130℃温度范围内,由~(60)Co-γ射线和两种活性不同的引发剂引发聚合的聚甲基丙烯酸三丁基锡酯的等规度。利用~(13)C-......
<正> 聚偏氟乙烯(PVF_2)是一种半结晶聚合物,它至少存在α、β、γ和δ四种晶相结构。其中β相由于其与PVF_2的压电性和热电性直接......
本文研究了聚甲基丙烯酸三乙基锡酯与聚合温度温度间的依赖性，发现随着聚合温度的提高，ＰＴＥＴＭ间同含量降低，而全同，无规含量则增加，同时还计算......
采用13C NMR分析技术,将超临界CO2下AN沉淀聚合的立体特性(以下简称CO2-PAN)与AN水相沉淀自由基聚合及AN水相悬浮自由基聚合进行了......
Fourier transform infrared spectroscopy （FTIR） has been used to study the effect of tacticityof PMMA on β phase formation......
SUPPORTED CATALYST WITHOUT EXTERNAL ELECTRON DONOR FOR PROPYLENE POLYMERIZATION Ⅱ. TACTICITY DISTRIB
Propylene was polymerized with a novel supported Ziegler-Natta catalystcontaining 2,2-di-iso-butyl-1,3-dimethoxy-propane......
在０－１００℃温度范围内，由原子转移自由基聚合方法，采用助催化和非助催化体系，引发甲基丙烯酸甲酯聚合，利用＾１３Ｃ ＮＭＲ测定聚甲基丙烯酸甲酯的等规度，发......
本论文用4.2L小试釜,从铝钛比、铝硅比、氢烯比、钛烯比及反应时间等几个方面,对影响丙烯聚合的几个因素进行试验。......
A series of ethylene-norbornene copolymers were synthesised using VO （OEt） Cl<sub>2</sub>/Al<sub>2</sub>Et<sub>3</sub>Cl<s......
