By using the~ ( 13) C-NMR data, the sequential distribution of styrene-butadiene copolymer initiated by n-BuLi-THF under "quasi-stationary" condition has been investigated. 本文利用~(13)C-NMR,对准稳态下以n-BuLi-THF引发的丁苯共聚物的序列结构进行了研究。
DSC results show that the crystallization induced sequential reordering phenomenon is existed for the resulted copolymer after annealing at 190 ℃ for 10 min. DSC研究表明,在190℃热处理10min后,共混物出现结晶诱导序列重整现象。
Study on sequential structure of ethylene-propylene copolymer by high resolution~ ( 13) C-NMR ~(13)C-NMR波谱法研究乙丙共聚物的微观序列结构
Characterization of sequential structure in a blend of ethylene-propylene copolymer and polystyrene 乙丙共聚物-聚苯乙烯共混物的序列结构表征
The sequential structures and monomer unit ratio of ethylene-propylene copolymer ( EPC) were analyzed by FTIR,()~ 1H NMR and()~ ( 13) C NMR. 用FTIR,1HNMR和13cNMR分析乙丙共聚物的序列结构与链节比。
FTIR and inverse gated decoupling()~ ( 13) C-NMR were used to characterize the main sequential structures in a blend of ethylene-propylene copolymer and polystyrene. 用红外光谱和反转门控13C-NMR谱表征了乙丙共聚物-聚苯乙烯共混物中两组分的主要序列结构。
Analysis of Sequential Structure and Monomer Unit Ratio of Ethylene-propylene Copolymer by Spectroanalysis Method 光谱法分析乙丙共聚物的序列结构及链节比