The aim of this thesis is in search of the catalysts which are moderate and stable for preparing mono-dispersed macroporous materials, by means of syndiotactic polymerization of styrene.
为了在纳米至亚纳米受限空间中进行乙烯基芳烃间规聚合,制备单分散三维有序大孔材料,本论文以寻找催化活性适中但不能过高、且平稳的催化剂为目的,设计合成了三类非茂金属催化剂,包括不同配体结构的β-二酮钛类催化剂,2-羟基苯酮钛类催化剂和双核β-二酮类催化剂,其中β-二酮钛类(bfa)TiCl_3、(bfa)_2TiCl_2,2-羟基苯酮钛类[(hmbp)_2TiCl_2],双核β-二酮类{[xyl(acac)_2]TiCl_2}_2、[xyl(acac)_2](TiCl_3)_2,未见在苯乙烯基单体聚合上的应用报道。
DNA extraction method of pathogenic fungi and the optimization of simple sequence repeat PCR system
病原真菌DNA提取方法及简单重复序列聚合酶链反应体系的优化
polymerase chain reaction--short tandem repeat profiling [DNA profiling]
聚合?链反应──短串联重复序列〔DNA纹印测试〕
The Measurement of Polymer Fiber Properties Based on Pseudo-random Sequence
基于伪随机序列的聚合物光纤微弱光信号检测
On the Smarandache Combinatorial Sequences;
关于Smarandache组合序列
Cloning and Sequence Analysis of DNA Polymerase β Gene of Three Cell Lines;
三种细胞系中DNA聚合酶β基因片段的克隆及序列分析
Sequence Analysis of Polymerase Activity Module in L Gene and G-L Intergenetic Region of Rabies Virus;
狂犬病病毒L基因聚合酶活性部位与G-L基因间隔区序列分析
Cloning and Sequence Analysis of the Membrane-anchored Endo -1, 4-β-Glucanase Gene from Gossypium Hirsutum L.;
棉花与膜结合的内切-1,4-β-葡聚糖酶基因的克隆及序列特征分析
Sequence Analyses of 3 Terminal and Polymerase Activity Module in L Gene of Rabies Virus Wild Strains from 2006 to 2007;
2006-2007年狂犬病毒野毒株L基因3’端及聚合酶活性部位序列分析
Cloning and Sequence Analysis of L Gene Polymerase Activity Module of Rabies Virus Isolates from Guangxi;
广西狂犬病病毒L基因聚合酶活性部位的克隆与序列分析
The Application of Clustering Method by Order Listing and Minimal Variation Fits in Sports Talent Selection;
列序聚类法和最小变化拟合在体育选材中的应用
Cloning and Sequence Analysis of Porcine Mannan-binding Lectin C Gene from Landrace
长白猪甘露聚糖结合凝集素-C基因的克隆与序列分析
Polypyrimidine tract binding protein inhibits the function of HBV posttranscriptional regulatory element
多聚嘧啶序列结合蛋白抑制HBV转录后调节元件的功能
Cloning and sequence analysis of full-length mannan-binding lectin gene of Han Chinese
汉族人甘露聚糖结合凝集素全长基因的克隆与序列分析
Sorting sequence has changed. All cubes must be reprocessed; otherwise the data will be incorrectly aggregated.
排序序列已更改。所有多维数据集必须重新处理,否则数据将会错误地聚合。
SYNTHESIS OF SAVE-ENERGY SOLUTION - POLYMERIZED SBR Ⅰ.COMPOSITION ,SEQUENCE DISTRIBUTION ,MICROSTRUCTURE AND MOLECULAR WEIGHT DISTRIBUTION OF COPOLYMER
节能型溶聚丁苯橡胶的合成——Ⅰ.共聚物组成、序列分布、微观结构及分子量分布
Research on the Similarity-Based Clustering of Time Series;
面向相似性的时间序列聚类方法研究
A Clustering Algorithm According to Sequence,Structure and Microarray Data;
基于序列、结构和芯片数据的聚类算法
A Study on Preprocessing and Clustering of Multivariate Time Series
多变量时间序列的预处理和聚类研究