立构规整性,stereoregularity
1)stereoregularity[,sti?ri?,reɡju"l?riti]立构规整性
1.The sequence distribution of itsstereoregularity has been studied ~13CNMR spectra of by carbonyl, methyl and quaternary carbons.合成了聚甲基丙烯酸正十八酯的梳状聚合物,分别用~(13)CNMR谱和FTIR分峰技术研究了立构规整性及其数均序列长度。
英文短句/例句
1.The Study of Anionic Polymerization on Controlling the Degree of Tacticity of Polymers and Synthesis of Block Polymers;阴离子聚合控制聚合物立构规整性及其嵌段共聚物的合成研究
2.Study on Syndiotactic-rich and High Molecular Weight PVA;高立构规整度高相对分子质量聚乙烯醇的研究
3.A Neodymium-Based Catalyst for Styrene Coordination Polymerization;稀土催化合成立构规整聚苯乙烯的研究
4.Study on Synthesis and Modification of Polypropylene with Different Tacticity;不同立体规整性聚丙烯的合成及改性研究
5.Asset Specificity and Risk Aversion in Adjustment of Agricultural Production Structure;资产专用性与农业结构调整风险规避
6.The Integration of Individual Psychological Structure and the Cultivation of Children s Independence;个性心理结构的整体性与幼儿独立性的培养
7.The Research on the Independence of Governmental Regulatory Organization for Retail Industry in China;我国零售业政府规制机构独立性研究
8.Structure Design of Pile Foundation with the Aid of Nonlinear Mixed-Integer Programming应用非线性混合整数规划进行桩基结构设计
9.Readjusting the Structure of Our Refining Industry forImproving Refinery Economy of Scale;调整我国炼油工业结构 提高炼厂规模经济性
10.The Risk of the Agriculture Industrial Structure Strategy Adjustment and the Way of Avoiding it;农业产业结构战略性调整面临的风险及其规避
11.Independence of the People s Bank of China:Analysis and Re-design Provisions;中国人民银行独立性:条文分析与规范重构
12.Institutional Choice of Independence of Regulatory Organizations for Naturally Monopolistic Industries in China;中国自然垄断产业规制机构独立性的制度选择
13.stereoregular polybutadiene有规立构聚丁二烯橡胶
14.stereoblock copolymer立构规正嵌段共聚物
15.stereoblock polymer立构规正嵌段聚合物
16.Design of Solid Carbide End Milling Cutter for High-Speed Cutting and Study of Its Property;高速整体硬质合金立铣刀结构设计及其性能研究
17.It provides the principal contractual obligations determining how governments frame and implement domestic trade legislation and regulations.它规定了政府决策机构如何设立和实施国内贸易立法与法规的主要契约性义务。
18.Study on Structure Regulation of Marine Fishing Motor Vessels by Structure Adjustment to Powerboats by Multi-Goal Attainment Linear Programming in Maoming Marine Fishery;多目标线性规划法对茂名市海洋机动渔船结构调整的研究
相关短句/例句
tacticity[t?k"tisiti]立构规整度
pared with the aqueous phase precipitation polymerization of AN and aqueous phase suspension polymerization of AN, The pentadtacticity of PAN obtained by precipitation polymerization in supercritical CO_2 was analyzed by ~ 13C NMR method.并认为,与其他两种PAN相比,CO2PAN等规立构规整度偏低的原因是由于所采用的CO2溶剂的非极性效应所致。
2.The triadtacticity of PAN obtained by precipitation polymerization in supercritical carbon dioxide was analyzed by 13C NMR and IR method.以13C核磁共振技术为主,红外光谱技术为辅,测定和分析了超临界CO2中合成的聚丙烯腈(简称CO2 PAN)的三单元组立构规整度,推测出其在三单元序列上符合Bernoulli理论统计模型。
3.The molecular weight distribution and thetacticity of the HMW PVA were characterized.采用醋酸乙烯在低温下以水为溶剂的紫外光引发乳液聚合方法，制得了高分子量的ＰＶＡ（为１３４００），并对所合成ＰＶＡ进行了分子量与分子量分布以及立构规整度的表征。
3)high ster-eotacticity高立构规整度
4)regular molecular arrangement立体规整结构
5)syndiotacticity[,sindi?ut?k"tisiti]间同立构规整度
6)isotactic index全同立构规整度
延伸阅读
立构规整度分子式：CAS号：性质：表示有规立构聚合物规整程度的术语。是立构规整聚合物占总聚合物的分数。在有规立构聚合物中，不可能百分之百全是全同或间同构型。由于使用的催化剂和聚合条件的影响，其所含立构规整链的数量是不同的。常使用具有一定构型排列的几个重复单元的组合(如二单元组、三单元组、四单元组、五单元组等)来表示聚合物的立构规整度。以三单元组为例，则可能有全同立构(mm)、间同立构(rr)、和杂同立构(mr)三种三单元组。故可通过测量这几种单元组的含量来表征聚合物的立构规整度。高分辨核磁共振是测量聚合物立构规整度的最常用方法。
