propagating chain end

Preparation of a new β-diketone compound with carbazole and long chain end-alkene groups咔唑功能化的长链端烯β-二酮的制备4cg汉语字典

A new β-diketone compound with a long chain end-alkene,tetradec-13-ene-2,4-dione(BSH) was synthesized from methyl ketone and ester by classical Claisen condensation using(CH3)3COK as strong base.通过Claisen缩合反应,在强碱叔丁醇钾的作用下,把长链端烯引入到β-二酮分子中,合成了一种新型的含长链端烯的β-二酮化合物——13-十四碳烯-2,4-二酮(BSH),并通过红外光谱、核磁共振、质谱和元素分析对其结构进行了确证。4cg汉语字典

The aim of this review is to demonstrate the development of polyolefin catalysts,the catalytic polymerization processes including the coordination polymerization mechanism of chain propagation,the transfer-insertion modes for monomer,the mechanism.涉及配位聚合的链增长机理、单体几种可能的插入模式及聚合的立构控制方式、链转移或链终止机理以及可能存在的催化活性中心的失活过程。4cg汉语字典

The carbon chain growth elementary reaction kinetics of higher alcohol synthesis (HAS) on copper-cobalt catalyst have been studied in this paper.5MPa、空速为 4 0 0 7h- 1的条件下 ,对铜钴催化剂上低碳醇合成的碳链增长基元反应动力学进行了深入的研究 ,根据Anderson -Sclmlz-Flory(ASF)分布 ,求得了铜钴催化剂上 (Cu/Co=0 。4cg汉语字典

Preparation of a new β-diketone compound with carbazole and long chain end-alkene groups咔唑功能化的长链端烯β-二酮的制备4cg汉语字典

Synthesis and Optical Property of a New β-Diketone with Fluorene Derivative and Long Chain End-alkene Groups含芴衍生物的长链端烯β-二酮的合成及其光学性质4cg汉语字典

Study on Synthesis of Fluorescent Polymers Containing Metal Complex End Group and Stilbene-like Pendant Side Chain by Atom Transfer Radical Polymerization;ATRP合成含金属配合物端基及含二苯乙烯类侧链的荧光聚合物研究4cg汉语字典

Synthesis and Thermoresponsive Property of Well-Defined Poly(N-isopropylacrylamide) with Aryl End-Group;链末端带有芳基的聚（N-异丙基丙烯酰胺）合成与温度敏感性研究4cg汉语字典

Investigation on Properties of Room Temperature Vulcanized Encapsulating Silicone Rubber Containing Branched Vinyl End Silicone Oil含支链型端乙烯基硅油室温固化灌封硅橡胶性能研究4cg汉语字典

SOLUTION PROPERTIES AND LONG CHAIN BRANCHING OF POLYVINYL ACETATE聚乙酸乙烯酯的溶液性质及长链支化度4cg汉语字典

Synthesis and Application of the Poly (Long Chain α-olefin) with Ultra High Molecular Weight;超高分子量聚长链α-烯烃的合成及应用4cg汉语字典

Studies on the Alkylation of Benzene with Long Chain Alkene over Modified WO_3/ZrO_2;改性WO_3/ZrO_2上苯和长链烯烃烷基化反应研究4cg汉语字典

The Preparations and Properties of Long Alkyl Chain Acrylic Ester Gels;丙烯酸长链酯共聚物凝胶的合成及性能4cg汉语字典

Synthesis and Characterization of Long Chain Branching Polypropylene and Its Properties Study;基团反应法制备长支链聚丙烯及其性能研究4cg汉语字典

Industrial Application of Long-chain Di-olefin Selective Hydrogenation Process长链双烯烃选择性加氢工艺的工业应用4cg汉语字典

It is long enough to circle the top of the tree.这条链子的长度可以绕圣诞树的顶端一圈。4cg汉语字典

SYNTHSIS OF LONG CHAIN TERMINAL TRIPLE BOND COMPOUNDS--8-NONYNOIC ACID AND HEXADECYNE-(1)长链端炔化合物的合成(8—壬炔酸 1—十六炔烃)4cg汉语字典

Preparation and Performance of Supported Catalysts for Hydroformylation of Higher Olefins;长链烯烃氢甲酰化反应负载型催化剂制备和性能的研究4cg汉语字典

Hydroaminomethylation of Long Chain Olefin in Biphasic and Multiphasic Catalysis System;两相/多相催化体系中长链烯烃的氢氨甲基化反应研究4cg汉语字典

Study on Alkylation of Benzene with Long-chain Olefins over Immobilized AlCl_3 Catalyst;固载化AlCl_3催化剂上苯与长链烯烃烷基化反应的研究4cg汉语字典

Hydroformylation of High Olefin--Influence of Electronic and Steric Effects of Phosphine Ligand;长链烯烃氢甲酰化反应研究——膦配体的电子效应和空间效应影响4cg汉语字典

Hydroformylation of higher olefin catalyzed by water-soluble rhodium-phosphine catalyst in ionic liquid;离子液体中水溶性催化剂催化长链烯烃氢甲酰化反应4cg汉语字典