【摘 要】
:
Main observation and conclusionrnRing-opening metathesis polymerization (ROMP) is a powerful toolbox in preparation of bottlebrush polymers for its high activit
【机 构】
:
School of Materials Science and Engineering,Tianjin Key Laboratory of Composite and Functional Mater
论文部分内容阅读
Main observation and conclusionrnRing-opening metathesis polymerization (ROMP) is a powerful toolbox in preparation of bottlebrush polymers for its high activity.However,the ROMP of macromonomers with repeating tertiary amine groups,for example,poly(2-(dimethylamino)ethyl methacry-late) (PDMAEMA),is inhibited due to the coordination of nitrogen atom with ruthenium center ([Ru]) in the third generation Grubbs catalyst (G3).In this work,norbornenyl functionalized polystyrene-block-PDMAEMA (NB-PS-b-PDMAEMA) macromonomers with dif-ferent length of polystyrene (PS) spacers are prepared.
其他文献
Main observation and conclusionrnAqueous heterogeneous catalysis is a green,sustainable catalytic process that attracts increasing attention,but it often suffer
Main observation and conclusionrnBorane clusters and their derivatives have attracted extensive attention in inorganic chemistry due to their fascinating multi-
为解决现有套管损坏(简称“套损”)检测手段存在的精度低、无法评价套管居中度、应用效果欠佳等技术难题,满足渤海油田套损井检测需求,基于脉冲回波和挠曲波成像技术研制超声
Nanopore sensing is developing into a powerful label-free approach to investigate the features of biomolecules at the single-molecule level.When a charged molec
在羟基氮杂环化合物与卤代烃的无碱、专一性N-烷基化合成吡啶酮类化合物的反应中,N,N-二甲基甲酰胺(DMF)比其他溶剂具有更好的溶剂效应,使得该反应可以在更温和条件下得到更
针对海上油气田开发中遇到的高含水问题,分析国外典型油气田采取的解决方案。研究采用水下分离器方案开发海上气田尤其是深水气田的可行性和优势。针对南海某深水气田高含水的特点,研究不同水下生产流体外输方案和不同水下分离器布置方案的影响,从而确定最优化的水下分离器使用方案。对水下分离器的设计进行研究。总结高含水气田采用水下分离器方案需要考虑的问题。对水下分离器设计的研究有助于我国自主掌握水下分离器的设计技术,打破国外垄断。
Intramolecular charge transfer (ICT) derived from a donor-acceptor system has been applied for years to enhance the charge mobility in the field of organic phot
介绍海底管道主要伴热技术特点,给出主要伴热技术成熟度评估矩阵,梳理伴热方式选择流程,并结合某稠油油田工程实际提出具体解决方案,为今后海上稠油输送提供设计选型参考。
While engineered nanoparticles are widely used and maybe eventually released into the environment,natural nanoparticles are also commonly found in the Earth system.Nanoparticles may critically affect the geochemical migration of associated elements and po
Main observation and conclusionrnA divergent and novel protocol for the preparation of both pyrido[2,3,4-k/]acridine and pyrido[4,3,2-k/]acridine alkaloids was