OLEFIN

作品数：174被引量：298H指数：9
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Novel photoresponsive dinuclear nickel catalysts for ethylene (co)polymerization
《Science China Chemistry》2025年第2期714-722,共9页Chenlong Nan Tong Pang Jiaxing Zhao Lijia Fan Chen Zou Xin-Qi Hao Mao-Ping Song Jun-Fang Gong Changle Chen Hui Jiang 
supported by the National Natural Science Foundation of China(22471247,U1904212 and U2004191);the Natural Science Foundation of Henan Province(202300410477 and 222300420294);the China Postdoctoral Science Foundation(2020 M672260).
Compared with the conventional strategies of electronic and/or steric perturbation,catalytic olefin polymerization modulated by light irradiation or metal-metal cooperativity effect is a fascinating challenge that att...
关键词：PHOTORESPONSIVE dinuclear catalyst nickel(II) polar monomer olefin copolymerization 
Polyolefin vitrimers bearing acetoacetate functionality
《Science China Chemistry》2024年第11期3861-3867,共7页Zihao Wang Yue Liu Wenmin Pang Ao Chen Min Chen 
supported by the National Natural Science Foundation of China (21971230, U19B6001);the Natural Science Foundation of Anhui Province (2308085Y35, 2023AH030002);the Hefei Natural Science Foundation (202304);the strong support from Professor Changle Chen (University of Science and Technology of China)。
Polyolefin vitrimers are polymer networks bearing reversible covalent crosslinking points, enabling them to be reprocessed and recycled. In this contribution, a series of polyolefin vitrimers were designed based on th...
关键词：polyolefin vitrimers acetoacetate group polar monomer olefin copolymerization 
Quantitative understanding of phase segregation behaviors by precisely building discrete oligo-ester-b-oligo-olefin block copolymers
《Science China Chemistry》2024年第3期1008-1016,共9页Yuxin Liu Rui Tan Haibing Wu Xue-Hui Dong Zhengbiao Zhang 
supported by the National Natural Science Foundation of China(21925107,22273026);China Postdoctoral Science Foundation(71st,2022M712306);the Collaborative Innovation Center of Suzhou Nano Science and Technology;the Jiangsu Funding Program for Excellent Postdoctoral Talent。
Block copolymers(BCPs) with high Flory-Huggins parameter(χ) and balanced surface energy have aroused tremendous interest for ultra-small nanopatterns processing.However,high χ and balanced surface energy are general...
关键词：discrete polymer iterative growth SELF-ASSEMBLY highχ balanced surface 
Rhodium-catalyzed enantio-and diastereoselective carboamidation of bicyclic olefins toward construction of remote chiral centers and axis
《Science China Chemistry》2023年第7期2046-2052,共7页Jinlei Wang Xingwei Li 
supported by the National Natural Science Foundation of China(21525208);the Fundamental Research Funds for the Central Universities(2020CSLZ005,GK202103031)
The precise control of multiple chiral elements through a single step catalytic process remains a significant challenge in asymmetric catalysis.Reported herein is rhodium-catalyzed three-component asymmetric carboamid...
关键词：carboamidation axial chirality DESYMMETRIZATION bicyclic olefin TRANSMETALATION 
New chiral N-heterocyclic olefin bifunctional organocatalysis inα-functionalization ofβ-ketoesters
《Science China Chemistry》2023年第1期147-154,共8页Sijing Wang Cefei Zhang Da Li Yuqiao Zhou Zhishan Su Xiaoming Feng Shunxi Dong 
supported by the National Natural Science Foundation of China(92056107,22271199,21801175);the Sichuan University(2020SCUNL204)。
N-heterocyclic olefins(NHOs)possess an electron-rich and highly polarized C=C double bond due to the donating property of nitrogen atoms.This feature imparts exocyclic carbon atom of NHOs with strong basicity and high...
关键词：ORGANOCATALYST N-heterocyclic olefin asymmetric synthesis amination trifluoromethylthiolation 
Decorated zeolites for chemoselective alkyne/olefin separations被引量：1
《Science China Chemistry》2020年第9期1177-1178,共2页Feng-Shou Xiao 
Light olefins,such as ethylene,propylene,and 1,3-butadiene,are basic chemical raw materials with increasing global demand of approaching 400 million metric tons per year.During the industrial production of light olefi...
关键词：separation APPROACHING PROPYLENE 
Polar comonomer incorporation using cationic Ni α-diimine olefin polymerization catalysts
《Science China Chemistry》2019年第2期153-154,共2页Jordan M.Kaiser Brian K.Long 
Polyolefins are an indispensable class of materials that have become the most widely produced and utilized polymers today.They are readily synthesized from cheap and abundant monomer feedstocks,such as ethylene and pr...
关键词：NI Α-DIIMINE OLEFIN POLYMERIZATION catalysts 
A novel method to anchor methanesulfonic acid in silica matrix
《Science China Chemistry》2016年第3期370-379,共10页Naiwang Liu Jiajia Yao Li Shi 
Methanesulfonic acid （MSA） was successfully immobilized in silica, leading to a novel and environmentally friendly solid acid catalyst SMSA. The most important feature of SMSA is that anhydrous formic acid is used t...
关键词：methanesulfonic acid olefin removal solid acid catalyst ALKYLATION 
Theoretical investigation on regioselectivity of aromatic ketones in the addition with olefin catalyzed by RuH_2(CO)(PPh_3)_3被引量：1
《Science China Chemistry》2000年第4期412-420,共9页雷鸣 冯文林 杜洪光 徐振峰 
Ab initio method is employed to study the structures of twelve aromatic ketones at HF/3-21G, HF/6-31G and HF/6-31G levels, respectively. A theoretical analysis is also carried out to study the regioselectivity and rea...
关键词：ab INITIO method ADDITION CLEAVAGE of C-H BOND Ru complex. 
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