1
|
Han Y, Liu Z, Zhao Z, Liu B, Cui D. Rare-Earth Metal Bis(alkyl) Complexes Bearing the FluCH 2-THF Ligand: Synthesis, Structures, and Catalysis toward Polymerizations of Conjugated Dienes. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yutong Han
- Department of Polymer Science & Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Zhaohe Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Zhongfu Zhao
- Department of Polymer Science & Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Bo Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
| |
Collapse
|
2
|
Dong X, Robinson JR. The versatile roles of neutral donor ligands in tuning catalyst performance for the ring-opening polymerization of cyclic esters. NEW J CHEM 2022. [DOI: 10.1039/d1nj02694a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The use of neutral donor ligands is an effective strategy to modify catalyst structure and performance in the synthesis of sustainable polymers through the ring-opening polymerization (ROP) of cyclic esters.
Collapse
Affiliation(s)
- Xiang Dong
- Department of Chemistry, Brown University, 324 Brook St. Providence, RI 02912, USA
| | - Jerome R. Robinson
- Department of Chemistry, Brown University, 324 Brook St. Providence, RI 02912, USA
| |
Collapse
|
3
|
Zhu N, Liang T, Huang Y, Pang W, Chen M, Tan C. Influences of Ligand Backbone Substituents on Phosphinecarbonylpalladium and -nickel Catalysts for Ethylene Polymerization and Copolymerization with Polar Monomers. Inorg Chem 2021; 60:13080-13090. [PMID: 34357773 DOI: 10.1021/acs.inorgchem.1c01490] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of phosphinecarbonylpalladium and -nickel catalysts bearing various substituents on the ligand backbone were prepared, characterized, and used in ethylene polymerization and copolymerization with polar monomers. The Pd and Ni catalysts can achieve high activities as well as high polymer molecular weights in both ethylene polymerization and copolymerization with polar monomers. The electron-donating group from the carbonyl side can effectively increase the polymer molecular weights. Utilization of a cyclic backbone structure can increase the catalytic activities at the expense of the polymer molecular weights. Moreover, installation of a pyridyl moiety in the ligand backbone can enable Lewis acid responsiveness and can enhance the polymerization activities. These results suggest the importance of the ligand backbone for the properties of catalysts in ethylene polymerization and copolymerization reactions.
Collapse
Affiliation(s)
- Ningning Zhu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Tao Liang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Yongshuang Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Wenmin Pang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Min Chen
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, China
| | - Chen Tan
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, China
| |
Collapse
|
4
|
Guo L, Zhou M, Guo H, Xu W, Li Z. Dilithium complex incorporating phenyl bridged neutral pyrrolyl-arylamide ligand: Synthesis, characterization, reaction, and catalytic activity. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
5
|
Wang Y, Zhou C, Cheng J. Binuclear Scandium Initiators for the Syndiospecific Triblock Copolymerization of Styrene with ε-Caprolactone. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02602] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yang Wang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei, Anhui 230039, China
| | - Chulu Zhou
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei, Anhui 230039, China
| | - Jianhua Cheng
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei, Anhui 230039, China
| |
Collapse
|
6
|
McGraw ML, Clarke RW, Chen EYX. Compounded Sequence Control in Polymerization of One-Pot Mixtures of Highly Reactive Acrylates by Differentiating Lewis Pairs. J Am Chem Soc 2020; 142:5969-5973. [PMID: 32167755 DOI: 10.1021/jacs.0c01127] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The ability to synthesize well-defined block copolymers (BCPs) from one-pot comonomer mixtures has powerful chemical and practical implications. However, controlling sequences between highly reactive, homologous comonomers such as acrylates during polymerization is challenging. Here we present a Lewis pair polymerization strategy that uniquely utilizes preferential Lewis acid coordination to differentiate between comonomers, distinctive kinetics, and compounded thermodynamic and kinetic differentiation to precisely control sequences and suppress tapering and misincorporation errors, thus achieving well-defined and resolved di- or tri-BCPs of acrylates.
Collapse
Affiliation(s)
- Michael L McGraw
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Ryan W Clarke
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Eugene Y-X Chen
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| |
Collapse
|
7
|
Lin F, Liu Z, Wang M, Liu B, Li S, Cui D. Chain Transfer to Toluene in Styrene Coordination Polymerization. Angew Chem Int Ed Engl 2020; 59:4324-4328. [PMID: 31916646 DOI: 10.1002/anie.201914603] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 01/02/2020] [Indexed: 11/09/2022]
Abstract
The chain-transfer reaction is rather important in coordination polymerization regarding catalytic efficiency, adjustment of molecular weight, and control of chain structure. To date, chain transfer to H2 and Al, Mg, and Zn alkyl compounds and β-H elimination are the commonly encountered modes. Now a novel chain transfer to toluene is reported. By introducing fluorine atoms into the β-diketimine ligands, an inert catalytic system for styrene (St) coordination polymerization was transferred into the highly active one. The activity increased with an increase in the number of fluorines in the ligands. Surprisingly, the molecular weights of resultant polystyrenes are very low (Mn =2000-6600 Da) despite of St loadings, corresponding up to 121 chains per active species. The mechanisms were investigated by DFT simulation, MALDI-TOF MS, isotope tracing experiment and 2D NMR spectrum analyses, which revealed that the fluorine activated the polymerization and directed chain transfer to toluene.
Collapse
Affiliation(s)
- Fei Lin
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.,University of Chinese Academy of Sciences, Changchun Branch, Changchun, 130022, China.,University of Science and Technology of China, Hefei, Anhui, China
| | - Zhaohe Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.,University of Chinese Academy of Sciences, Changchun Branch, Changchun, 130022, China.,University of Science and Technology of China, Hefei, Anhui, China
| | - Meiyan Wang
- Institute of Theoretical Chemistry, Jilin University, Changchun, China
| | - Bo Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Shihui Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.,University of Chinese Academy of Sciences, Changchun Branch, Changchun, 130022, China.,University of Science and Technology of China, Hefei, Anhui, China
| |
Collapse
|
8
|
Lin F, Liu Z, Wang M, Liu B, Li S, Cui D. Chain Transfer to Toluene in Styrene Coordination Polymerization. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Fei Lin
- State Key Laboratory of Polymer Physics and ChemistryChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
- University of Chinese Academy of Sciences Changchun Branch Changchun 130022 China
- University of Science and Technology of China Hefei Anhui China
| | - Zhaohe Liu
- State Key Laboratory of Polymer Physics and ChemistryChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
- University of Chinese Academy of Sciences Changchun Branch Changchun 130022 China
- University of Science and Technology of China Hefei Anhui China
| | - Meiyan Wang
- Institute of Theoretical ChemistryJilin University Changchun China
| | - Bo Liu
- State Key Laboratory of Polymer Physics and ChemistryChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
| | - Shihui Li
- State Key Laboratory of Polymer Physics and ChemistryChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and ChemistryChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
- University of Chinese Academy of Sciences Changchun Branch Changchun 130022 China
- University of Science and Technology of China Hefei Anhui China
| |
Collapse
|
9
|
Li C, Leng X, Han L, Bai H, Yang L, Li C, Zhang S, Liu P, Ma H. Unlocking features of locked-unlocked anionic polymerization. Polym Chem 2020. [DOI: 10.1039/d0py01202e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Unlocking features of the locked-unlocked anionic polymerization were investigated and reported.
Collapse
Affiliation(s)
- Cun Li
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| | - Xuefei Leng
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| | - Li Han
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| | - Hongyuan Bai
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| | - Lincan Yang
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| | - Chao Li
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| | - Songbo Zhang
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| | - Pibo Liu
- King Abdullah University of Science and Technology
- Saudi Arab
| | - Hongwei Ma
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| |
Collapse
|
10
|
Liu S, Bai T, Ni K, Chen Y, Zhao J, Ling J, Ye X, Zhang G. Biased Lewis Pairs: A General Catalytic Approach to Ether‐Ester Block Copolymers with Unlimited Ordering of Sequences. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908904] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Shan Liu
- Faculty of Materials Science and Engineering South China University of Technology Guangzhou 510640 P. R. China
| | - Tianwen Bai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China
| | - Kang Ni
- Hefei National Laboratory for Physical Sciences at the Microscale Department of Chemical Physics University of Science and Technology of China Hefei 230026 China
| | - Ye Chen
- Faculty of Materials Science and Engineering South China University of Technology Guangzhou 510640 P. R. China
| | - Junpeng Zhao
- Faculty of Materials Science and Engineering South China University of Technology Guangzhou 510640 P. R. China
| | - Jun Ling
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China
| | - Xiaodong Ye
- Hefei National Laboratory for Physical Sciences at the Microscale Department of Chemical Physics University of Science and Technology of China Hefei 230026 China
| | - Guangzhao Zhang
- Faculty of Materials Science and Engineering South China University of Technology Guangzhou 510640 P. R. China
| |
Collapse
|
11
|
Liu S, Bai T, Ni K, Chen Y, Zhao J, Ling J, Ye X, Zhang G. Biased Lewis Pairs: A General Catalytic Approach to Ether-Ester Block Copolymers with Unlimited Ordering of Sequences. Angew Chem Int Ed Engl 2019; 58:15478-15487. [PMID: 31464086 DOI: 10.1002/anie.201908904] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/13/2019] [Indexed: 12/12/2022]
Abstract
Polymerizing epoxides after cyclic esters remains a major challenge, though their block copolymers have been extensively studied and used for decades. Reported here is a simple catalytic approach based on a metal-free Lewis pair that addresses the challenge. When the Lewis acid is used in excess of a base, selective (transesterification-free) polymerization of epoxides occurs in the presence of esters, while selectivity toward cyclic esters is achieved by an oppositely biased catalyst. Hence, one-pot block copolymerization can be performed in both ester-first and ether-first orders with selectivity being switchable at any stage, yielding ether-ester-type block copolymers with unlimited ordering of sequences as well as widely variable compositions and architectures. The selectivity can also be switched back and forth several times to generate a multiblock copolymer. Experimental and calculational results indicate that the selectivity originates mainly from the state of catalyst-activated hydroxy species.
Collapse
Affiliation(s)
- Shan Liu
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Tianwen Bai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Kang Ni
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, China
| | - Ye Chen
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Junpeng Zhao
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Jun Ling
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Xiaodong Ye
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, China
| | - Guangzhao Zhang
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| |
Collapse
|
12
|
Liu X, Hong M, Falivene L, Cavallo L, Chen EYX. Closed-Loop Polymer Upcycling by Installing Property-Enhancing Comonomer Sequences and Recyclability. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00817] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xia Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
| | - Miao Hong
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
| | - Laura Falivene
- Physical Sciences and Engineering Division, Kaust Catalysis Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Luigi Cavallo
- Physical Sciences and Engineering Division, Kaust Catalysis Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Eugene Y.-X. Chen
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| |
Collapse
|
13
|
Guo G, Wu X, Yan X, Yan L, Li X, Zhang S, Qiu N. Unprecedentedly High Activity and/or High Regio-/Stereoselectivity of Fluorenyl-Based CGC Allyl-Type η 3:η 1- tert-Butyl(dimethylfluorenylsilyl)amido Ligated Rare Earth Metal Monoalkyl Complexes in Olefin Polymerization. Polymers (Basel) 2019; 11:E836. [PMID: 31072012 PMCID: PMC6572029 DOI: 10.3390/polym11050836] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 04/29/2019] [Accepted: 04/30/2019] [Indexed: 11/16/2022] Open
Abstract
A series of fluorenyl-based constrained-geometry-configuration (CGC) allyl-type rare earth metal monoalkyl complexes bearing the divalent anionic η3:η1-tert-butyl(dimethylfluorenylsilyl)amido (η3:η1-FluSiMe2NtBu) ligand (η3:η1-FluSiMe2NtBu)Ln(CH2SiMe3)(THF)2 (1-3) have been synthesized via the alkane elimination reaction between the FluHSiMe2NHtBu ligand and rare earth metal tri(trimethylsilylmethyl) complexes Ln(CH2SiMe3)3(THF)n. Their structures are characterized by means of NMR spectrum, elemental analyses, and X-ray diffraction. These complexes 1-3 are isostructural and isomorphous, and each of them adopts a distorted-trigonal-bipyramidal configuration containing one η3:η1-FluSiMe2NtBu ligand, one CH2SiMe3 ligand, and two THF molecules. Unlike traditional CGC allyl-type rare earth metal complexes showing no or low activity and regio-/stereoselectivity in styrene or MMA polymerization, these complexes 1-3 exhibit high catalytic activities and/or high regio-/stereoselectivities in the cis-1,4-polymerization of isoprene and myrcene or in the syndiotactic polymerization of styrene under the aid of different activators (borate or borane) and AlR3. The in situ 1H NMR spectra suggest that the exchanges of chelating ligands such as alkyl groups and divalent anionic η3:η1-FluSiMe2NtBu ligands between rare earth metal centers and Al centers result in the formation of a heterobimetallic tetraalkylaluminate complex R2Al(μ-R)2Ln(R)(μ-R)2AlR2, which is activated by activators to form a divalent cationic species [Ln(μ-R)2AlR2]2+ as a catalytically active species in the coordination-insertion polymerization of olefins.
Collapse
Affiliation(s)
- Ge Guo
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China.
| | - Xiaolu Wu
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China.
| | - Xiangqian Yan
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China.
| | - Li Yan
- Analytical and Testing Center, Liangxiang Campus of Beijing Institute of Technology, Liangxiang East Road, Fangshan District, Beijing 102488, China.
| | - Xiaofang Li
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China.
| | - Shaowen Zhang
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China.
| | - Nannan Qiu
- NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing 100021, China.
| |
Collapse
|
14
|
Li S, Yan F, Zhang Z, Dou Y, Zhang W, Cui D. Syndioselective Polymerization of Vinylnaphthalene. Macromol Rapid Commun 2019; 40:e1900061. [DOI: 10.1002/marc.201900061] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 02/26/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Shihui Li
- State Key Laboratory of Polymer Physics and ChemistryChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
| | - Fangbing Yan
- Key Laboratory of Automobile Materials of Ministry of EducationDepartment of Materials Science and EngineeringJilin University Changchun 130025 P. R. China
| | - Zhen Zhang
- Key Laboratory of Automobile Materials of Ministry of EducationDepartment of Materials Science and EngineeringJilin University Changchun 130025 P. R. China
| | - Yanli Dou
- Key Laboratory of Automobile Materials of Ministry of EducationDepartment of Materials Science and EngineeringJilin University Changchun 130025 P. R. China
| | - Wanxi Zhang
- Key Laboratory of Automobile Materials of Ministry of EducationDepartment of Materials Science and EngineeringJilin University Changchun 130025 P. R. China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and ChemistryChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
| |
Collapse
|
15
|
Zhang P, Zhao M, Pang W, Chen C. Lewis acid/base modulation in β-diiminate zinc-catalyzed switchable ring-opening polymerization of rac-lactide. Sci China Chem 2019. [DOI: 10.1007/s11426-018-9414-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
16
|
Liu B, Wang L, Wu C, Cui D. Sequence-controlled ethylene/styrene copolymerization catalyzed by scandium complexes. Polym Chem 2019. [DOI: 10.1039/c8py01326h] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Sequence controlled E/St copolymerization was achieved by tuning the electrophilicity of scandium center and the steric around it, isolating multi-block, random, “pseudo random” and alternating E/St copolymers.
Collapse
Affiliation(s)
- Bo Liu
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese academy of Sciences
- Changchun 130022
- China
| | - Lingfang Wang
- School of Materials Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- China
| | - Chunji Wu
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese academy of Sciences
- Changchun 130022
- China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese academy of Sciences
- Changchun 130022
- China
| |
Collapse
|
17
|
Sarmah K, Mukhopadhyay S, Maji TK, Pratihar S. Switchable Bifunctional Bistate Reusable ZnO–Cu for Selective Oxidation and Reduction Reaction. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03785] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Kasturi Sarmah
- Department of Chemical Sciences, Tezpur University, Napaam, Assam−784028, India
| | | | - Tarun K. Maji
- Department of Chemical Sciences, Tezpur University, Napaam, Assam−784028, India
| | - Sanjay Pratihar
- Department of Chemical Sciences, Tezpur University, Napaam, Assam−784028, India
| |
Collapse
|
18
|
Dong B, Liu H, Peng C, Zhao W, Zheng W, Zhang C, Bi J, Hu Y, Zhang X. Synthesis of stereoblock polybutadiene possessing cis-1,4 and syndiotactic-1,2 segments by imino-pyridine cobalt complex-based catalyst through one-pot polymerization process. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.08.047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
19
|
Zhang K, Cheng Y, Ren W, Sun L, Liu C, Wang D, Guo L, Xu H, Zhao Y. Coordination-Responsive Longitudinal Relaxation Tuning as a Versatile MRI Sensing Protocol for Malignancy Targets. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1800021. [PMID: 30250780 PMCID: PMC6145269 DOI: 10.1002/advs.201800021] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 05/04/2018] [Indexed: 05/27/2023]
Abstract
Biomarkers (e.g., acidity, H2O2, hypoxia, and specific molecules) as one primary component of tumor microenvironments are closely associated with occurrence, invasion, and metastasis of malignancy, thus can act as biological targets. However, their monitoring remains a challenging task. Herein, a coordination-dependent longitudinal relaxation tuning (CLRT) that occurs between a Mn2+ "donor" and a Mn2+ "acceptor" is established to enable biological target sensing. Relying on the differences of coordination ability and spatial structure between donors and acceptors, the biological targets as Mn2+ acceptor can take Mn2+ away from the donors (i.e., modified ligands) in nanoscale probes, which consequently varies T1-weighted (T1W) magnetic resonance imaging (MRI) signal. The coordination ability and spatial structure of the modified Mn2+ "donor" and the pore diameter of donor carrier are demonstrated to determine the feasibility, specificity, and generality of CLRT. With CLRT, this MRI-based ruler is demonstrated for the successful specific detection of biological targets (i.e., hyaluronic acid and glutathione) of malignancy, and its potential in quantitative measurement of hyaluronic acid is further demonstrated. CLRT can serve as a novel and general sensing principle to augment the exploration of a wide range of biological systems.
Collapse
Affiliation(s)
- Kun Zhang
- Department of Medical UltrasoundShanghai Tenth People's Hospitaland Ultrasound Research and Education InstituteTongji University School of Medicine301 Yan‐chang‐zhong RoadShanghai200072P. R. China
- National Center for International Research of Bio‐targeting TheranosticsGuangxi Key Laboratory of Bio‐targeting TheranosticsCollaborative Innovation Center for Tumor‐targeting TheranosticsGuangxi Medical University22 Shuang Yong RoadNanningGuangxi530021P. R. China
| | - Yu Cheng
- Department of Imaging and Interventional RadiologyZhongshan‐Xuhui Hospital of Fudan University966 Huai‐hai‐zhong RoadShanghai200031P. R. China
| | - Weiwei Ren
- Department of Medical UltrasoundShanghai Tenth People's Hospitaland Ultrasound Research and Education InstituteTongji University School of Medicine301 Yan‐chang‐zhong RoadShanghai200072P. R. China
| | - Liping Sun
- Department of Medical UltrasoundShanghai Tenth People's Hospitaland Ultrasound Research and Education InstituteTongji University School of Medicine301 Yan‐chang‐zhong RoadShanghai200072P. R. China
| | - Chang Liu
- Department of Medical UltrasoundShanghai Tenth People's Hospitaland Ultrasound Research and Education InstituteTongji University School of Medicine301 Yan‐chang‐zhong RoadShanghai200072P. R. China
| | - Dan Wang
- Department of Medical UltrasoundShanghai Tenth People's Hospitaland Ultrasound Research and Education InstituteTongji University School of Medicine301 Yan‐chang‐zhong RoadShanghai200072P. R. China
| | - Lehang Guo
- Department of Medical UltrasoundShanghai Tenth People's Hospitaland Ultrasound Research and Education InstituteTongji University School of Medicine301 Yan‐chang‐zhong RoadShanghai200072P. R. China
| | - Huixiong Xu
- Department of Medical UltrasoundShanghai Tenth People's Hospitaland Ultrasound Research and Education InstituteTongji University School of Medicine301 Yan‐chang‐zhong RoadShanghai200072P. R. China
| | - Yongxiang Zhao
- National Center for International Research of Bio‐targeting TheranosticsGuangxi Key Laboratory of Bio‐targeting TheranosticsCollaborative Innovation Center for Tumor‐targeting TheranosticsGuangxi Medical University22 Shuang Yong RoadNanningGuangxi530021P. R. China
| |
Collapse
|
20
|
Zhang Z, Zeng TY, Xia L, Hong CY, Wu DC, You YZ. Synthesis of polymers with on-demand sequence structures via dually switchable and interconvertible polymerizations. Nat Commun 2018; 9:2577. [PMID: 29968716 PMCID: PMC6030099 DOI: 10.1038/s41467-018-05000-2] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 06/08/2018] [Indexed: 12/18/2022] Open
Abstract
The synthesis of polymers with on-demand sequence structures is very important not only for academic researchers but also for industry. However, despite the existing polymerization techniques, it is still difficult to achieve copolymer chains with on-demand sequence structures. Here we report a dually switchable and controlled interconvertible polymerization system; in this system, two distinct orthogonal polymerizations can be selectively switched ON/OFF independent of each other and they can be interconverted promptly and quantitatively according to external stimuli. Thus, the external stimuli can manipulate the insertion of distinct monomers into the resulting copolymer chains temporally, spatially, and orthogonally, allowing the on-demand precise arrangement of sequence structures in the resulting polymers. This dually switchable and interconvertible polymerization system provides a powerful tool for synthesizing materials that are not accessible by other polymerization methods.
Collapse
Affiliation(s)
- Ze Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China
| | - Tian-You Zeng
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China
| | - Lei Xia
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China
| | - Chun-Yan Hong
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China.
| | - De-Cheng Wu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China.
| | - Ye-Zi You
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China.
| |
Collapse
|
21
|
Zhao J, Chen H, Li W, Jia X, Zhang X, Gong D. Polymerization of Isoprene Promoted by Aminophosphine(ory)-Fused Bipyridine Cobalt Complexes: Precise Control of Molecular Weight and cis-1,4-alt-3,4 Sequence. Inorg Chem 2018. [DOI: 10.1021/acs.inorgchem.8b00270] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Junyi Zhao
- Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Huafeng Chen
- Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Wenxin Li
- Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Xiaoyu Jia
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, No. 1799, Jimei Road, Xiamen, Fujian 361021, P. R. China
- Ningbo Urban Environment Observation and Research Station-NUEORS, Chinese Academy of Sciences, Ningbo, Zhejiang 315830, P. R. China
| | - Xuequan Zhang
- Key Laboratory of Synthetic Rubber, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
| | - Dirong Gong
- Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| |
Collapse
|
22
|
Rong W, Wang M, Li S, Cheng J, Liu D, Cui D. Insights into the Formation Process of Yttrium–Aluminum Bimetallic Alkyl Complexes Supported by a Bulky Phosphazene Ligand. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00911] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Weifeng Rong
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- Shandong Institute of non-metallic materials, Jinan 250031, People’s Republic of China
| | - Meiyan Wang
- Institute of Theoretical Chemistry, Jilin University, Changchun 130012, People’s Republic of China
| | - Shihui Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Jianhua Cheng
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Dongtao Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| |
Collapse
|
23
|
Abubekerov M, Khan SI, Diaconescu PL. Ferrocene-bis(phosphinimine) Nickel(II) and Palladium(II) Alkyl Complexes: Influence of the Fe–M (M = Ni and Pd) Interaction on Redox Activity and Olefin Coordination. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00626] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Mark Abubekerov
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Saeed I. Khan
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Paula L. Diaconescu
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| |
Collapse
|
24
|
Quan SM, Wei J, Diaconescu PL. Mechanistic Studies of Redox-Switchable Copolymerization of Lactide and Cyclohexene Oxide by a Zirconium Complex. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00672] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Stephanie M. Quan
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, 607 Charles
E. Young Drive East, Los Angeles, California 90095, United States
| | - Junnian Wei
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, 607 Charles
E. Young Drive East, Los Angeles, California 90095, United States
| | - Paula L. Diaconescu
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, 607 Charles
E. Young Drive East, Los Angeles, California 90095, United States
| |
Collapse
|
25
|
Lin F, Liu Z, Wang T, Cui D. Highly 2,3-Selective Polymerization of Phenylallene and Its Derivatives with Rare-Earth Metal Catalysts: From Amorphous to Crystalline Products. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707601] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Fei Lin
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 China
- University of Chinese Academy of Sciences; Changchun Branch; Changchun 130022 China
| | - Zhaohe Liu
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 China
- University of Chinese Academy of Sciences; Changchun Branch; Changchun 130022 China
| | - Tiantian Wang
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 China
- University of Chinese Academy of Sciences; Changchun Branch; Changchun 130022 China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 China
| |
Collapse
|
26
|
Lin F, Liu Z, Wang T, Cui D. Highly 2,3-Selective Polymerization of Phenylallene and Its Derivatives with Rare-Earth Metal Catalysts: From Amorphous to Crystalline Products. Angew Chem Int Ed Engl 2017; 56:14653-14657. [DOI: 10.1002/anie.201707601] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 08/29/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Fei Lin
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 China
- University of Chinese Academy of Sciences; Changchun Branch; Changchun 130022 China
| | - Zhaohe Liu
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 China
- University of Chinese Academy of Sciences; Changchun Branch; Changchun 130022 China
| | - Tiantian Wang
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 China
- University of Chinese Academy of Sciences; Changchun Branch; Changchun 130022 China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 China
| |
Collapse
|
27
|
Zhao M, Chen C. Accessing Multiple Catalytically Active States in Redox-Controlled Olefin Polymerization. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02564] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Minhui Zhao
- CAS Key Laboratory of Soft
Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Changle Chen
- CAS Key Laboratory of Soft
Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| |
Collapse
|
28
|
Chen J, Gao Y, Xiong S, Delferro M, Lohr TL, Marks TJ. Metal and Counteranion Nuclearity Effects in Organoscandium-Catalyzed Isoprene Polymerization and Copolymerization. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01621] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jiazhen Chen
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Yanshan Gao
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Shuoyan Xiong
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Massimiliano Delferro
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Tracy L. Lohr
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Tobin J. Marks
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| |
Collapse
|
29
|
Semwal S, Choudhury J. Switch in Catalyst State: Single Bifunctional Bi-state Catalyst for Two Different Reactions. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702142] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shrivats Semwal
- Organometallics & Smart Materials Laboratory, Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal 462066 India
| | - Joyanta Choudhury
- Organometallics & Smart Materials Laboratory, Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal 462066 India
| |
Collapse
|
30
|
Semwal S, Choudhury J. Switch in Catalyst State: Single Bifunctional Bi-state Catalyst for Two Different Reactions. Angew Chem Int Ed Engl 2017; 56:5556-5560. [DOI: 10.1002/anie.201702142] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 03/22/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Shrivats Semwal
- Organometallics & Smart Materials Laboratory, Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal 462066 India
| | - Joyanta Choudhury
- Organometallics & Smart Materials Laboratory, Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal 462066 India
| |
Collapse
|
31
|
Lin F, Wang M, Pan Y, Tang T, Cui D, Liu B. Sequence and Regularity Controlled Coordination Copolymerization of Butadiene and Styrene: Strategy and Mechanism. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02413] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Fei Lin
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of
Chinese Academy of Sciences, Changchun Branch, Changchun 130022, China
| | - Meiyan Wang
- Institute
of Theoretical Chemistry, Jilin University, Changchun 130022, China
| | - Yupeng Pan
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of
Chinese Academy of Sciences, Changchun Branch, Changchun 130022, China
| | - Tao Tang
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Dongmei Cui
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Bo Liu
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| |
Collapse
|
32
|
Lowe MY, Shu S, Quan SM, Diaconescu PL. Investigation of redox switchable titanium and zirconium catalysts for the ring opening polymerization of cyclic esters and epoxides. Inorg Chem Front 2017. [DOI: 10.1039/c7qi00227k] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and characterization of (thiolfan*)Zr(OtBu)2 (thiolfan* = 1,1′-di(2,4-di-tert-butyl-6-thiophenoxide)ferrocene) is reported, as well as its activity toward the ring-opening polymerizations of l-lactide and ε-caprolactone.
Collapse
Affiliation(s)
- Miranda Y. Lowe
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- Los Angeles
- USA
| | - Sisheng Shu
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- Los Angeles
- USA
| | - Stephanie M. Quan
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- Los Angeles
- USA
| | - Paula L. Diaconescu
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- Los Angeles
- USA
| |
Collapse
|
33
|
Chile LE, Ebrahimi T, Wong A, Aluthge DC, Hatzikiriakos SG, Mehrkhodavandi P. Impact of aryloxy initiators on the living and immortal polymerization of lactide. Dalton Trans 2017; 46:6723-6733. [DOI: 10.1039/c7dt00990a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This report describes two different methodologies for the synthesis of aryl end-functionalized poly(lactide)s (PLAs) catalyzed by indium complexes.
Collapse
Affiliation(s)
- L.-E. Chile
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
- Department of Chemical and Biological Engineering
| | - T. Ebrahimi
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
- Department of Chemical and Biological Engineering
| | - A. Wong
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - D. C. Aluthge
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - S. G. Hatzikiriakos
- Department of Chemical and Biological Engineering
- University of British Columbia
- Vancouver
- Canada
| | - P. Mehrkhodavandi
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| |
Collapse
|