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Wiebe MA, Kundu S, LaPierre EA, Patrick BO, Manners I. Transition-Metal-Free Dehydropolymerization of Phosphine-Boranes at Ambient Temperature. Chemistry 2023; 29:e202202897. [PMID: 36196020 DOI: 10.1002/chem.202202897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Indexed: 11/16/2022]
Abstract
Stoichiometric reaction of phosphine-borane adducts RR'PH⋅BH3 (R=Ph, R'=H, Ph, Et, and R=R'=t Bu) with the strong acid HNTf2 (Tf=SO2 CF3 ) leads to H2 elimination and the formation of the triflimido derivatives, RR'PH⋅BH2 (NTf2 ). Subsequent deprotonation by using bases, such as diisopropylethylamine or the carbene IPr (IPr=N,N'-bis(2,6-diisopropylphenyl)imidazol-2-ylidene), led to the formation of P-mono- or -disubstituted polyphosphinoboranes [RR'P-BH2 ]n . Evidence for the intermediacy of transient phosphinoborane monomers, RR'PBH2 , was provided by trapping reactions.
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Affiliation(s)
- Matthew A Wiebe
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd, Victoria, British Columbia, V8P 5 C2, Canada
| | - Subrata Kundu
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd, Victoria, British Columbia, V8P 5 C2, Canada.,Department of Chemistry, Indian Institute of Technology Delhi Hauz Khas, New Delhi, 110016, India
| | - Etienne A LaPierre
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd, Victoria, British Columbia, V8P 5 C2, Canada
| | - Brian O Patrick
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, V6T 1Z1, Canada
| | - Ian Manners
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd, Victoria, British Columbia, V8P 5 C2, Canada
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2
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Jäkle F, Gallei M, Qiu H. 30 Year anniversary of polyferrocenylsilanes: An inspiration for new advances in main group and transition metal-containing polymers. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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3
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Schön F, Sigmund LM, Schneider F, Hartmann D, Wiebe MA, Manners I, Greb L. Calix[4]pyrrolato Aluminate Catalyzes the Dehydrocoupling of Phenylphosphine Borane to High Molar Weight Polymers. Angew Chem Int Ed Engl 2022; 61:e202202176. [PMID: 35235698 PMCID: PMC9313825 DOI: 10.1002/anie.202202176] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Indexed: 01/13/2023]
Abstract
High molar weight polyphosphinoboranes represent materials with auspicious properties, but their preparation requires transition metal‐based catalysts. Here, calix[4]pyrrolato aluminate is shown to induce the dehydropolymerization of phosphine boranes to high molar mass polyphosphinoboranes (up to Mn=43 000 Da). Combined GPC and 31P DOSY NMR spectroscopic analyses, quantum chemical computations, and stoichiometric reactions disclose a P−H bond activation by the cooperative action of the square‐planar aluminate and the electron‐rich ligand framework. This first transition metal‐free catalyst for P−B dehydrocoupling overcomes the problem of residual d‐block metal impurities in the resulting polymers that might interfere with the reproducibility of the properties for this emerging class of inorganic materials.
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Affiliation(s)
- Florian Schön
- Department of Chemistry University of Victoria Victoria BC, V8P 5C2 Canada
| | - Lukas M. Sigmund
- Anorganisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Friederike Schneider
- Anorganisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Deborah Hartmann
- Department of Chemistry University of Victoria Victoria BC, V8P 5C2 Canada
- Anorganisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Matthew A. Wiebe
- Department of Chemistry University of Victoria Victoria BC, V8P 5C2 Canada
| | - Ian Manners
- Department of Chemistry University of Victoria Victoria BC, V8P 5C2 Canada
| | - Lutz Greb
- Anorganische Chemie, Freie Universität Berlin Fabeckstraße 34–36 14195 Berlin Germany
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4
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Knights AW, Nascimento MA, Manners I. An investigation of polyphosphinoboranes as flame-retardant materials. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124795] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Treichel M, Gaitor JC, Birch C, Vinskus JL, Noonan KJ. Anion-exchange membranes derived from main group and metal-based cations. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Schön F, Sigmund LM, Schneider F, Hartmann D, Wiebe MA, Manners I, Greb L. Calix[4]pyrrolato Aluminate Catalyzes the Dehydrocoupling of Phenylphosphine Borane to High Molar Weight Polymers. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Florian Schön
- Department of Chemistry University of Victoria Victoria BC, V8P 5C2 Canada
| | - Lukas M. Sigmund
- Anorganisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Friederike Schneider
- Anorganisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Deborah Hartmann
- Department of Chemistry University of Victoria Victoria BC, V8P 5C2 Canada
- Anorganisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Matthew A. Wiebe
- Department of Chemistry University of Victoria Victoria BC, V8P 5C2 Canada
| | - Ian Manners
- Department of Chemistry University of Victoria Victoria BC, V8P 5C2 Canada
| | - Lutz Greb
- Anorganische Chemie, Freie Universität Berlin Fabeckstraße 34–36 14195 Berlin Germany
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7
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Dhara M, Giri N, Dutta A, Patra A, Sastry P, Ingole MS, Jana T. Enhancing segmental compatibility and tuning the structure-property relationship in ferrocenylsilane tethered polyurethane. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122807] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Jung D, Raffan-Montoya F, Ramachandran R, Zhang Y, Islamoglu T, Marin G, Qian EA, Dziedzic RM, Farha OK, Stoliarov SI, Spokoyny AM. Cross-linked porous polyurethane materials featuring dodecaborate clusters as inorganic polyol equivalents. Chem Commun (Camb) 2019; 55:8852-8855. [PMID: 31187812 DOI: 10.1039/c9cc03350e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the discovery that a perhydroxylated dodecaborate cluster ([B12(OH)12]2-) can act as an inorganic polyol, serving as a molecular cross-linker in the synthesis of polyurethane-based materials. We further demonstrate how the inherent robustness of the utilized boron cluster can effectively enhance the thermal stability of the produced polyurethane materials incorporating [B12(OH)12]2- building blocks compared to analogous polymers made from carbon-based polyols. Ultimately, this approach provides a potential route to tune the chemical and physical properties of soft materials through incorporation of polyhedral boron-rich clusters into the polymer network.
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Affiliation(s)
- Dahee Jung
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, CA 90095, USA.
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10
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Carriedo GA, de la Campa R, Soto AP. Polyphosphazenes - Synthetically Versatile Block Copolymers (“Multi-Tool”) for Self-Assembly. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800126] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Gabino A. Carriedo
- Department of Organic and Inorganic Chemistry; Facultad de Química; Universidad de Oviedo; Julián Clavería s/n 33006 Oviedo Spain
| | - Raquel de la Campa
- Department of Organic and Inorganic Chemistry; Facultad de Química; Universidad de Oviedo; Julián Clavería s/n 33006 Oviedo Spain
| | - Alejandro Presa Soto
- Department of Organic and Inorganic Chemistry; Facultad de Química; Universidad de Oviedo; Julián Clavería s/n 33006 Oviedo Spain
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11
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Jones BH, Wheeler DR, Black HT, Stavig ME, Sawyer PS, Giron NH, Celina MC, Lambert TN, Alam TM. Stress Relaxation in Epoxy Thermosets via a Ferrocene-Based Amine Curing Agent. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00501] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Brad H. Jones
- Sandia National
Laboratories, Albuquerque, New Mexico 87185, United States
| | - David R. Wheeler
- Sandia National
Laboratories, Albuquerque, New Mexico 87185, United States
| | - Hayden T. Black
- Sandia National
Laboratories, Albuquerque, New Mexico 87185, United States
| | - Mark E. Stavig
- Sandia National
Laboratories, Albuquerque, New Mexico 87185, United States
| | - Patricia S. Sawyer
- Sandia National
Laboratories, Albuquerque, New Mexico 87185, United States
| | - Nicholas H. Giron
- Sandia National
Laboratories, Albuquerque, New Mexico 87185, United States
| | - Mathias C. Celina
- Sandia National
Laboratories, Albuquerque, New Mexico 87185, United States
| | - Timothy N. Lambert
- Sandia National
Laboratories, Albuquerque, New Mexico 87185, United States
| | - Todd M. Alam
- Sandia National
Laboratories, Albuquerque, New Mexico 87185, United States
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12
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Teimuri-Mofrad R, Mirzaei F, Abbasi H, D. Safa K. Synthesis of new binuclear ferrocenyl compounds by hydrosilylation reactions. CR CHIM 2017. [DOI: 10.1016/j.crci.2016.06.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Henke H, Brüggemann O, Teasdale I. Branched Macromolecular Architectures for Degradable, Multifunctional Phosphorus-Based Polymers. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201600644] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 11/10/2016] [Indexed: 12/23/2022]
Affiliation(s)
- Helena Henke
- Institute of Polymer Chemistry; Johannes Kepler University Linz; Altenberger Straße 69 4040 Linz Austria
| | - Oliver Brüggemann
- Institute of Polymer Chemistry; Johannes Kepler University Linz; Altenberger Straße 69 4040 Linz Austria
| | - Ian Teasdale
- Institute of Polymer Chemistry; Johannes Kepler University Linz; Altenberger Straße 69 4040 Linz Austria
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14
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Hildebrandt A, Al Khalyfeh K, Nawroth JF, Jordan R. Electron Transfer Studies on Conjugated Ferrocenyl-Containing Oligomers. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00673] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexander Hildebrandt
- Institute
of Chemistry, Inorganic Chemistry, Faculty of Natural Sciences, Technische Universität Chemnitz, D-09107 Chemnitz, Germany
| | - Khaled Al Khalyfeh
- Institute
of Chemistry, Inorganic Chemistry, Faculty of Natural Sciences, Technische Universität Chemnitz, D-09107 Chemnitz, Germany
| | - Jonas F. Nawroth
- Chair
of Macromolecular Chemistry, School of Science, Technische Universität Dresden, Mommsenstraße 4, 01069 Dresden, Germany
| | - Rainer Jordan
- Chair
of Macromolecular Chemistry, School of Science, Technische Universität Dresden, Mommsenstraße 4, 01069 Dresden, Germany
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15
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Shah FU, Akhtar F, Khan MSU, Akhter Z, Antzutkin ON. Solid-state 13 C, 15 N and 29 Si NMR characterization of block copolymers with CO 2 capture properties. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2016; 54:734-739. [PMID: 27133214 DOI: 10.1002/mrc.4440] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 02/25/2016] [Accepted: 03/25/2016] [Indexed: 06/05/2023]
Abstract
Natural abundance solid-state multinuclear (13 C, 15 N and 29 Si) cross-polarization magic-angle-spinning NMR was used to study structures of three block copolymers based on polyamide and dimethylsiloxane and two polyamides, one of which including ferrocene in its structure. Assignment of most of the resonance lines in 13 C, 15 N and 29 Si cross-polarization magic-angle-spinning NMR spectra were suggested. A comparative analysis of 13 C isotropic chemical shifts of polyamides with and without ferrocene has revealed a systematic shift towards higher δ -values (de-shielding) explained as the incorporation of paramagnetic ferrocene into the polyamide backbone. In addition, the 13 C NMR resonance lines for ferrocene-based polyamide were significantly broadened, because of paramagnetic effects from ferrocene incorporated in the structure of this polyamide polymer. Single resonance lines with chemical shifts ranging from 88.1 to 91.5 ppm were observed for 15 N sites in all of studied polyamide samples. 29 Si chemical shifts were found to be around -22.4 ppm in polydimethylsiloxane samples that falls in the range of chemical shifts for alkylsiloxane compounds. The CO2 capture performance of polyamide-dimethylsiloxane-based block copolymers was measured as a function of temperature and pressure. The data revealed that these polymeric materials have potential to uptake CO2 (up to 9.6 cm3 g-1 ) at ambient pressures and in the temperature interval 30-40 °C. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Faiz Ullah Shah
- Chemistry of Interfaces, Luleå University of Technology, SE-97187, Luleå, Sweden
| | - Farid Akhtar
- Division of Material Science, Luleå University of Technology, SE-97187, Luleå, Sweden
| | | | - Zareen Akhter
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Oleg N Antzutkin
- Chemistry of Interfaces, Luleå University of Technology, SE-97187, Luleå, Sweden
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16
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Khan MSU, Janjua NK, Sabahat S, Akhter Z, Ullah M. Study on thermal, spectroscopic and electrochemical behavior of some ferrocene-containing organometallic polyesteramides and their siloxane-based block copolymers. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-1003-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Wu S, Rheingold AL, Golen JA, Grimm AB, Protasiewicz JD. Synthesis of a Luminescent Azaphosphole. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501279] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shanshan Wu
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio, 44106, United States, http://www.case.edu/chem/faculty/protasiewicz/group/Protasiewicz/Welcome.html
| | - Arnold L. Rheingold
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, San Diego, California, 92093, United States
| | - James A. Golen
- Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth, North Dartmouth, Massachusetts, 02747, United States
| | - Alexandra B. Grimm
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio, 44106, United States, http://www.case.edu/chem/faculty/protasiewicz/group/Protasiewicz/Welcome.html
| | - John D. Protasiewicz
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio, 44106, United States, http://www.case.edu/chem/faculty/protasiewicz/group/Protasiewicz/Welcome.html
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Hailes RLN, Oliver AM, Gwyther J, Whittell GR, Manners I. Polyferrocenylsilanes: synthesis, properties, and applications. Chem Soc Rev 2016; 45:5358-407. [DOI: 10.1039/c6cs00155f] [Citation(s) in RCA: 221] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This comprehensive review covers polyferrocenylsilanes (PFSs), a well-established, readily accessible class of main chain organosilicon metallopolymer. The focus is on the recent advances involving PFS homopolymers and block copolymers and the article covers the synthesis, properties, and applications of these fascinating materials.
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Affiliation(s)
| | | | | | | | - Ian Manners
- School of Chemistry
- University of Bristol
- Bristol
- UK
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Abd-El-Aziz A, Kucukkaya I, Wagner B. Advances in Metal-Containing Macromolecules. REFERENCE MODULE IN MATERIALS SCIENCE AND MATERIALS ENGINEERING 2016. [DOI: 10.1016/b978-0-12-803581-8.01431-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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20
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Properties of polyferrocenylsilane dissolved in ionic liquids. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.10.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Wu S, Rheingold AL, Protasiewicz JD. Luminescent materials containing multiple benzoxaphosphole units. Chem Commun (Camb) 2014; 50:11036-8. [DOI: 10.1039/c4cc05259e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of bisbenzoxaphospholes and a trisbenzoxaphosphole have been prepared and characterized.
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Affiliation(s)
- Shanshan Wu
- Department of Chemistry
- Case Western Reserve University
- Cleveland, USA
| | - Arnold L. Rheingold
- Department of Chemistry and Biochemistry
- University of California
- La Jolla, USA
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Safa KD, Abbasi H, Teimuri-Mofrad R, Charandabi FA. [Tris(alkoxydimethylsilyl)methyl]alkylferrocenes as New Ferrocenyl Multifunctional Silyl Ethers. Aust J Chem 2014. [DOI: 10.1071/ch13632] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
[Tris(trimethylsilyl)methyl]alkylferrocenes and [tris(dimethylsilyl)methyl]alkylferrocenes were synthesized by treatment of tris(trimethylsilyl)methyllithium and tris(dimethylsilyl)methyllithium in THF with 3-bromopropylferrocene or 4-bromobutylferrocene at 0°C. [Tris(alkoxydimethylsilyl)methyl]alkylferrocenes were obtained by dehydrocoupling with various aliphatic and benzylic alcohols in the presence of the Karstedt catalyst (platinum(0)-1,3-divinyl-1,1,3,3-tetramethyldisiloxane in xylene) in good to excellent yields. 4-[Tris(benzyloxydimethylsilyl)methyl]butylferrocene was also prepared from the transetherification of 4-[tris(methoxydimethylsilyl)methyl]butylferrocene with benzyl alcohol in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene as catalyst.
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Synthesis, characterization and morphological studies of some novel siloxane-based block copolymeric materials containing organometallic as well as organic polyesteramides. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Willenbacher J, Altintas O, Roesky PW, Barner-Kowollik C. Single-chain self-folding of synthetic polymers induced by metal-ligand complexation. Macromol Rapid Commun 2013; 35:45-51. [PMID: 24123407 DOI: 10.1002/marc.201300594] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 09/09/2013] [Indexed: 11/05/2022]
Abstract
The controlled folding of a single polymer chain is for the first time realized by metal- complexation. α,ω-Bromine functional linear polymers are prepared via activators regenerated by electron transfer (ARGET) ATRP (M¯n,SEC = 5900 g mol(-1) , Đ = 1.07 and 12 000 g mol(-1) , Đ = 1.06) and the end groups of the polymers are subsequently converted to azide functionalities. A copper-catalyzed azide-alkyne cycloaddition (CuAAC) reaction is carried out in the presence of a novel triphenylphosphine ligand and the polymers to afford homotelechelic bis-triphenylphosphine polymeric-macroligands (MLs) (M¯n,SEC = 6600 g mol(-1) , Đ = 1.07, and 12 800 g mol(-1) , Đ = 1.06). Single-chain metal complexes (SCMCs) are formed in the presence of Pd(II) ions in highly diluted solution at ambient temperature. The results derived via (1) H and (31) P{(1) H} NMR experiments, SEC, and DLS unambiguously evidence the efficient formation of SCMCs via metal ligand complexation.
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Affiliation(s)
- Johannes Willenbacher
- Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76128, Karlsruhe, Germany; Institut für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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Goseki R, Hirao A, Kakimoto MA, Hayakawa T. Cylindrical Nanostructure of Rigid-Rod POSS-Containing Polymethacrylate from a Star-Branched Block Copolymer. ACS Macro Lett 2013; 2:625-629. [PMID: 35581795 DOI: 10.1021/mz400125t] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A nanostructure consisting of rectangular polyhedral oligomeric silsesquioxane (POSS) nanodomains packed into a hexagonal lattice was observed in POSS-containing A2B star-branched polymers. The A2B star-branched polymers, which comprised polystyrene (A) and bulky POSS-containing poly(methacrylate) (PMAPOSS) (B) units, were synthesized by anionic polymerization and addition reaction. The self-assembled structures of the A2B star-branched polymers were studied via transmission electron microscopy (TEM) and small- and wide-angle X-ray scattering (SAXS and WAXS, respectively). It was found that a rectangular nanostructure was packed into a hexagonal arrangement of nanodomains for a PMAPOSS volume fraction of 40 vol. % in the star-branched polymer. In addition, the cylinder-like nanostructure of bulky POSS observed, which is not observed in the case of PS-b-PMAPOSS diblock copolymers, was formed owing to the curvature effect, which is the result of the branched architecture of the copolymer.
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Affiliation(s)
- Raita Goseki
- Department of Organic, Polymeric
Materials, Tokyo Institute of Technology, 2-12-1-S8-36 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Akira Hirao
- Department of Organic, Polymeric
Materials, Tokyo Institute of Technology, 2-12-1-S8-36 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
- Institute of Polymer Science,
Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Masa-aki Kakimoto
- Department of Organic, Polymeric
Materials, Tokyo Institute of Technology, 2-12-1-S8-36 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Teruaki Hayakawa
- Department of Organic, Polymeric
Materials, Tokyo Institute of Technology, 2-12-1-S8-36 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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27
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Abd-El-Aziz AS, Strohm EA. Transition metal-containing macromolecules: En route to new functional materials. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.08.024] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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28
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Electropolymerization and Impedance Spectroscopic Characterization of Thiophene Derivatives with η6-aryl-η5-cyclopentadienyliron hexaflourophosphates. J Inorg Organomet Polym Mater 2012. [DOI: 10.1007/s10904-012-9756-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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Zhang J, Ren L, Hardy CG, Tang C. Cobaltocenium-Containing Methacrylate Homopolymers, Block Copolymers, and Heterobimetallic Polymers via RAFT Polymerization. Macromolecules 2012. [DOI: 10.1021/ma3012784] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiuyang Zhang
- Department of Chemistry
and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia,
South Carolina 29208, United States
| | - Lixia Ren
- Department of Chemistry
and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia,
South Carolina 29208, United States
| | - Christopher G. Hardy
- Department of Chemistry
and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia,
South Carolina 29208, United States
| | - Chuanbing Tang
- Department of Chemistry
and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia,
South Carolina 29208, United States
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30
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Dahrouch M, Diaz E, Gatica N, Moreno Y, Chavez I, Manriquez JM, Rivière P, Rivière-Baudet M, Gornitzka H, Castel A. Organogermanium polymers prepared from s-indacene and carbodiimide compounds. Appl Organomet Chem 2012. [DOI: 10.1002/aoc.2867] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mohamed Dahrouch
- Departamento de Química Orgánica, Facultad de Ciencias Químicas; Universidad de Concepción; Casilla 160-C; Concepción; Chile
| | - Enzo Diaz
- Departamento de Química Orgánica, Facultad de Ciencias Químicas; Universidad de Concepción; Casilla 160-C; Concepción; Chile
| | - Nicolas Gatica
- Departamento de Polímeros, Facultad de Ciencias Químicas; Universidad de Concepción; Casilla 160-C; Concepción; Chile
| | - Yanko Moreno
- Departamento de Química Inorgánica, Facultad de Ciencias Químicas; Universidad de Concepción; Casilla 160-C; Concepción; Chile
| | - Ivonne Chavez
- Facultad de Química; Pontificia Universidad Católica de Chile; casilla 306, correo 22; Santiago de Chile; Chile
| | - Juan Manuel Manriquez
- Facultad de Química; Pontificia Universidad Católica de Chile; casilla 306, correo 22; Santiago de Chile; Chile
| | - Pierre Rivière
- Laboratoire d'Hétérochimie Fondamentale et Appliquée, UMR-CNRS 5069; Université Paul Sabatier; 31062; Toulouse; France
| | - Monique Rivière-Baudet
- Laboratoire d'Hétérochimie Fondamentale et Appliquée, UMR-CNRS 5069; Université Paul Sabatier; 31062; Toulouse; France
| | - Heinz Gornitzka
- CNRS, Laboratoire de Chimie de Coordination; and Université de Toulouse, UPS, INP, LCC; F-31077; Toulouse; France
| | - Annie Castel
- Laboratoire d'Hétérochimie Fondamentale et Appliquée, UMR-CNRS 5069; Université Paul Sabatier; 31062; Toulouse; France
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31
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Hussein MA, Asiri AM. Organometallic Ferrocene- and Phosphorus-Containing Polymers: Synthesis and Characterization. Des Monomers Polym 2012. [DOI: 10.1163/156855511x615650] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Mahmoud A. Hussein
- a Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, Saudi Arabia, Polymer Chemistry Laboratory 122, Chemistry Department, Faculty of Science, Assiut University, P.O. Box 71516, Assiut, Egypt;,
| | - Abdullah M. Asiri
- b Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, Saudi Arabia, The Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah, Saudi Arabia
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32
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Li JH, Wang L, Yu HJ, Tan QH, Deng LB, Huo J. Progress in the controllable synthesis of novel ferrocene-based polymers and their applications. Des Monomers Polym 2012. [DOI: 10.1163/156855507780949191] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Jian-Hua Li
- a State Key Laboratory of Polymer Reaction Engineering, College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Li Wang
- b State Key Laboratory of Polymer Reaction Engineering, College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Hao-Jie Yu
- c State Key Laboratory of Polymer Reaction Engineering, College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qiao-Hua Tan
- d State Key Laboratory of Polymer Reaction Engineering, College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Li-Bo Deng
- e State Key Laboratory of Polymer Reaction Engineering, College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jia Huo
- f State Key Laboratory of Polymer Reaction Engineering, College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, China
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33
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Kubo K, Kawanaka T, Tomioka M, Mizuta T. Synthesis and Crystal Structures of P-Iron-Substituted Phosphinoborane Monomers. Organometallics 2012. [DOI: 10.1021/om201287s] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kazuyuki Kubo
- Department of Chemistry, Graduate
School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-Hiroshima,
Hiroshima 739-8526, Japan
| | - Tomohiro Kawanaka
- Department of Chemistry, Graduate
School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-Hiroshima,
Hiroshima 739-8526, Japan
| | - Masao Tomioka
- Department of Chemistry, Graduate
School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-Hiroshima,
Hiroshima 739-8526, Japan
| | - Tsutomu Mizuta
- Department of Chemistry, Graduate
School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-Hiroshima,
Hiroshima 739-8526, Japan
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34
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Iron Oxide Arrays Prepared from Ferrocene- and Silsesquioxane-Containing Block Copolymers. INT J POLYM SCI 2012. [DOI: 10.1155/2012/692604] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Arrays of iron oxides as precursors of iron clusters were prepared by oxygen plasma treatment of block copolymer microphase-separated nanostructures in thin films. Block copolymers composed of ferrocene-containing and silsesquioxane-containing polymethacrylate (PMAPOSS-b-PMAHFC) were successfully prepared, with different molecular weights and compositions and narrow molecular weight distributions, by living anionic polymerization. The formed microphase-separated nanostructures in the bulk were characterized by wide- and small-angle X-ray scattering (WAXS and SAXS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Thin films were prepared from a solution of PMAPOSS-b-PMAHFC in tetrahydrofuran by spin coating onto silicon wafers. Fingerprint-type line nanostructures were formed in the PMAPOSS-b-PMAHFCs thin films after solvent annealing with carbon disulfide. Oxygen plasma treatment provided the final line arrays of iron oxides based on the formed nanostructural patterns.
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35
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Abd-El-Aziz A, Dalgakiran S. Metal-Containing Macromolecules. POLYMER SCIENCE: A COMPREHENSIVE REFERENCE 2012:637-688. [DOI: 10.1016/b978-0-444-53349-4.00155-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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36
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Jim CKW, Qin A, Mahtab F, Lam JWY, Tang BZ. Ferrocene-Functionalized Disubstituted Polyacetylenes with High Light Refractivity: Synthesis through Polymer Reaction by Using Click Chemistry and Application as Precursors to Magnetic Nanoparticles. Chem Asian J 2011; 6:2753-61. [DOI: 10.1002/asia.201100286] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Indexed: 12/24/2022]
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37
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Synthesis and low-temperature dehydrating imidation polymerization of 1,4-dihydro-1,4-diarsininetetracarboxylic acid dianhydride. Polym J 2011. [DOI: 10.1038/pj.2010.148] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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38
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Jäkle F. Advances in the Synthesis of Organoborane Polymers for Optical, Electronic, and Sensory Applications. Chem Rev 2010; 110:3985-4022. [DOI: 10.1021/cr100026f] [Citation(s) in RCA: 953] [Impact Index Per Article: 68.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Frieder Jäkle
- Department of Chemistry, Rutgers University Newark, Newark, New Jersey 07102
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39
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Smith AP, Fraser CL. Polymeric Platinum(II) Bipyridine Dithiolate Complexes: Exploring the Influence of Macromolecular Outer Spheres on Solvatochromism with UV-Vis Spectroscopy. MACROMOL CHEM PHYS 2010. [DOI: 10.1002/macp.200900698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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40
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Abd-El-Aziz AS, Shipman PO, Boden BN, McNeil WS. Synthetic methodologies and properties of organometallic and coordination macromolecules. Prog Polym Sci 2010. [DOI: 10.1016/j.progpolymsci.2010.01.004] [Citation(s) in RCA: 132] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Kim JS, Kong YK. Platinum/Nickel Catalyzed Selective Hydrosilylation of Alkynes and Alkenes with 1,1'-Bis(dimethylhydrosilyl) Ferrocene. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2010. [DOI: 10.5012/jkcs.2010.54.01.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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42
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Shi J, Jim CJW, Mahtab F, Liu J, Lam JWY, Sung HHY, Williams ID, Dong Y, Tang BZ. Ferrocene-Functionalized Hyperbranched Polyphenylenes: Synthesis, Redox Activity, Light Refraction, Transition-Metal Complexation, and Precursors to Magnetic Ceramics. Macromolecules 2009. [DOI: 10.1021/ma9012658] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Jianbing Shi
- Department of Chemistry, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
- HKUST Fok Ying Tung Research Institute, Nansha, Guangzhou, China
| | - Cathy J. W. Jim
- Department of Chemistry, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
- HKUST Fok Ying Tung Research Institute, Nansha, Guangzhou, China
| | - Faisal Mahtab
- Department of Chemistry, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
- HKUST Fok Ying Tung Research Institute, Nansha, Guangzhou, China
| | - Jianzhao Liu
- Department of Chemistry, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
- HKUST Fok Ying Tung Research Institute, Nansha, Guangzhou, China
| | - Jacky W. Y. Lam
- Department of Chemistry, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
- HKUST Fok Ying Tung Research Institute, Nansha, Guangzhou, China
| | - Herman H. Y. Sung
- Department of Chemistry, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
| | - Ian D. Williams
- Department of Chemistry, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
| | - Yuping Dong
- College of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Ben Zhong Tang
- Department of Chemistry, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
- HKUST Fok Ying Tung Research Institute, Nansha, Guangzhou, China
- Department of Polymer Science and Engineering, Key Laboratory of Macromolecular Synthesis and Functionalization of the Ministry of Education of China, Zhejiang University, Hangzhou 310027, China
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43
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Cazacu M, Racles C, Airinei A, Alexandru M, Vlad A. Association phenomena of the ferrocenylsiloxane polyamide in solution. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23630] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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44
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Blackstone V, Lough AJ, Murray M, Manners I. Probing the mechanism of the PCl5-initiated living cationic polymerization of the phosphoranimine Cl3P=NSiMe3 using model compound chemistry. J Am Chem Soc 2009; 131:3658-67. [PMID: 19226179 DOI: 10.1021/ja808517d] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
New insight into the mechanism of the ambient temperature PCl5-initiated living cationic chain growth polycondensation of the N-silylphosphoranimine Cl3P=NSiMe3 (1) to give poly(dichlorophosphazene), [N=PCl2]n, has been provided by studies of model compound chemistry. Investigations of the reactivity of Cl- salts of the proposed cationic intermediates [Cl3P=N=PCl3]+ ([2]+) and [Cl3P=N-PCl2=N=PCl3]+ ([6]+) toward Ph3P=NSiMe3 (3a) provided evidence that under the usual polymerization conditions that involve a high monomer to initiator ratio, propagation occurs at both chain ends. However, analogous studies of near stoichiometric processes suggested that propagation is faster at one chain end, particularly when the chains are short. In addition, experiments involving [Ph3P=N=PPh3][PCl6] ([9][PCl6]) and the N-silylphosphoranimines R3P=NSiMe3 3a (R = Ph) and 3b (R = p-CF3C6H4), showed that the [PCl6]- anion, which is formed in the early stages of the polymerization and has hitherto been assumed to be an innocent spectator counteranion, is actually reactive under the reaction conditions and can initiate oligomerization and polymerization. Finally, the absence of reactions between phosphoranimines 3b or 1 with the Cl- salts of the cations [Ph3P=N-PCl2=N=PPh3]+ ([10a]+), [Ph3P=N-(PCl2=N)2=PPh3]+ ([5]+), and [Ph3P=N-(PCl2=N)3=PPh3]+ ([8]+) with P-Cl bonds located internally but not at the chain ends have shown that chain branching reactions are unlikely to be significant during the polymerization. These results identify key factors that complicate the living PCl5-initiated chain growth polycondensation of 1 and potentially lead to a loss of control over molecular weight and broaden the molecular weight distributions, but also indicate that the polymer formed is essentially linear rather than branched.
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45
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Wurm F, Villanueva FJL, Frey H. Ferrocenyl-functionalized long chain branched polydienes. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23334] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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46
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Xu J, Ma Y, Hu W, Rehahn M, Reiter G. Cloning polymer single crystals through self-seeding. NATURE MATERIALS 2009; 8:348-353. [PMID: 19287393 DOI: 10.1038/nmat2405] [Citation(s) in RCA: 174] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2008] [Accepted: 02/12/2009] [Indexed: 05/27/2023]
Abstract
In general, when a crystal is molten, all molecules forget about their mutual correlations and long-range order is lost. Thus, a regrown crystal does not inherit any features from an initially present crystal. Such is true for materials exhibiting a well-defined melting point. However, polymer crystallites have a wide range of melting temperatures, enabling paradoxical phenomena such as the coexistence of melting and crystallization. Here, we report a self-seeding technique that enables the generation of arrays of orientation-correlated polymer crystals of uniform size and shape ('clones') with their orientation inherited from an initial single crystal. Moreover, the number density and locations of these cloned crystals can to some extent be predetermined through the thermal history of the starting crystal. We attribute this unique behaviour of polymers to the coexistence of variable fold lengths in metastable crystalline lamellae, typical for ordering of complex chain-like molecules.
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Affiliation(s)
- Jianjun Xu
- Ernst Berl-Institut für Technische und Makromolekulare Chemie, TU Darmstadt, Petersenstrasse 22, D-64287 Darmstadt, Germany.
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47
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Polymer-metal complexes of phenolic resin with Ln (III): thermal, catalytic and antimicrobial aspects. JOURNAL OF POLYMER RESEARCH 2009. [DOI: 10.1007/s10965-009-9282-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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48
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Blackstone V, Presa Soto A, Manners I. Polymeric materials based on main group elements: the recent development of ambient temperature and controlled routes to polyphosphazenes. Dalton Trans 2008:4363-71. [PMID: 18698437 DOI: 10.1039/b719361k] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This Perspective discusses the development of new routes to polyphosphazenes, [R(2)P[double bond, length as m-dash]N](n), that occur at ambient temperature and, in some cases, allow molecular weight control and access to narrow molecular weight distributions and block copolymers. For example, the room temperature silyl-carborane initiated ring-opening polymerisation of (NPCl(2))(3) is described together with chain growth condensation polymerisations of phosphoranimines Cl(3)P[double bond, length as m-dash]NSiMe(3) and BrMePhP[double bond, length as m-dash]NSiMe(3). Recent works on donor-stabilised cationic phosphoranimines are also discussed.
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49
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Naka K. Synthesis of Polymers Containing Group 15 Elements via Bismetallation of Acetylenic Compounds. Polym J 2008. [DOI: 10.1295/polymj.pj2008077] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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50
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Ahamad T, Kumar V, Parveen S, Nishat N. Synthesis, characterization and anti-microbial activity of poly(ethylene oxamide- N,N ′-disuccinate) and its polymer metal complexes. J COORD CHEM 2008. [DOI: 10.1080/00958970701579290] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- T. Ahamad
- a Department of Chemistry , Materials Research Lab , Jamia Millia Islamia, New Delhi, 110025, India
| | - V. Kumar
- a Department of Chemistry , Materials Research Lab , Jamia Millia Islamia, New Delhi, 110025, India
| | - S. Parveen
- a Department of Chemistry , Materials Research Lab , Jamia Millia Islamia, New Delhi, 110025, India
| | - N. Nishat
- a Department of Chemistry , Materials Research Lab , Jamia Millia Islamia, New Delhi, 110025, India
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