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Kuciński K, Stachowiak H, Hreczycho G. Silylation of Alcohols, Phenols, and Silanols with Alkynylsilanes - an Efficient Route to Silyl Ethers and Unsymmetrical Siloxanes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000573] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Krzysztof Kuciński
- Faculty of Chemistry; Adam Mickiewicz University in Poznań; Ul. Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
| | - Hanna Stachowiak
- Faculty of Chemistry; Adam Mickiewicz University in Poznań; Ul. Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
| | - Grzegorz Hreczycho
- Faculty of Chemistry; Adam Mickiewicz University in Poznań; Ul. Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
- Center for Advanced Technologies; Adam Mickiewicz University; Ul. Uniwersytetu Poznańskiego 10 61-614 Poznań Poland
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Smet S, Verlooy P, Pulinthanathu S, Kirschhock CEA, Taulelle F, Breynaert E, Martens JA. A Porous POSiSil Suited for Pressure‐Driven Reversible Confinement of Solutions: PSS‐2. Chemistry 2019; 25:12957-12965. [DOI: 10.1002/chem.201901913] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 07/22/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Sam Smet
- Centre for Surface Chemistry and Catalysis - Characterization and Application TeamKULeuven Celestijnenlaan 200f-2461 3001 Leuven Belgium
| | - Pieter Verlooy
- Centre for Surface Chemistry and Catalysis - Characterization and Application TeamKULeuven Celestijnenlaan 200f-2461 3001 Leuven Belgium
| | - Sreeprasanth Pulinthanathu
- Centre for Surface Chemistry and Catalysis - Characterization and Application TeamKULeuven Celestijnenlaan 200f-2461 3001 Leuven Belgium
| | - Christine E. A. Kirschhock
- Centre for Surface Chemistry and Catalysis - Characterization and Application TeamKULeuven Celestijnenlaan 200f-2461 3001 Leuven Belgium
| | - Francis Taulelle
- Centre for Surface Chemistry and Catalysis - Characterization and Application TeamKULeuven Celestijnenlaan 200f-2461 3001 Leuven Belgium
| | - Eric Breynaert
- Centre for Surface Chemistry and Catalysis - Characterization and Application TeamKULeuven Celestijnenlaan 200f-2461 3001 Leuven Belgium
| | - Johan A. Martens
- Centre for Surface Chemistry and Catalysis - Characterization and Application TeamKULeuven Celestijnenlaan 200f-2461 3001 Leuven Belgium
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Brook MA. New Control Over Silicone Synthesis using SiH Chemistry: The Piers-Rubinsztajn Reaction. Chemistry 2018; 24:8458-8469. [PMID: 29468751 DOI: 10.1002/chem.201800123] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Indexed: 11/11/2022]
Abstract
There is a strong imperative to synthesize polymers with highly controlled structures and narrow property ranges. Silicone polymers do not lend themselves to this paradigm because acids or bases lead to siloxane equilibration and loss of structure. By contrast, elegant levels of control are possible when using the Piers-Rubinsztajn reaction and analogues, in which the hydrophobic, strong Lewis acid B(C6 F5 )3 activates SiH groups, permitting the synthesis of precise siloxanes under mild conditions in high yield; siloxane decomposition processes are slow under these conditions. A broad range of oxygen nucleophiles including alkoxysilanes, silanols, phenols, and aryl alkyl ethers participate in the reaction to create elastomers, foams and green composites, for example, derived from lignin. In addition, the process permits the synthesis of monofunctional dendrons that can be assembled into larger entities including highly branched silicones and dendrimers either using the Piers-Rubinsztajn process alone, or in combination with hydrosilylation or other orthogonal reactions.
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Affiliation(s)
- Michael A Brook
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main St. W., Hamilton, ON, L8S 4M1, Canada
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Smet S, Vandenbrande S, Verlooy P, Kerkhofs S, Breynaert E, Kirschhock CEA, Martineau-Corcos C, Taulelle F, Van Speybroeck V, Martens JA. Alternating Copolymer of Double Four Ring Silicate and Dimethyl Silicone Monomer-PSS-1. Chemistry 2017; 23:11286-11293. [PMID: 28590596 DOI: 10.1002/chem.201701237] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Indexed: 11/10/2022]
Abstract
A new copolymer consisting of double four ring (D4R) silicate units linked by dimethylsilicone monomer referred to as polyoligosiloxysilicone number one (PSS-1) was synthesized. The D4R building unit is provided by hexamethyleneimine cyclosilicate hydrate crystals, which were dehydrated and reacted with dichlorodimethylsilane. The local structure of D4R silicate units and dimethyl silicone monomers was revealed by multidimensional solid-state NMR, FTIR and modeling. On average, D4R silicate units have 6.8 silicone linkages. Evidence for preferential unidirectional growth and chain ordering within the PSS-1 copolymer was provided by STEM and TEM. The structure of PSS-1 copolymer consists of twisted columns of D4R silicate units with or without cross-linking. Both models are consistent with the spectroscopic, microscopic and physical properties. PSS-1 chains are predicted to be mechanically strong compared to silicones such as PDMS, yet more flexible than rigid silica materials such as zeolites.
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Affiliation(s)
- Sam Smet
- Centre for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan 200f-2461, 3001, Leuven, Belgium
| | - Steven Vandenbrande
- Centre for Molecular Modeling, Ghent University, Technologiepark 903, 9052, Zwijnaarde, Belgium
| | - Pieter Verlooy
- Centre for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan 200f-2461, 3001, Leuven, Belgium
| | - Stef Kerkhofs
- Centre for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan 200f-2461, 3001, Leuven, Belgium
| | - Eric Breynaert
- Centre for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan 200f-2461, 3001, Leuven, Belgium
| | - Christine E A Kirschhock
- Centre for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan 200f-2461, 3001, Leuven, Belgium
| | | | - Francis Taulelle
- Centre for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan 200f-2461, 3001, Leuven, Belgium.,Institut Lavoisier de Versailles, University of Versailles, Versailles, France
| | | | - Johan A Martens
- Centre for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan 200f-2461, 3001, Leuven, Belgium
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Adachi K, Tokushige M, Omata K, Yamazaki S, Iwadate Y. Kinetics of Coloration in Photochromic Tungsten(VI) Oxide/Silicon Oxycarbide/Silica Hybrid Xerogel: Insight into Cation Self-diffusion Mechanisms. ACS APPLIED MATERIALS & INTERFACES 2016; 8:14019-14028. [PMID: 27159661 DOI: 10.1021/acsami.6b04115] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Silicon oxycarbide/silica composites with well-dispersed tungsten(VI) oxide (WO3) nanoparticles were obtained as transparent hybrid xerogels via an acid-catalyzed sol-gel process (hydrolysis/condensation polymerization) of 3-(triethoxysilyl)propyl methacrylate (TESPMA) and tetraethoxysilane (TEOS). The self-diffusion mechanism of alkali-metal cations and the kinetics of the photochromic coloration process in the WO3/TESPMA/TEOS hybrid xerogel systems have been systematically investigated. Under continuous UV illumination, a gradual color change (colorless → blue) corresponding to the reduction of W(6+) into W(5+) states in WO3 nanoparticles can be confirmed from the WO3/TESPMA/TEOS hybrid xerogels containing alkali-metal sulfates, although no coloration of the hybrid xerogel without alkali-metal sulfate was observed. The coloration behavior depended exclusively on a variety of alkali-metal cations present in the hybrid xerogel system. Furthermore, a detailed analysis of the self-diffusion mechanism confirmed that the alkali-metal cations electrostatically interact with a layer of unreacted silanol groups on the TESPMA/TEOS matrix surface, and subsequently pass through the interconnected pore network of the hybrid xerogel. More interestingly, in the context of an Arrhenius analysis, we found a good coincidence between the activation energies for alkali-metal cation self-diffusion and UV-induced coloration in the WO3/TESPMA/TEOS hybrid xerogel system containing the corresponding alkali-metal sulfate. It is experimentally obvious that the photochromic properties are dominated by the diffusion process of alkali-metal cations in the WO3/TESPMA/TEOS hybrid xerogel system. Such hybrid materials with cation-controlled photochromic properties will show promising prospects in applications demanding energy-efficient "smart windows" and "smart glasses".
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Affiliation(s)
- Kenta Adachi
- Department of Chemistry, Graduate School of Sciences & Technology for Innovation, ‡Optics and Energy Research Center, §Department of Environmental Science & Engineering, Graduate School of Science & Engineering, ∥Department of Biology and Chemistry, Faculty of Science, and ⊥Department of Biology, Graduate School of Sciences & Technology for Innovation, Yamaguchi University , Yamaguchi 753-8512, Japan
| | - Masataka Tokushige
- Department of Chemistry, Graduate School of Sciences & Technology for Innovation, ‡Optics and Energy Research Center, §Department of Environmental Science & Engineering, Graduate School of Science & Engineering, ∥Department of Biology and Chemistry, Faculty of Science, and ⊥Department of Biology, Graduate School of Sciences & Technology for Innovation, Yamaguchi University , Yamaguchi 753-8512, Japan
| | - Kaoru Omata
- Department of Chemistry, Graduate School of Sciences & Technology for Innovation, ‡Optics and Energy Research Center, §Department of Environmental Science & Engineering, Graduate School of Science & Engineering, ∥Department of Biology and Chemistry, Faculty of Science, and ⊥Department of Biology, Graduate School of Sciences & Technology for Innovation, Yamaguchi University , Yamaguchi 753-8512, Japan
| | - Suzuko Yamazaki
- Department of Chemistry, Graduate School of Sciences & Technology for Innovation, ‡Optics and Energy Research Center, §Department of Environmental Science & Engineering, Graduate School of Science & Engineering, ∥Department of Biology and Chemistry, Faculty of Science, and ⊥Department of Biology, Graduate School of Sciences & Technology for Innovation, Yamaguchi University , Yamaguchi 753-8512, Japan
| | - Yoshiaki Iwadate
- Department of Chemistry, Graduate School of Sciences & Technology for Innovation, ‡Optics and Energy Research Center, §Department of Environmental Science & Engineering, Graduate School of Science & Engineering, ∥Department of Biology and Chemistry, Faculty of Science, and ⊥Department of Biology, Graduate School of Sciences & Technology for Innovation, Yamaguchi University , Yamaguchi 753-8512, Japan
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Irie Y, Naka K. Single component transparent free-standing films based on polyhedral octasilicate-core dendrimers bearing carbazole terminal groups and their emission properties. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27811] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yasuyuki Irie
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology; Goshokaido-Cho, Matsugasaki Sakyo-Ku Kyoto 606-8585 Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology; Goshokaido-Cho, Matsugasaki Sakyo-Ku Kyoto 606-8585 Japan
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Irie Y, Naka K. Syntheses of biphenyl-terminated polyhedral oligomeric octasilicate-core dendrimers and their single-component optical transparent free-standing thermoplastic films. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27583] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yasuyuki Irie
- Department of Chemistry and Materials Technology; Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-Cho, Matsugasaki; Sakyo-Ku Kyoto 606-8585 Japan
| | - Kensuke Naka
- Department of Chemistry and Materials Technology; Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-Cho, Matsugasaki; Sakyo-Ku Kyoto 606-8585 Japan
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9
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Lee J, Han AR, Lee SM, Yoo D, Oh JH, Yang C. Siloxane-Based Hybrid Semiconducting Polymers Prepared by Fluoride-Mediated Suzuki Polymerization. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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10
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Lee J, Han AR, Lee SM, Yoo D, Oh JH, Yang C. Siloxane-Based Hybrid Semiconducting Polymers Prepared by Fluoride-Mediated Suzuki Polymerization. Angew Chem Int Ed Engl 2015; 54:4657-60. [DOI: 10.1002/anie.201411557] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 01/12/2015] [Indexed: 11/06/2022]
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Grande JB, Urlich T, Dickie T, Brook MA. Silicone dendrons and dendrimers from orthogonal SiH coupling reactions. Polym Chem 2014. [DOI: 10.1039/c4py00680a] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Iterative assembly of highly branched silicone dendrons and dendrimers, alternatively using Piers–Rubinsztajn and Pt-catalyzed hydrosilylation reactions, was achieved in high yield to give materials of up to 13 770 molecular weight by combining divergent and convergent approaches.
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Affiliation(s)
- John B. Grande
- Department of Chemistry and Chemical Biology
- McMaster University
- Hamilton, Canada L8S 4M1
| | - Tomas Urlich
- Department of Chemistry and Chemical Biology
- McMaster University
- Hamilton, Canada L8S 4M1
| | - Tara Dickie
- Department of Chemistry and Chemical Biology
- McMaster University
- Hamilton, Canada L8S 4M1
| | - Michael A. Brook
- Department of Chemistry and Chemical Biology
- McMaster University
- Hamilton, Canada L8S 4M1
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Ishtaiwi Z, Rüffer T, Hildebrandt A, Awwadi FF, Hahn H, Abylaikhan A, Taher D, Siegert U, Walfort B, Lang H. Allyl‐End‐Grafted Carbosilane Dendrimers Based on 1,4‐Phenylene Units: Synthesis, Reactivity, Structure, and Bonding Motifs. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201201428] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zakariyya Ishtaiwi
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Institute of Chemistry, Chemnitz University of Technology, Strasse der Nationen 62, 09111 Chemnitz, Germany, Fax: +49‐371‐531‐21219, http://https://www.tu‐chemnitz.de/chemie/anorg/
| | - Tobias Rüffer
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Institute of Chemistry, Chemnitz University of Technology, Strasse der Nationen 62, 09111 Chemnitz, Germany, Fax: +49‐371‐531‐21219, http://https://www.tu‐chemnitz.de/chemie/anorg/
| | - Alexander Hildebrandt
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Institute of Chemistry, Chemnitz University of Technology, Strasse der Nationen 62, 09111 Chemnitz, Germany, Fax: +49‐371‐531‐21219, http://https://www.tu‐chemnitz.de/chemie/anorg/
| | - Firas F. Awwadi
- Department of Chemistry, The University of Jordan, Amman 11942, Jordan
| | - Harald Hahn
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Institute of Chemistry, Chemnitz University of Technology, Strasse der Nationen 62, 09111 Chemnitz, Germany, Fax: +49‐371‐531‐21219, http://https://www.tu‐chemnitz.de/chemie/anorg/
| | - Akerke Abylaikhan
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Institute of Chemistry, Chemnitz University of Technology, Strasse der Nationen 62, 09111 Chemnitz, Germany, Fax: +49‐371‐531‐21219, http://https://www.tu‐chemnitz.de/chemie/anorg/
| | - Deeb Taher
- Department of Chemistry, The University of Jordan, Amman 11942, Jordan
| | - Uwe Siegert
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Institute of Chemistry, Chemnitz University of Technology, Strasse der Nationen 62, 09111 Chemnitz, Germany, Fax: +49‐371‐531‐21219, http://https://www.tu‐chemnitz.de/chemie/anorg/
| | - Bernhard Walfort
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Institute of Chemistry, Chemnitz University of Technology, Strasse der Nationen 62, 09111 Chemnitz, Germany, Fax: +49‐371‐531‐21219, http://https://www.tu‐chemnitz.de/chemie/anorg/
| | - Heinrich Lang
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Institute of Chemistry, Chemnitz University of Technology, Strasse der Nationen 62, 09111 Chemnitz, Germany, Fax: +49‐371‐531‐21219, http://https://www.tu‐chemnitz.de/chemie/anorg/
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Kawahara K, Tachibana H, Hagiwara Y, Kuroda K. A spherosilicate oligomer with eight stable silanol groups as a building block of hybrid materials. NEW J CHEM 2012. [DOI: 10.1039/c2nj20953e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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