1
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Brook MA. Functional silicone oils and elastomers: new routes lead to new properties. Chem Commun (Camb) 2023; 59:12813-12829. [PMID: 37818662 DOI: 10.1039/d3cc03531j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
Silicones are mostly utilized for their stability to a range of vigorous environmental conditions, which arises, in part, from the lack of functionality in finished products. The commonly used functional groups in silicones, e.g., SiH, SiCHCH2, are mostly consumed during final product synthesis. Organic functional groups may also be found in silicone products, including organic alcohols, amines, polyethers, etc., that deliver functionality not achieved by traditional organic polymers (e.g., aminosilicones, softening of fabrics; silicone polyethers, superwetting agricultural adjuvants). However, relatively little organic chemistry is practiced in commercial silicones, limiting the types of desirable functionality that can be attained. We report the utilization of a series of simple-to-practice organic reactions that take place efficiently on silicone oils to allow the preparation of a wide variety of functional silicones. The silicone oil starting materials typically act as both solvent and educt to allow many of the newer reactions, such as Click processes, to be used to tune the properties of both silicone oil and elastomer products. The review considers the concept of 'functionality' to include: the reactive groups used to enable synthesis of more complicated structures; and separately, the functional properties of the product silicones. One such property that is considered throughout is degradability at end-of-life, which is related to the sustainability of silicones.
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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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2
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Tamim K, Gale CB, Silverthorne KEC, Lu G, Iao CH, Brook MA. Antioxidant Silicone Elastomers without Covalent Cross-Links. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2023; 11:7062-7071. [PMID: 37192891 PMCID: PMC10171216 DOI: 10.1021/acssuschemeng.3c00103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 04/11/2023] [Indexed: 05/18/2023]
Abstract
Improved sustainability is associated with elastomers that readily breakdown in the environment at end of life and, as importantly, that can be reprocessed/reused long before end of life arises. We report the preparation of silicone elastomers that possess both thermoplasticity-reprocessability-and antioxidant activity. A combination of ionic and H-bonding links natural phenolic antioxidants, including catechol, pyrogallol, tannic acid, and others, to telechelic aminoalkylsilicones. The mechanical properties of the elastomers, including their processability, are intimately linked to the ratio of [ArOH]/[H2NR] that was found to be optimal when the ratio exceeded 1:1.
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Affiliation(s)
- Khaled Tamim
- Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
| | - Cody B. Gale
- Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
| | - Kaitlyn E. C. Silverthorne
- Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
| | - Guanhua Lu
- Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
| | - Cheok Hang Iao
- Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
| | - Michael A. Brook
- Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
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3
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Azadi Namin P, Booth P, Treviño Silva J, Voigt LJ, Zelisko PM. Transparent and Thermoplastic Silicone Materials Based on Room-Temperature Diels–Alder Reactions. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c00890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- Paria Azadi Namin
- Department of Chemistry and Centre for Biotechnology, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario Canada L2S 3A1
| | - Phoebe Booth
- Department of Chemistry and Centre for Biotechnology, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario Canada L2S 3A1
- School of Chemistry, Cardiff University, Cardiff CF10 3AT, United Kingdom
| | - Julio Treviño Silva
- Department of Chemistry and Centre for Biotechnology, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario Canada L2S 3A1
| | - Laura J. Voigt
- Department of Chemistry and Centre for Biotechnology, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario Canada L2S 3A1
| | - Paul M. Zelisko
- Department of Chemistry and Centre for Biotechnology, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario Canada L2S 3A1
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4
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Oka M, Takagi H, Orie A, Honda S. Realizing Vat-Photocycloaddition 3D Printing with Recyclable Synthetic Photorheological Silicone Fluids. Macromol Rapid Commun 2022; 43:e2200407. [PMID: 35997136 DOI: 10.1002/marc.202200407] [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: 04/29/2022] [Revised: 08/04/2022] [Indexed: 11/06/2022]
Abstract
Synthetic silicone rubbers are finding a broad spectrum of applications, yet there has been a demand for developing greener silicone rubbers with processability, recyclability, and reversible tunability in their mechanical properties. Here, a recyclable photorheological silicone fluid (RPSF) is developed, which realizes completely reversible wavelength-selective liquid-rubber conversion upon photoirradiation, relying on the reversible photocycloaddition of coumarin upon alternating irradiation of light with wavelengths of 365 nm (UV365 ) and 254 nm (UV254 ). Rheological studies demonstrate that the storage modulus of the developed RPSF increases by a factor of more than 100,000 upon UV365 irradiation to reach 20-50 kPa, while it decreases to ca. 0.01 kPa upon UV254 irradiation. The reversibility of the photocycloaddition of coumarin enables the application of RPSF as a photodismantlable adhesive. Furthermore, unprecedented vat-photocycloaddition 3D printing of silicone rubber is realized by taking advantage of the excellent photocurability, i.e., dramatic increase in viscoelasticity upon UV365 irradiation. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Minami Oka
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo, 153-8902, Japan
| | - Hideaki Takagi
- Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan
| | - Akihiro Orie
- Studio ProtoMateria, Nishi-Shinjuku Mizuma Bldg. 6F, 3-3-13, Nishi-Shinjuku, Shinjuku, Tokyo, 160-0023, Japan
| | - Satoshi Honda
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo, 153-8902, Japan
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5
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Wong JHM, Tan RPT, Chang JJ, Ow V, Yew PYM, Chee PL, Kai D, Loh XJ, Xue K. Dynamic grafting of carboxylates onto poly(vinyl alcohol) polymers for supramolecularly-crosslinked hydrogel formation. Chem Asian J 2022; 17:e202200628. [PMID: 35977910 DOI: 10.1002/asia.202200628] [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: 06/14/2022] [Revised: 08/15/2022] [Indexed: 11/05/2022]
Abstract
Supramolecular hydrogels have attracted considerable interest due to their unique stimuli-responsive and self-healing properties. However, these hydrogel systems are usually achieved by covalent grafting of supramolecular units onto the polymer backbone, which in turn limits their reprocessability. Herein, we prepared a supramolecular hydrogel system by forming dynamic covalent crosslinks between 4-carboxyphenylboronic acid (CPBA) and polyvinyl alcohol (PVA). The system was then further crosslinked with either calcium ions or branched polyethylenimine (PEI) to generate hydrogels with distinctly different properties. Incorporation of calcium ions resulted in the formation of hydrogels with higher storage modulus of 7290 Pa but without self-healing properties. On the other hand, PEI-crosslinked hydrogel (PVA-CPBA-PEI) exhibited >2000% critical strain value, demonstrated high stability over 52 days and showed sustained antibacterial effect. A combination of supramolecular interactions and dynamic covalent crosslinks can be an alternate strategy to fabricate next generation hydrogel materials.
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Affiliation(s)
- Joey Hui Min Wong
- Institute of Materials Research and Engineering, Soft Materials, SINGAPORE
| | | | - Jun Jie Chang
- Institute of Materials Research and Engineering, Soft Materials, SINGAPORE
| | - Valerie Ow
- Institute of Materials Research and Engineering, Soft Materials, SINGAPORE
| | | | - Pei Lin Chee
- Institute of Materials Research and Engineering, Soft Materials, SINGAPORE
| | - Dan Kai
- Institute of Materials Research and Engineering, Strategic Research Initiative, SINGAPORE
| | - Xian Jun Loh
- Institute of Materials Research and Engineering, Soft Materials, SINGAPORE
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6
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Cazacu M, Dascalu M, Stiubianu GT, Bele A, Tugui C, Racles C. From passive to emerging smart silicones. REV CHEM ENG 2022. [DOI: 10.1515/revce-2021-0089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Amassing remarkable properties, silicones are practically indispensable in our everyday life. In most classic applications, they play a passive role in that they cover, seal, insulate, lubricate, water-proof, weather-proof etc. However, silicone science and engineering are highly innovative, seeking to develop new compounds and materials that meet market demands. Thus, the unusual properties of silicones, coupled with chemical group functionalization, has allowed silicones to gradually evolve from passive materials to active ones, meeting the concept of “smart materials”, which are able to respond to external stimuli. In such cases, the intrinsic properties of polysiloxanes are augmented by various chemical modifications aiming to attach reactive or functional groups, and/or by engineering through proper cross-linking pattern or loading with suitable fillers (ceramic, magnetic, highly dielectric or electrically conductive materials, biologically active, etc.), to add new capabilities and develop high value materials. The literature and own data reflecting the state-of-the art in the field of smart silicones, such as thermoplasticity, self-healing ability, surface activity, electromechanical activity and magnetostriction, thermo-, photo-, and piezoresponsivity are reviewed.
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Affiliation(s)
- Maria Cazacu
- Department of Inorganic Polymers , “Petru Poni” Institute of Macromolecular Chemistry , Aleea Gr. Ghica Voda 41A , 700487 Iasi , Romania
| | - Mihaela Dascalu
- Department of Inorganic Polymers , “Petru Poni” Institute of Macromolecular Chemistry , Aleea Gr. Ghica Voda 41A , 700487 Iasi , Romania
| | - George-Theodor Stiubianu
- Department of Inorganic Polymers , “Petru Poni” Institute of Macromolecular Chemistry , Aleea Gr. Ghica Voda 41A , 700487 Iasi , Romania
| | - Adrian Bele
- Department of Inorganic Polymers , “Petru Poni” Institute of Macromolecular Chemistry , Aleea Gr. Ghica Voda 41A , 700487 Iasi , Romania
| | - Codrin Tugui
- Department of Inorganic Polymers , “Petru Poni” Institute of Macromolecular Chemistry , Aleea Gr. Ghica Voda 41A , 700487 Iasi , Romania
| | - Carmen Racles
- Department of Inorganic Polymers , “Petru Poni” Institute of Macromolecular Chemistry , Aleea Gr. Ghica Voda 41A , 700487 Iasi , Romania
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7
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Nowacka M, Kowalewska A. Self-Healing Silsesquioxane-Based Materials. Polymers (Basel) 2022; 14:polym14091869. [PMID: 35567038 PMCID: PMC9099987 DOI: 10.3390/polym14091869] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/24/2022] [Accepted: 04/27/2022] [Indexed: 02/06/2023] Open
Abstract
This review is devoted to self-healing materials (SHM) containing polyhedral oligomeric silsesquioxanes (POSS) as building blocks. The synthetic approach can vary depending on the role POSS are expected to play in a given system. POSS (especially double-decker silsesquioxanes) can be grafted in side chains of a polymer backbone or used as segments of the main chain. Appropriate functionalization allows the formation of dynamic bonds with POSS molecules and makes them an active component of SHM, both as crosslinking agents and as factors that enhance the dynamics of macromolecules in the polymer matrix. The latter effect can be achieved by reversible release of bulky POSS cages or by the formation of separated inclusions in the polymer matrix through hydrophobic interactions and POSS aggregation. The unique properties of POSS-based self-healing systems make them interesting and versatile materials for various applications (e.g., repairable coatings, sealants, sensors, soft materials for tissue engineering, drug delivery, and wound healing).
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Kowalczyk S, Dębowski M, Iuliano A, Brzeski S, Plichta A. Synthesis of (Hyper)Branched Monohydroxyl Alkoxysilane Oligomers toward Silanized Urethane Prepolymers. Molecules 2022; 27:molecules27092790. [PMID: 35566135 PMCID: PMC9105832 DOI: 10.3390/molecules27092790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/20/2022] [Accepted: 04/25/2022] [Indexed: 12/10/2022] Open
Abstract
The aim of this work was the synthesis of (hyper)branched oligomers based on trialkoxysilane in various conditions and further application of them in order to modify the urethane prepolymers. Hydroxyl-terminated trialkoxysilane was used as a monomer for homo-condensation. It was obtained by reaction of 3-aminopropyl trialkoxysilane (APTES) with ethylene carbonate (EC). The reaction was based on the attack of amine at the carbonyl carbon atom followed by ring opening of the carbonate to give a urethane (carbamate) product. The next step was the condensation via substitution of ethoxy groups on silicon atom with the terminal hydroxyalkyl groups present in the primary product with the evolution of ethanol. Accordingly, the impact of temperature and type of catalyst on process efficiency was investigated. A quantitative analysis of reaction progress and products of the conversion of EC together with ethanol evolution was conducted by means of gas chromatography, which allowed us to determine the formation of monomeric product and, indirectly, of oligomeric products. It was found that at room temperature after 24 h, the majority of the monomeric product was isolated, whereas at elevated temperature in the presence of Ti-based catalyst, further condensation of the monomer into branched oligomers was preferred, and, moreover, the application of vacuum intensified that process. The obtained products were structurally characterized by 1H and 29Si NMR, MALDI-ToF and Gel Permeation Chromatography. Finally, two different alkoxysilane products, monomeric and oligomeric, were applied for modification of urethane prepolymer, forming silanized one (SPUR). The influence of the silanizing agent on the mechanical and thermal properties of the moisture-cured products was shown before and after additional conditioning in water.
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9
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Hou JT, Kwon N, Wang S, Wang B, He X, Yoon J, Shen J. Sulfur-based fluorescent probes for HOCl: Mechanisms, design, and applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214232] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Huang Y, Yan J, Wang D, Feng S, Zhou C. Construction of Self-Healing Disulfide-Linked Silicone Elastomers by Thiol Oxidation Coupling Reaction. Polymers (Basel) 2021; 13:3729. [PMID: 34771287 PMCID: PMC8587408 DOI: 10.3390/polym13213729] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/22/2021] [Accepted: 10/26/2021] [Indexed: 11/17/2022] Open
Abstract
Developing self-healing silicone elastomers are highly significant because of their promising applications. Herein, we present novel self-healing disulfide-linked silicone elastomers (SEs) based on thiol-terminated sulfur-containing heterochain polysiloxanes (P-SHs) and three thiol-containing crosslinkers, including pentaerythritol tetrakis(β-mercaptopropionate) (PETMP), octa(3-mercaptopropyl)silsesquioxane (POSS-SH), and poly[(mercaptopropyl)methylsiloxane] (PMMS), via the thiol oxidation coupling reactions. The construction of these SEs can rapidly proceed at room temperature. The effects of crosslinker species and amounts on the formability and mechanical properties were investigated. The silicone elastomers can be self-healed by heating at 150 °C for 2 h or under UV radiation for 30 min after cutting them into pieces and the self-healing efficiency is >70%. Moreover, they can be utilized as adhesives for bonding glass sheets, which can hold a 200 g weight. The bonding is reversible and can repeatedly proceed many times, indicating that these materials can promisingly be applied as reversible adhesives. These results indicate that a thiol oxidation coupling reaction is a simple and effective strategy for the construction of self-healing disulfide-linked elastomers. Under this strategy, more disulfide-linked organic elastomers with self-healing properties can be designed and constructed and their applications can be further explored.
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Affiliation(s)
- Yanhua Huang
- School of Materials Science and Engineering, Shandong University, Jinan 250022, China;
| | - Jianpan Yan
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong Key Laboratory of Advanced Organosilicon Materials and Technologies, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China; (J.Y.); (S.F.)
| | - Dengxu Wang
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong Key Laboratory of Advanced Organosilicon Materials and Technologies, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China; (J.Y.); (S.F.)
| | - Shengyu Feng
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong Key Laboratory of Advanced Organosilicon Materials and Technologies, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China; (J.Y.); (S.F.)
| | - Chuanjian Zhou
- School of Materials Science and Engineering, Shandong University, Jinan 250022, China;
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong Key Laboratory of Advanced Organosilicon Materials and Technologies, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China; (J.Y.); (S.F.)
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11
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Zhao P, Wang L, Xie L, Wang W, Wang L, Zhang C, Li L, Feng S. Mechanically Strong, Autonomous Self-Healing, and Fully Recyclable Silicone Coordination Elastomers with Unique Photoluminescent Properties. Macromol Rapid Commun 2021; 42:e2100519. [PMID: 34587305 DOI: 10.1002/marc.202100519] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 09/17/2021] [Indexed: 12/19/2022]
Abstract
The combination of excellent mechanical performances, high reprocess efficiency, and wide-range tunability for functional dynamic siloxane materials is a challenging subject. Herein, the fabrication of mechanically strong, autonomous self-healing, and fully recyclable silicone elastomers with unique photoluminescent properties by coordination of poly(dimethylsiloxane) (PDMS) containing coordination bonding motifs with Zn2+ ions is reported. Salicylaldimine groups, which are introduced into the polysiloxane backbone via mild Schiff-base reaction, coordinate with zinc ions to form elastomeric networks The obtained supramolecular elastomers have excellent mechanical properties, with the optimized tensile strength up to 10.0 MPa, which is unprecedented among the reported thermoplastic polysiloxane-based elastomers. Both mechanical properties and stress relaxation kinetics are tunable via adjusting the length of PDMS segments or the molar ratio of metal versus salicylaldimine. Furthermore, these elastomers can be conveniently healed and recycled to regain their original mechanical properties and integrity under mild conditions. In addition, this new kind of polysiloxane also exhibits coordination-enhanced fluorescence, showing great promise for preparing photoluminescent elastomers or coatings.
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Affiliation(s)
- Peijian Zhao
- Key Laboratory of Special Functional Aggregated Materials (Shandong University), Ministry of Education; School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Linlin Wang
- Key Laboratory of Special Functional Aggregated Materials (Shandong University), Ministry of Education; School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China.,Weihai New Era Chemical Co., Ltd., Weihai, 264205, P. R. China
| | - Lefu Xie
- Weihai New Era Chemical Co., Ltd., Weihai, 264205, P. R. China
| | - Wenyu Wang
- Key Laboratory of Special Functional Aggregated Materials (Shandong University), Ministry of Education; School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Lili Wang
- Key Laboratory of Special Functional Aggregated Materials (Shandong University), Ministry of Education; School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Changqiao Zhang
- Key Laboratory of Special Functional Aggregated Materials (Shandong University), Ministry of Education; School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Lei Li
- Key Laboratory of Special Functional Aggregated Materials (Shandong University), Ministry of Education; School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Shengyu Feng
- Key Laboratory of Special Functional Aggregated Materials (Shandong University), Ministry of Education; School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China.,Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
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12
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Sato KI, Ito S, Higashihara T, Fuchise K. Precise synthesis of α,ω-chain-end functionalized poly(dimethylsiloxane) with azide groups based on metal-free ring-opening polymerization and a quantitative azidation reaction. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.105009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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13
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14
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Wright T, Karis D, Millik SC, Tomkovic T, Hatzikiriakos SG, Nelson A, Wolf MO. Photocross-Linked Antimicrobial Amino-Siloxane Elastomers. ACS APPLIED MATERIALS & INTERFACES 2021; 13:22195-22203. [PMID: 33944560 DOI: 10.1021/acsami.1c02863] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Mechanically robust bulk antimicrobial polymers are one way to address disease transmission via contaminated surfaces. Here, we demonstrate the visible light photo-oxidative cross-linking of amine-containing PDMS using a single-component, solvent-free system where amines have a dual role as antimicrobial functionalities and cross-linking sites. Rose Bengal, a xanthene dye used as a fluorescent stain, is thermally reacted with the polymer to give a solvent-free liquid siloxane that can generate reactive singlet oxygen upon aerobic green light irradiation, coupling the amine functionalities into imine cross-links. Photorheological experiments demonstrate that light intensity is the largest kinetic factor in the photo-oxidative curing of these polymers. Room temperature irradiation under an ambient atmosphere results in free-standing elastic materials with mechanical properties that depend on the amount of Rose Bengal present. An ultimate elongation strain of 117% and Young's modulus of 2.15 MPa were observed for the highest dye loading, with both mechanical properties found to be higher than those for the same solution-based dye amounts. We demonstrate that the solvent-free nature of the material can be exploited to generate 3D structures using low-temperature deposition as well as direct-write patterning and photolithography on glass substrates. The antimicrobial activity was investigated, with the cross-linked material demonstrating greater efficacy against E. coli (Gram negative) compared with MRSA (Gram positive) bacterial strains and inducing complete cell lysis of incubated CHO-K1 mammalian cells, demonstrating applicability as a mechanically robust single-component antimicrobial elastomer.
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Affiliation(s)
- Taylor Wright
- Department of Chemistry, 2036 Main Mall, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Dylan Karis
- Department of Chemistry, 109 Bagley Hall, University of Washington, Seattle, Washington 98195-1700, United States
| | - S Cem Millik
- Department of Chemistry, 109 Bagley Hall, University of Washington, Seattle, Washington 98195-1700, United States
| | - Tanja Tomkovic
- Department of Chemical and Biological Engineering, 2360 East Mall, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Savvas G Hatzikiriakos
- Department of Chemical and Biological Engineering, 2360 East Mall, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Alshakim Nelson
- Department of Chemistry, 109 Bagley Hall, University of Washington, Seattle, Washington 98195-1700, United States
| | - Michael O Wolf
- Department of Chemistry, 2036 Main Mall, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
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15
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Wang M, Yuan Y, Zhao C, Diao S, Duan B. Preparation of fluorosilicone rubber containing perfluorocyclobutyl aryl ether. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mingying Wang
- College of Chemistry and Chemical Engineering Yantai University Yantai China
| | - Yan Yuan
- College of Chemistry and Chemical Engineering Yantai University Yantai China
| | - Caide Zhao
- College of Chemistry and Chemical Engineering Yantai University Yantai China
| | - Shen Diao
- College of Chemistry and Chemical Engineering Yantai University Yantai China
| | - Baorong Duan
- College of Chemistry and Chemical Engineering Yantai University Yantai China
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16
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Fuchise K, Sato K, Igarashi M. Organocatalytic controlled/living ring-opening polymerization of 1,3,5-triphenyl-1,3,5-tri- p-tolylcyclotrisiloxane for the precise synthesis of fusible, soluble, functionalized, and solid poly[phenyl( p-tolyl)siloxane]s. Polym Chem 2021. [DOI: 10.1039/d1py00652e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An organocatalytic controlled/living ring-opening polymerization (ROP) of 1,3,5-triphenyl-1,3,5-tri(p-tolyl)cyclotrisiloxane (PT3) produced linear poly[phenyl(p-tolyl)siloxane] (PPTS) with controlled structures.
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Affiliation(s)
- Keita Fuchise
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Kazuhiko Sato
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Masayasu Igarashi
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
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Cazin I, Rossegger E, Guedes de la Cruz G, Griesser T, Schlögl S. Recent Advances in Functional Polymers Containing Coumarin Chromophores. Polymers (Basel) 2020; 13:E56. [PMID: 33375724 PMCID: PMC7794725 DOI: 10.3390/polym13010056] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/19/2020] [Accepted: 12/20/2020] [Indexed: 11/17/2022] Open
Abstract
Natural and synthetic coumarin derivatives have gained increased attention in the design of functional polymers and polymer networks due to their unique optical, biological, and photochemical properties. This review provides a comprehensive overview over recent developments in macromolecular architecture and mainly covers examples from the literature published from 2004 to 2020. Along with a discussion on coumarin and its photochemical properties, we focus on polymers containing coumarin as a nonreactive moiety as well as polymer systems exploiting the dimerization and/or reversible nature of the [2πs + 2πs] cycloaddition reaction. Coumarin moieties undergo a reversible [2πs + 2πs] cycloaddition reaction upon irradiation with specific wavelengths in the UV region, which is applied to impart intrinsic healability, shape-memory, and reversible properties into polymers. In addition, coumarin chromophores are able to dimerize under the exposure to direct sunlight, which is a promising route for the synthesis and cross-linking of polymer systems under "green" and environment-friendly conditions. Along with the chemistry and design of coumarin functional polymers, we highlight various future application fields of coumarin containing polymers involving tissue engineering, drug delivery systems, soft robotics, or 4D printing applications.
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Affiliation(s)
- Ines Cazin
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, 8700 Leoben, Austria; (I.C.); (E.R.)
| | - Elisabeth Rossegger
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, 8700 Leoben, Austria; (I.C.); (E.R.)
| | - Gema Guedes de la Cruz
- Department Polymer Engineering and Science, Institute Chemistry of Polymeric Materials, Montanuniversitaet Leoben, Otto Glöckel-Strasse 2, 8700 Leoben, Austria; (G.G.d.l.C.); (T.G.)
| | - Thomas Griesser
- Department Polymer Engineering and Science, Institute Chemistry of Polymeric Materials, Montanuniversitaet Leoben, Otto Glöckel-Strasse 2, 8700 Leoben, Austria; (G.G.d.l.C.); (T.G.)
| | - Sandra Schlögl
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, 8700 Leoben, Austria; (I.C.); (E.R.)
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18
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Low-Temperature-Meltable Elastomers Based on Linear Polydimethylsiloxane Chains Alpha, Omega-Terminated with Mesogenic Groups as Physical Crosslinker: A Passive Smart Material with Potential as Viscoelastic Coupling. Part II-Viscoelastic and Rheological Properties. Polymers (Basel) 2020; 12:polym12122840. [PMID: 33260294 PMCID: PMC7760245 DOI: 10.3390/polym12122840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 11/27/2020] [Indexed: 11/16/2022] Open
Abstract
Rheological and viscoelastic properties of physically crosslinked low-temperature elastomers were studied. The supramolecularly assembling copolymers consist of linear polydimethylsiloxane (PDMS) elastic chains terminated on both ends with mesogenic building blocks (LC) of azobenzene type. They are generally and also structurally highly different from the well-studied LC polymer networks or LC elastomers: The LC units make up only a small volume fraction in our materials and act as fairly efficient physical crosslinkers with thermotropic properties. The aggregation (nano-phase separation) of the relatively rare, small and spatially separated terminal LC units generates temperature-switched viscoelasticity in the molten copolymers. Their rheological behavior was found to be controlled by an interplay of nano-phase separation of the LC units (growth and splitting of their aggregates) and of the thermotropic transitions in these aggregates (which change their stiffness). As a consequence, multiple gel points (up to three) are observed in temperature scans of the copolymers. The physical crosslinks also can be reversibly disconnected by large mechanical strain in the 'warm' rubbery state, as well as in melt (thixotropy). The kinetics of crosslink formation was found to be fast if induced by temperature and extremely fast in case of internal self-healing after strain damage. Thixotropic loop tests hence display only very small hysteresis in the LC-melt-state, although the melts show very distinct shear thinning. Our study evaluates structure-property relationships in three homologous systems with elastic PDMS segments of different length (8.6, 16.3 and 64.4 repeat units). The studied copolymers might be of interest as passive smart materials, especially as temperature-controlled elastic/viscoelastic mechanical coupling.
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Yepremyan A, Osamudiamen A, Brook MA, Feinle A. Dynamically tuning transient silicone polymer networks with hydrogen bonding. Chem Commun (Camb) 2020; 56:13555-13558. [PMID: 33048066 DOI: 10.1039/d0cc05478j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Supramolecular polymers are composed of non-covalently connected chains and characterized by high chain dynamics. The viscoelastic behavior of supramolecular telechelic sugar-siloxanes - ranging from solids to viscous fluids able to form transient polymer networks - is readily tuned by the fraction of internal HO groups that can intermolecularly form hydrogen bonds.
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Affiliation(s)
- Akop Yepremyan
- McMaster University, Department of Chemistry and Chemical Biology, 1280 Main Street West, Hamilton, ON L8S 4M1, Canada
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20
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Horodecka S, Strachota A, Mossety-Leszczak B, Strachota B, Šlouf M, Zhigunov A, Vyroubalová M, Kaňková D, Netopilík M, Walterová Z. Low-Temperature Meltable Elastomers Based on Linear Polydimethylsiloxane Chains Alpha, Omega-Terminated with Mesogenic Groups as Physical Crosslinkers: A Passive Smart Material with Potential as Viscoelastic Coupling. Part I: Synthesis and Phase Behavior. Polymers (Basel) 2020; 12:E2476. [PMID: 33113875 PMCID: PMC7693640 DOI: 10.3390/polym12112476] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/20/2020] [Accepted: 10/22/2020] [Indexed: 12/14/2022] Open
Abstract
Physically crosslinked low-temperature elastomers were prepared based on linear polydimethylsiloxane (PDMS) elastic chains terminated on both ends with mesogenic building blocks (LC) of azobenzene type. They are generally (and also structurally) highly different from the well-studied LC polymer networks (light-sensitive actuators). The LC units also make up only a small volume fraction in our materials and they do not generate elastic energy upon irradiation, but they act as physical crosslinkers with thermotropic properties. Our elastomers lack permanent chemical crosslinks-their structure is fully linear. The aggregation of the relatively rare, small, and spatially separated terminal LC units nevertheless proved to be a considerably strong crosslinking mechanism. The most attractive product displays a rubber plateau extending over 100 °C, melts near 8 °C, and is soluble in organic solvents. The self-assembly (via LC aggregation) of the copolymer molecules leads to a distinctly lamellar structure indicated by X-ray diffraction (XRD). This structure persists also in melt (polarized light microscopy, XRD), where 1-2 thermotropic transitions occur. The interesting effects of the properties of this lamellar structure on viscoelastic and rheological properties in the rubbery and in the melt state are discussed in a follow-up paper ("Part II"). The copolymers might be of interest as passive smart materials, especially as temperature-controlled elastic/viscoelastic mechanical coupling. Our study focuses on the comparison of physical properties and structure-property relationships in three systems with elastic PDMS segments of different length (8.6, 16.3, and 64.4 repeat units).
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Affiliation(s)
- Sabina Horodecka
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
- Faculty of Science, Charles University, Albertov 6, CZ-128 00 Praha 2, Czech Republic
| | - Adam Strachota
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
| | - Beata Mossety-Leszczak
- Faculty of Chemistry, Rzeszow University of Technology, al. Powstancow Warszawy 6, PL-35-959 Rzeszow, Poland;
| | - Beata Strachota
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
| | - Miroslav Šlouf
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
| | - Alexander Zhigunov
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
| | - Michaela Vyroubalová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
| | - Dana Kaňková
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
| | - Miloš Netopilík
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
| | - Zuzana Walterová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
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21
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Guo R, Liu Y, Zhou L, Li N, Chen G, Zhou Z, Li Q. Synthesis and properties of thermoplastic and dissolvable polysiloxanes containing polyhedral oligomeric silsesquioxane. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20199265] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Ruilu Guo
- Key Laboratory of Carbon Fiber and Functional Polymers Ministry of Education Beijing Beijing China
- College of Material Science and Engineering Beijing University of Chemical Technology Beijing China
| | - Yuemin Liu
- College of Material Science and Engineering Beijing University of Chemical Technology Beijing China
| | - Lixia Zhou
- College of Material Science and Engineering Beijing University of Chemical Technology Beijing China
| | - Na Li
- College of Material Science and Engineering Beijing University of Chemical Technology Beijing China
| | - Guangxin Chen
- Key Laboratory of Carbon Fiber and Functional Polymers Ministry of Education Beijing Beijing China
- College of Material Science and Engineering Beijing University of Chemical Technology Beijing China
| | - Zheng Zhou
- Key Laboratory of Carbon Fiber and Functional Polymers Ministry of Education Beijing Beijing China
- College of Material Science and Engineering Beijing University of Chemical Technology Beijing China
| | - Qifang Li
- College of Material Science and Engineering Beijing University of Chemical Technology Beijing China
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing China
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22
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Fatona A, Osamudiamen A, Moran‐Mirabal J, Brook MA. Rapid, catalyst‐free crosslinking of silicones using triazines. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ayodele Fatona
- Department of Chemistry and Chemical BiologyMcMaster University 1280 Main St. W., Hamilton Ontario L8S 4M1 Canada
| | - Andrew Osamudiamen
- Department of Chemistry and Chemical BiologyMcMaster University 1280 Main St. W., Hamilton Ontario L8S 4M1 Canada
| | - Jose Moran‐Mirabal
- Department of Chemistry and Chemical BiologyMcMaster University 1280 Main St. W., Hamilton Ontario L8S 4M1 Canada
| | - Michael A. Brook
- Department of Chemistry and Chemical BiologyMcMaster University 1280 Main St. W., Hamilton Ontario L8S 4M1 Canada
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23
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Faiczak K, Brook MA, Feinle A. Energy-Dissipating Polymeric Silicone Surfactants. Macromol Rapid Commun 2020; 41:e2000161. [PMID: 32346942 DOI: 10.1002/marc.202000161] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 04/14/2020] [Accepted: 04/15/2020] [Indexed: 11/06/2022]
Abstract
Materials that are able to withstand impact loadings by dissipating energy are crucial for a broad range of different applications, including personal protective applications. Shear-thickening fluids (STFs) are often used for this purpose, but their preparation is still limited, in part, to high production costs. It is demonstrated that polymeric surfactants comprised of linear telechelic sugar-modified silicones-with neither additives nor particles-generate transient polymer networks (TPNs) that represent a promising alternative to STFs. The reported polymers have distinct viscoelastic properties and can turn from a liquid into a rubbery network when force is applied. Saccharide-modified silicones with short chains (degree of polymerization (DP) ≈ 34, 68) are solids, but become energy-absorbing viscoelastic fluids when diluted in low-viscosity silicone oils; longer silicones (DP ≈ 338, 675) with low saccharide contents are viscoelastic fluids at room temperature. Excellent damping properties are found for the reported silicone surfactants, even those containing only 0.1% saccharides. The degree of energy absorption can be tailored simply by controlling the sugar/silicone ratio.
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Affiliation(s)
- Kyle Faiczak
- McMaster University, Department of Chemistry and Chemical Biology, 1280 Main Street West, Hamilton, ON, L8S 4M1, Canada
| | - Michael A Brook
- McMaster University, Department of Chemistry and Chemical Biology, 1280 Main Street West, Hamilton, ON, L8S 4M1, Canada
| | - Andrea Feinle
- McMaster University, Department of Chemistry and Chemical Biology, 1280 Main Street West, Hamilton, ON, L8S 4M1, Canada.,Paris-Lodron University Salzburg, Department of Chemistry and Physics of Materials, Jakob-Haringer Str. 2A, Salzburg, Austria, 5020
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24
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Hu H, Wang L, Wang L, Li L, Feng S. Imine-functionalized polysiloxanes for supramolecular elastomers with tunable mechanical properties. Polym Chem 2020. [DOI: 10.1039/d0py01253j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of imine-functionalized polysiloxanes were reported for the first time and used to build supramolecular coordination elastomers.
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Affiliation(s)
- Han Hu
- Key Laboratory of Special Functional Aggregated Materials (Shandong University)
- Ministry of Education; School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- 250100 P. R. China
| | - Linlin Wang
- Key Laboratory of Special Functional Aggregated Materials (Shandong University)
- Ministry of Education; School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- 250100 P. R. China
| | - Lili Wang
- Key Laboratory of Special Functional Aggregated Materials (Shandong University)
- Ministry of Education; School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- 250100 P. R. China
| | - Lei Li
- Key Laboratory of Special Functional Aggregated Materials (Shandong University)
- Ministry of Education; School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- 250100 P. R. China
| | - Shengyu Feng
- Key Laboratory of Special Functional Aggregated Materials (Shandong University)
- Ministry of Education; School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- 250100 P. R. China
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25
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Zheng S, Chen Y, Brook MA. Thermoplastic silicone elastomers based on Gemini ionic crosslinks. Polym Chem 2020. [DOI: 10.1039/d0py01044h] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gemini ionic crosslinks produced by neutralization of dicarboxylic and diamino silicones lead in a facile manner to thermoplastic silicone elastomers.
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Affiliation(s)
- Sijia Zheng
- Department of Chemistry and Chemical Biology
- McMaster University
- Hamilton
- Canada L8S 4 M1
| | - Yang Chen
- Department of Chemistry and Chemical Biology
- McMaster University
- Hamilton
- Canada L8S 4 M1
| | - Michael A. Brook
- Department of Chemistry and Chemical Biology
- McMaster University
- Hamilton
- Canada L8S 4 M1
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26
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Lamers BAG, Ślęczkowski ML, Wouters F, Engels TAP, Meijer EW, Palmans ARA. Tuning polymer properties of non-covalent crosslinked PDMS by varying supramolecular interaction strength. Polym Chem 2020. [DOI: 10.1039/d0py00139b] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Linear polydimethylsiloxane (PDMS) is crosslinked by supramolecular grafts to obtain materials with strikingly different mechanical properties by tuning the strength of the non-covalent interactions.
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Affiliation(s)
- Brigitte A. G. Lamers
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Marcin L. Ślęczkowski
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Fabian Wouters
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Tom A. P. Engels
- Department of Mechanical Engineering
- Materials Technology Institute
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - E. W. Meijer
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Anja R. A. Palmans
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
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27
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Liu Y, Zhang K, Sun J, Yuan J, Yang Z, Gao C, Wu Y. A Type of Hydrogen Bond Cross-Linked Silicone Rubber with the Thermal-Induced Self-Healing Properties Based on the Nonisocyanate Reaction. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03953] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yuetao Liu
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Kaiming Zhang
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Jiawen Sun
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Junguo Yuan
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Zhengyi Yang
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Chuanhui Gao
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yumin Wu
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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28
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Yuan R, Fan S, Sun Y, Wu D, Wang X, Yu J, Li F. Enhanced Mechanical Properties of PET‐Based Thermoplastic Elastomers: Brittle–Ductile Transition via Micro Cross‐linking Technology. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900206] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ruchao Yuan
- Key Laboratory of Textile Science & TechnologyMinistry of EducationCollege of TextilesDonghua University Shanghai 201620 China
- College of TextilesDonghua University Shanghai 201620 China
| | - Shuo Fan
- Key Laboratory of Textile Science & TechnologyMinistry of EducationCollege of TextilesDonghua University Shanghai 201620 China
- College of TextilesDonghua University Shanghai 201620 China
| | - Yanlu Sun
- Key Laboratory of Textile Science & TechnologyMinistry of EducationCollege of TextilesDonghua University Shanghai 201620 China
- College of TextilesDonghua University Shanghai 201620 China
| | - Dequn Wu
- Key Laboratory of Textile Science & TechnologyMinistry of EducationCollege of TextilesDonghua University Shanghai 201620 China
- College of TextilesDonghua University Shanghai 201620 China
| | - Xueli Wang
- Innovation Center for Textile Science & TechnologyDonghua University Shanghai 201620 China
| | - Jianyong Yu
- Innovation Center for Textile Science & TechnologyDonghua University Shanghai 201620 China
| | - Faxue Li
- Key Laboratory of Textile Science & TechnologyMinistry of EducationCollege of TextilesDonghua University Shanghai 201620 China
- College of TextilesDonghua University Shanghai 201620 China
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29
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Zuo Y, Zhang Y, Dong B, Gou Z, Yang T, Lin W. Binding Reaction Sites to Polysiloxanes: Unique Fluorescent Probe for Reversible Detection of ClO–/GSH Pair and the in Situ Imaging in Live Cells and Zebrafish. Anal Chem 2019; 91:1719-1723. [DOI: 10.1021/acs.analchem.8b05465] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yujing Zuo
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Shandong 250022, P.R. China
| | - Yu Zhang
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Shandong 250022, P.R. China
| | - Baoli Dong
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Shandong 250022, P.R. China
| | - Zhiming Gou
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Shandong 250022, P.R. China
| | - Tingxin Yang
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Shandong 250022, P.R. China
| | - Weiying Lin
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Shandong 250022, P.R. China
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30
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Feng Z, Yu B, Hu J, Zuo H, Li J, Sun H, Ning N, Tian M, Zhang L. Multifunctional Vitrimer-Like Polydimethylsiloxane (PDMS): Recyclable, Self-Healable, and Water-Driven Malleable Covalent Networks Based on Dynamic Imine Bond. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b05309] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Zhanbin Feng
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Bing Yu
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jing Hu
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hongli Zuo
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianping Li
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Haibin Sun
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Nanying Ning
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ming Tian
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
| | - Liqun Zhang
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
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31
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Lei Y, Huang Q, Shan S, Lin Y, Zhang A. A stretchable and rapidly self-healable polysiloxane elastomer based on reversible aluminum–amino coordination. NEW J CHEM 2019. [DOI: 10.1039/c9nj03909k] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Dynamic coordination between aluminum and amines promotes rapid self-healing for polysiloxane elastomers at lower temperature.
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Affiliation(s)
- Yufeng Lei
- School of Material Science and Engineering
- South China University of Technology
- Guangzhou 510641
- China
| | - Qiuping Huang
- School of Material Science and Engineering
- South China University of Technology
- Guangzhou 510641
- China
| | - Shijie Shan
- School of Material Science and Engineering
- South China University of Technology
- Guangzhou 510641
- China
| | - Yaling Lin
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- China
| | - Anqiang Zhang
- School of Material Science and Engineering
- South China University of Technology
- Guangzhou 510641
- China
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33
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Mazurek P, Vudayagiri S, Skov AL. How to tailor flexible silicone elastomers with mechanical integrity: a tutorial review. Chem Soc Rev 2019; 48:1448-1464. [DOI: 10.1039/c8cs00963e] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The tutorial aims to equip the beginners in silicone research with the knowledge to formulate recipes and process elastomer networks, targeting specific properties related to soft applications such as stretchable electronics without compromising the mechanical integrity of the elastomer.
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Affiliation(s)
- Piotr Mazurek
- Department of Chemical Engineering
- Technical University of Denmark
- Denmark
| | - Sindhu Vudayagiri
- Department of Chemical Engineering
- Technical University of Denmark
- Denmark
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34
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Fatona A, Moran-Mirabal J, Brook MA. Controlling silicone networks using dithioacetal crosslinks. Polym Chem 2019. [DOI: 10.1039/c8py01352g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Rapid metal free cure of thiopropylsilicones occurs via facile thioacetal formation.
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Affiliation(s)
- Ayodele Fatona
- Department of Chemistry and Chemical Biology
- McMaster University
- Hamilton
- Canada L8S 4 M1
| | - Jose Moran-Mirabal
- Department of Chemistry and Chemical Biology
- McMaster University
- Hamilton
- Canada L8S 4 M1
| | - Michael A. Brook
- Department of Chemistry and Chemical Biology
- McMaster University
- Hamilton
- Canada L8S 4 M1
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35
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Sarkar A, Mehra M, Dasgupta D, Negi L, Saxena A. Evidence of Cooperativity among van der Waals Interactions in Segmented Polysiloxane. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01636] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alok Sarkar
- Corporate R&D Center, Momentive Performance Materials Inc., Survey No. 09, Hosur Road, Electronic City (West), Bangalore 560100, India
| | - Meenal Mehra
- Corporate R&D Center, Momentive Performance Materials Inc., Survey No. 09, Hosur Road, Electronic City (West), Bangalore 560100, India
| | - Debarshi Dasgupta
- Corporate R&D Center, Momentive Performance Materials Inc., Survey No. 09, Hosur Road, Electronic City (West), Bangalore 560100, India
| | - Lalit Negi
- Momentive Performance
Materials Inc., B-3, Sipcot, Oragadam, Kancheepuram Dist., Sriperumpudur 602105, India
| | - Anubhav Saxena
- Corporate R&D Center, Momentive Performance Materials Inc., Survey No. 09, Hosur Road, Electronic City (West), Bangalore 560100, India
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36
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Honda S, Toyota T. Photocontrolled network formation and dissociation with coumarin end-functionalized branched poly(dimethyl siloxane)s. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.06.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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37
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Ishibashi JSA, Kalow JA. Vitrimeric Silicone Elastomers Enabled by Dynamic Meldrum's Acid-Derived Cross-Links. ACS Macro Lett 2018; 7:482-486. [PMID: 35619346 DOI: 10.1021/acsmacrolett.8b00166] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Current vitrimer technology uses only a handful of distinct reactions for cross-linking. New dynamic reactions can diversify vitrimer functionality and properties. In this paper, reversible cross-links formed by conjugate addition-elimination of thiols with a Meldrum's acid derivative enable compression-remolding of silicone elastomers. After 10 remolding cycles, there is no discernible deterioration of mechanical properties (Young's modulus, Tg, rubbery plateau E'), nor is there a change in stress relaxation activation energy. This robust new cross-linker could be implemented in any number of systems that currently use permanent thiol-ene cross-linking, expanding the scope of recyclable materials.
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Affiliation(s)
- Jacob S. A. Ishibashi
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Julia A. Kalow
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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38
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Teixeira E, Lima JC, Parola AJ, Branco PS. Incorporation of Coumarin-Based Fluorescent Monomers into Co-Oligomeric Molecules. Polymers (Basel) 2018; 10:polym10040396. [PMID: 30966431 PMCID: PMC6415208 DOI: 10.3390/polym10040396] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 03/24/2018] [Accepted: 04/01/2018] [Indexed: 12/23/2022] Open
Abstract
With the purpose of modifying organic fluorescent dyes based on the coumarin scaffold, and developing and evaluating a route to its incorporation into a polymeric backbone, a study was conducted on the co-polymerization of 3-vinylcoumarins with styrene and methyl acrylate using 2,2-azobis(isobutyronitrile) (AIBN) as the radical initiator. The structural and photophysical characterization proved the incorporation of the coumarin monomers into the polymeric chain and further showed a decrease in the fluorescence quantum yields in the co-oligomers.
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Affiliation(s)
- Edgar Teixeira
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
| | - João C Lima
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
| | - A Jorge Parola
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
| | - Paula S Branco
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
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39
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Deshpande AA, Torris A T A, Pahari S, Menon SK, Badiger MV, Rajamohanan PR, Wadgaonkar PP, Roy S, Tonelli C. Mechanism of the formation of microphase separated water clusters in a water-mediated physical network of perfluoropolyether tetraol. SOFT MATTER 2018; 14:2339-2345. [PMID: 29493703 DOI: 10.1039/c7sm02181j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Perfluoropolyether tetraol (PFPE tetraol) possesses a hydrophobic perfluoropolyether chain in the backbone and two hydroxyl groups at each chain terminal, which facilitates the formation of hydrogen bonds with water molecules resulting in the formation an extended physical network. About 3 wt% water was required for the formation of the microphase separated physical network of PFPE tetraol. The mechanism responsible for the microphase separation of water clusters in the physical network was studied using a combination of techniques such as NMR spectroscopy, molecular dynamics (MD) simulations and DSC. MD simulation studies provided evidence for the formation of clusters in the PFPE tetraol physical network and the size of these clusters increased gradually with an increase in the extent of hydration. Both MD simulations and NMR spectroscopy studies revealed that these clusters position themselves away from the hydrophobic backbone or vice versa. The presence of intra- and inter-chain aggregation possibility among hydrophilic groups was evident. DSC results demonstrated the presence of tightly and loosely bound water molecules to the terminal hydroxyl groups of PFPE tetraol through hydrogen bonding. The data from all the three techniques established the formation of a physical network driven by hydrogen bonding between the hydrophilic end groups of PFPE tetraol and water molecules. The flexible nature of the PFPE tetraol backbone and its low solubility parameter favour clustering of water molecules at the terminal groups and result in the formation of a gel.
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Affiliation(s)
- Ashwini A Deshpande
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr Homi Bhaba Road, Pune 411008, Maharashtra, India and Academy of Scientific and Innovative Research (AcSIR), CSIR-NCL Campus, Dr Homi Bhaba Road, Pune 411008, Maharashtra, India.
| | - Arun Torris A T
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr Homi Bhaba Road, Pune 411008, Maharashtra, India
| | - Swagata Pahari
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhaba Road, Pune 411008, Maharashtra, India
| | - Shamal K Menon
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr Homi Bhaba Road, Pune 411008, Maharashtra, India
| | - Manohar V Badiger
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr Homi Bhaba Road, Pune 411008, Maharashtra, India and Academy of Scientific and Innovative Research (AcSIR), CSIR-NCL Campus, Dr Homi Bhaba Road, Pune 411008, Maharashtra, India.
| | - P R Rajamohanan
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NCL Campus, Dr Homi Bhaba Road, Pune 411008, Maharashtra, India. and Central NMR Facility, CSIR-National Chemical Laboratory, Dr Homi Bhaba Road, Pune 411008, Maharashtra, India
| | - Prakash P Wadgaonkar
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr Homi Bhaba Road, Pune 411008, Maharashtra, India and Academy of Scientific and Innovative Research (AcSIR), CSIR-NCL Campus, Dr Homi Bhaba Road, Pune 411008, Maharashtra, India.
| | - Sudip Roy
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NCL Campus, Dr Homi Bhaba Road, Pune 411008, Maharashtra, India. and Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhaba Road, Pune 411008, Maharashtra, India
| | - Claudio Tonelli
- Solvay Specialty Polymers, Viale Lombardia 20 - 20021 Bollate (MI), Italy.
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40
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Polysiloxane/Polystyrene Thermo-Responsive and Self-Healing Polymer Network via Lewis Acid-Lewis Base Pair Formation. Molecules 2018; 23:molecules23020405. [PMID: 29438313 PMCID: PMC6017355 DOI: 10.3390/molecules23020405] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 02/06/2018] [Accepted: 02/08/2018] [Indexed: 11/16/2022] Open
Abstract
The use of thermo-reversible Lewis Pair (LP) interactions in the formation of transient polymer networks is still greatly underexplored. In this work, we describe the synthesis and characterization of polydimethylsiloxane/polystyrene (PDMS/PS) blends that form dynamic Lewis acid-Lewis base adducts resulting in reversible crosslinks. Linear PS containing 10 mol % of di-2-thienylboryl pendant groups randomly distributed was obtained in a two-step one-pot functionalization reaction from silyl-functionalized PS, while ditelechelic PDMS with pyridyl groups at the chain-termini was directly obtained via thiol-ene “click” chemistry from commercially available vinyl-terminated PDMS. The resulting soft gels, formed after mixing solutions containing the PDMS and PS polymers, behave at room temperature as elastomeric solid-like materials with very high viscosity (47,300 Pa·s). We applied rheological measurements to study the thermal and time dependence of the viscoelastic moduli, and also assessed the reprocessability and self-healing behavior of the dry gel.
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41
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Xu D, Lu H, Huang Q, Deng B, Li L. Flame-retardant effect and mechanism of melamine phosphate on silicone thermoplastic elastomer. RSC Adv 2018; 8:5034-5041. [PMID: 35539510 PMCID: PMC9077763 DOI: 10.1039/c7ra12865g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 01/22/2018] [Indexed: 11/21/2022] Open
Abstract
Different from the traditional silicone materials, which are not easily ignited, silicone thermoplastic elastomer (Si-TPE) has poor flame retardant properties due to the existence of the hard segments in its molecular chains. In this paper, melamine phosphate (MP), a kind of halogen free flame retardant, was adopted to improve the flame retardancy of Si-TPE. The results showed that MP played the role of flame retardant in both gas and condensed phases due to its nitrogen–phosphorus-containing structure. Inert gases, including nitrogen, steam and ammonia which were released by the degradation of melamine during burning, could take away the heat and dilute the oxygen in the gas phase, and further working with the phosphoric acid, which was generated in the condensed phase, to form a denser and firmer char layer. In this way, Si-TPE/MP composite with good flame retardancy was obtained. Interestingly, MP had little influence on the thermal processability of Si-TPE, even at 28 wt% content, ascribing to its two opposite effects on Si-TPE, but enhanced the comprehensive mechanical properties of Si-TPE with suitable loadings, e.g. when the MP content was 28 wt%, the composite reached UL94-V0 rating, and its tensile strength and Young's modulus were 3.5 MPa and 37.7 MPa, respectively. Halogen-free flame retardant – MP was successfully adopted to improve the comprehensive properties of the novel Si-TPE.![]()
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Affiliation(s)
- Dawei Xu
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Chengdu 610065
- China
| | - Hongchao Lu
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Chengdu 610065
- China
| | - Qiang Huang
- Cheng Du Gui Bao Science & Technology Co., Ltd
- Chengdu
- People's Republic of China
| | - Bofu Deng
- Cheng Du Gui Bao Science & Technology Co., Ltd
- Chengdu
- People's Republic of China
| | - Li Li
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Chengdu 610065
- China
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42
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Ogliani E, Yu L, Javakhishvili I, Skov A. A thermo-reversible silicone elastomer with remotely controlled self-healing. RSC Adv 2018; 8:8285-8291. [PMID: 35541989 PMCID: PMC9078532 DOI: 10.1039/c7ra13686b] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 02/18/2018] [Indexed: 11/25/2022] Open
Abstract
Soft thermoplastic elastomers with increased durability and reliability are in high demand for a broad spectrum of applications. Silicone elastomers are soft and durable, but they are not thermoplastic in nature, and under extreme conditions such as high voltage or large deformations, reliability may also suffer. Thus, as a solution to these shortcomings, which are typical of silicone elastomers, it is natural to propose a thermo-reversible, self-healing, and recyclable silicone-based elastomer. Stimuli-responsivity is imparted to the silicone polymer by incorporating supramolecular 2-ureido-4[1H]-pyrimidone (UPy) self-assembling motifs via free radical polymerisation. Self-healing of the novel elastomer may be triggered by both direct and indirect heating, the latter by means of incorporating Fe3O4 particles into the elastomer and subsequent exposure to an alternating magnetic field. As a consequence of temperature responsiveness and high thermal stability, the elastomer is proven recyclable, by withstanding multiple reprocessing procedures with no substantial effects on the resulting properties. The synergy of these valuable characteristics makes this novel material a smart candidate for innumerable applications where soft and reliable elastomers are sought. A silicone elastomer with high healing efficiency due to supramolecular self-associating hydrogen bonding motifs has been synthesised.![]()
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Affiliation(s)
- E. Ogliani
- Danish Polymer Centre
- Department of Chemical and Biochemical Engineering
- Technical University of Denmark
- Denmark
| | - L. Yu
- Danish Polymer Centre
- Department of Chemical and Biochemical Engineering
- Technical University of Denmark
- Denmark
| | - I. Javakhishvili
- Danish Polymer Centre
- Department of Chemical and Biochemical Engineering
- Technical University of Denmark
- Denmark
| | - A. L. Skov
- Danish Polymer Centre
- Department of Chemical and Biochemical Engineering
- Technical University of Denmark
- Denmark
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43
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Zhang H, Cai C, Liu W, Li D, Zhang J, Zhao N, Xu J. Recyclable Polydimethylsiloxane Network Crosslinked by Dynamic Transesterification Reaction. Sci Rep 2017; 7:11833. [PMID: 28928370 PMCID: PMC5605709 DOI: 10.1038/s41598-017-11485-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 08/23/2017] [Indexed: 11/16/2022] Open
Abstract
This article reports preparation of a crosslinked polydimethylsiloxane (PDMS) network via dynamic transesterification reaction between PDMS-diglycidyl ether and pripol 1017 with Zn(OAc)2 as the catalyst. The thermal dynamic nature of the network was investigated by the creep-recovery and stress-relaxation tests. The synthesized PDMS elastomer showed excellent solvent resistance even under high temperature, and could be reprocessed by hot pressing at 180 °C with the mechanical properties maintained after 10 cycles. Application of the PDMS elastomer in constructing micro-patterned stamps repeatedly has been demonstrated. The high plastic temperature and good solvent resistance distinguish the research from other reported thermoplastic PDMS elastomers and broaden the practical application areas.
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Affiliation(s)
- Huan Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chao Cai
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenxing Liu
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Dongdong Li
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jiawei Zhang
- Division of Polymer and Composite Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Ning Zhao
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Jian Xu
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
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44
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Seoane Rivero R, Navarro R, Bilbao Solaguren P, Gondra Zubieta K, Cuevas JM, Marcos-Fernández A. Synthesis and characterization of photo-crosslinkable linear segmented polyurethanes based on coumarin. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.05.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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45
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Tazawa S, Shimojima A, Maeda T, Hotta A. Thermoplastic polydimethylsiloxane with
l
‐phenylalanine‐based hydrogen‐bond networks. J Appl Polym Sci 2017. [DOI: 10.1002/app.45419] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Shunsuke Tazawa
- Department of Mechanical EngineeringKeio University3‐14‐1 Hiyoshi, Kohoku‐ku Yokohama223‐8522 Japan
| | - Atsushi Shimojima
- Department of Applied ChemistryWaseda University3‐4‐1 Okubo, Shinjuku‐ku Tokyo169‐8555 Japan
| | - Tomoki Maeda
- Department of Mechanical EngineeringKeio University3‐14‐1 Hiyoshi, Kohoku‐ku Yokohama223‐8522 Japan
| | - Atsushi Hotta
- Department of Mechanical EngineeringKeio University3‐14‐1 Hiyoshi, Kohoku‐ku Yokohama223‐8522 Japan
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46
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Cui K, Wang D, Zhang H, Guo J, Cai C, Zhu C, Zhao N, Xu J. Preparation of recyclable polybutadiene rubber based on acid-base complexation. J Appl Polym Sci 2017. [DOI: 10.1002/app.45280] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Kejian Cui
- College of Chemistry and Chemical Engineering; Shenzhen University; Shenzhen 518060 China
- Beijing National Laboratory for Molecular Sciences; Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
| | - Dong Wang
- Beijing National Laboratory for Molecular Sciences; Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
| | - Huan Zhang
- Beijing National Laboratory for Molecular Sciences; Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
| | - Jing Guo
- Beijing National Laboratory for Molecular Sciences; Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
| | - Chao Cai
- Beijing National Laboratory for Molecular Sciences; Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
| | - Caizhen Zhu
- College of Chemistry and Chemical Engineering; Shenzhen University; Shenzhen 518060 China
| | - Ning Zhao
- Beijing National Laboratory for Molecular Sciences; Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
| | - Jian Xu
- Beijing National Laboratory for Molecular Sciences; Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
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47
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Zhang H, Wang D, Liu W, Li P, Liu J, Liu C, Zhang J, Zhao N, Xu J. Recyclable polybutadiene elastomer based on dynamic imine bond. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28577] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Huan Zhang
- Beijing National Laboratory for Molecular Sciences; Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Dong Wang
- Beijing National Laboratory for Molecular Sciences; Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Wenxing Liu
- Beijing National Laboratory for Molecular Sciences; Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Pengchong Li
- Beijing National Laboratory for Molecular Sciences; Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
| | - Jiajian Liu
- Beijing National Laboratory for Molecular Sciences; Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Chenyang Liu
- Beijing National Laboratory for Molecular Sciences; Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Jiawei Zhang
- Division of Polymer and Composite Materials; Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences; Ningbo 315201 China
| | - Ning Zhao
- Beijing National Laboratory for Molecular Sciences; Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
| | - Jian Xu
- Beijing National Laboratory for Molecular Sciences; Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
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48
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Jellali R, Bertrand V, Alexandre M, Rosière N, Grauwels M, De Pauw-Gillet MC, Jérôme C. Photoreversibility and Biocompatibility of Polydimethylsiloxane-Coumarin as Adjustable Intraocular Lens Material. Macromol Biosci 2017; 17. [DOI: 10.1002/mabi.201600495] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 01/26/2017] [Indexed: 12/31/2022]
Affiliation(s)
- Rachid Jellali
- Center for Education and Research on Macromolecules (CERM); Chemistry Department; University of Liege; B6 Sart-Tilman B-4000 Liege Belgium
| | - Virginie Bertrand
- Laboratory of Mammalian Cell Culture (GIGA-R); University of Liege; B6 Sart-Tilman B-4000 Liege Belgium
| | - Michaël Alexandre
- Center for Education and Research on Macromolecules (CERM); Chemistry Department; University of Liege; B6 Sart-Tilman B-4000 Liege Belgium
| | - Nancy Rosière
- Laboratory of Mammalian Cell Culture (GIGA-R); University of Liege; B6 Sart-Tilman B-4000 Liege Belgium
| | - Magda Grauwels
- Département Clinique des Animaux de Compagnie et des Équidés; University of Liège; B44 Sart-Tilman B-4000 Liege Belgium
| | | | - Christine Jérôme
- Center for Education and Research on Macromolecules (CERM); Chemistry Department; University of Liege; B6 Sart-Tilman B-4000 Liege Belgium
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49
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Lu H, Feng S. Supramolecular Silicone Elastomers with Healable and Hydrophobic Properties Crosslinked by “Salt-Forming Vulcanization”. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28450] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hang Lu
- Key Laboratory of Special Functional Aggregated Materials & Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, School of Chemistry and Chemical Engineering Shandong University; Jinan 250100 People's Republic of China
| | - Shengyu Feng
- Key Laboratory of Special Functional Aggregated Materials & Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, School of Chemistry and Chemical Engineering Shandong University; Jinan 250100 People's Republic of China
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50
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Feng K, Li S, Feng L, Feng S. Synthesis of thermo- and photo-responsive polysiloxanes with tunable phase separation viaaza-Michael addition. NEW J CHEM 2017. [DOI: 10.1039/c7nj03177g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Two kinds of thermo- and photo-dual-responsive polysiloxanes were synthesized through a facile, effective, and catalyst-free aza-Michael addition.
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Affiliation(s)
- Kai Feng
- Key Laboratory of Special Functional Aggregated Materials, Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University
- Jinan
- China
| | - Shusheng Li
- Key Laboratory of Special Functional Aggregated Materials, Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University
- Jinan
- China
- School of Chemistry and Chemical Engineering, University of Jinan
- Jinan
| | - Linglong Feng
- Key Laboratory of Special Functional Aggregated Materials, Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University
- Jinan
- China
| | - Shengyu Feng
- Key Laboratory of Special Functional Aggregated Materials, Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University
- Jinan
- China
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