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Elsherbiny AS, Galal A, Ghoneem KM, Salahuddin NA. Graphene oxide-based nanocomposites for outstanding eco-friendly antifungal potential against tomato phytopathogens. BIOMATERIALS ADVANCES 2024; 160:213863. [PMID: 38642516 DOI: 10.1016/j.bioadv.2024.213863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 04/01/2024] [Accepted: 04/15/2024] [Indexed: 04/22/2024]
Abstract
To obtain the collaborative antifungal potential of nanocomposites conjugated with graphene oxide (GO), a combination of GO with chitosan (CS/GO) and GO with chitosan (CS) and polyaniline (PANI/CS/GO) was carried out. The synthesized GO-nanocomposites were recognized by several techniques. Vanillin (Van.) and cinnamaldehyde (Cinn.) were loaded on the prepared nanocomposites as antioxidants through a batch adsorption process. In vitro release study of Van. and Cinn. from the nanocomposites was accomplished at pH 7 and 25°C. The antimicrobial activity of GO, CS/GO, and PANI/CS/GO was studied against tomato Fusarium oxysporum (FOL) and Pythium debaryanum (PYD) pathogens. The loaded ternary composite PANI/CS/GO exhibited the best percent of reduction against the two pathogens in vitro studies. The Greenhouse experiment revealed that seedlings' treatment by CS/GO/Van. and PANI/CS/GO/Van significantly lowered both disease index and disease incidence. The loaded CS/GO and PANI/CS/GO nanocomposites had a positive effect on lengthening shoots. Additionally, when CS/GO/Cinn., CS/GO/Van. and PANI/CS/GO/Van. were used, tomato seedlings' photosynthetic pigments dramatically increased as compared to infected control. The results show that these bio-nanocomposites can be an efficient, sustainable, nontoxic, eco-friendly, and residue-free approach for fighting fungal pathogens and improving plant growth.
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Affiliation(s)
- Abeer S Elsherbiny
- Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt.
| | - Alyaa Galal
- Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Khalid M Ghoneem
- Seed Pathology Research Department, Plant Pathology Research Institute, Agricultural Research Center (ID: 60019332), Giza 12112, Egypt
| | - Nehal A Salahuddin
- Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt
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2
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Grover T, Guymon CA. Effect of Block Copolymer Self-Assembly on Phase Separation in Photopolymerizable Epoxy Blends. Macromolecules 2024; 57:4717-4728. [PMID: 38827959 PMCID: PMC11140735 DOI: 10.1021/acs.macromol.4c00192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/17/2024] [Accepted: 05/07/2024] [Indexed: 06/05/2024]
Abstract
Directing self-assembly of photopolymerizable systems is advantageous for controlling polymer nanostructure and material properties, but developing techniques for inducing ordered structure remains challenging. In this work, well-defined diblock or random copolymers were incorporated into cationic photopolymerizable epoxy systems to investigate the impact of copolymer architecture on self-assembly and phase separated nanostructures. Copolymers consisting of poly(hydroxyethyl acrylate)-x-(butyl acrylate) were prepared using photoiniferter polymerization to control functional group placement and molecular weight/polydispersity. Prepolymer configuration and concentration induced distinctly different effects on the resin flow and photopolymerization kinetics. The diblock copolymer self-assembled into nanostructured phases within the resin matrix, whereas the random copolymer formed an isotropic mixture. Rapid photopolymerization and ambient temperature conditions during cure facilitated retention of the self-assembled phases, leading to considerably different composite morphology and thermomechanical behavior. Increased loading of the diblock copolymer induced long-range ordered cocontinuous structures. Even with nearly identical prepolymer composition, controlled nanophase separation resulted in significantly enhanced tensile properties relative to those of the isotropic system. This work demonstrates that controlling phase separation with a block copolymer architecture allows access to nanostructured photopolymers with unique and enhanced properties.
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Affiliation(s)
- Tanner
L. Grover
- Department of Chemical and
Biochemical Engineering, University of Iowa, 4133 Seamans Center, Iowa City, Iowa 52242, United States
| | - C. Allan Guymon
- Department of Chemical and
Biochemical Engineering, University of Iowa, 4133 Seamans Center, Iowa City, Iowa 52242, United States
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3
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Jheng LC, Chang TY, Fan CT, Hsieh TH, Hsieh FM, Huang WJ. Toughening of epoxy thermosets by self-assembled nanostructures of amphiphilic comb-like random copolymers. RSC Adv 2023; 13:33484-33494. [PMID: 38025865 PMCID: PMC10646570 DOI: 10.1039/d3ra06349f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 11/09/2023] [Indexed: 12/01/2023] Open
Abstract
Amphiphilic comb-like random copolymers synthesized from poly(ethylene glycol) methyl ether methacrylate (PEGMMA) and stearyl methacrylate (SMA) with PEGMMA contents ranging between 30 wt% and 25 wt% were demonstrated to self-assemble into various well-defined nanostructures, including spherical micelles, wormlike micelles, and vesicle-like nanodomains, in anhydride-cured epoxy thermosets. In addition, the polymer blends of the comb-like random copolymer and poly(stearyl methacrylate) were prepared and incorporated into epoxy thermosets to form irregularly shaped nanodomains. Our research findings indicate that both the comb-like random copolymers and polymer blends are suitable as toughening modifiers for epoxy. When added at a concentration of 5 wt%, both types of modifiers lead to substantial improvements in the tensile toughness (>289%) and fracture toughness of epoxy thermosets, with minor reductions in their elastic modulus (<16%) and glass transition temperature (<6.1 °C). The fracture toughness evaluated in terms of the critical stress intensity factor (KIC) and the strain energy release rate (GIC) increased by more than 67% and 131% for the modified epoxy thermosets containing comb-like random copolymers.
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Affiliation(s)
- Li-Cheng Jheng
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology Kaohsiung Taiwan ROC +886 7 3830674 +886 7 3814526 ext.15148
| | - Ting-Yu Chang
- Department of Mold and Die Engineering, National Kaohsiung University of Science and Technology Kaohsiung Taiwan ROC
| | - Chin-Ting Fan
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology Kaohsiung Taiwan ROC +886 7 3830674 +886 7 3814526 ext.15148
| | - Tsung-Han Hsieh
- Department of Mold and Die Engineering, National Kaohsiung University of Science and Technology Kaohsiung Taiwan ROC
| | - Feng-Ming Hsieh
- Material and Chemical Research Laboratories, Industrial Technology Research Institute Hsinchu Taiwan ROC
| | - Wan-Ju Huang
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology Kaohsiung Taiwan ROC +886 7 3830674 +886 7 3814526 ext.15148
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Nanostructuring Biobased Epoxy Resin with PEO-PPO-PEO Block Copolymer. Polymers (Basel) 2023; 15:polym15051216. [PMID: 36904457 PMCID: PMC10007555 DOI: 10.3390/polym15051216] [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: 02/01/2023] [Revised: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 03/04/2023] Open
Abstract
A biobased diglycidyl ether of vanillin (DGEVA) epoxy resin was nanostructured by poly(ethylene oxide-b-propylene oxide-b-ethylene oxide) (PEO-PPO-PEO) triblock copolymer. Due to the miscibility/immiscibility properties of the triblock copolymer in DGEVA resin, different morphologies were obtained depending on the triblock copolymer amount. A hexagonally packed cylinder morphology was kept until reaching 30 wt% of PEO-PPO-PEO content, while a more complex three-phase morphology was obtained for 50 wt%, in which large worm-like PPO domains appear surrounded by two different phases, one of them rich in PEO and another phase rich in cured DGEVA. UV-vis measurements show that the transmittance is reduced with the increase in triblock copolymer content, especially at 50 wt%, probably due to the presence of PEO crystals detected by calorimetry.
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5
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Direct visualization of stretch-induced phase separation in methoxy silyl-terminated polypropylene oxide/epoxy resin-type polymer alloys via AFM nanomechanics: A toughening mechanism. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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6
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Mei H, Hu J, Gao Y, Li L, Zheng S. Incorporation of crosslinked polydicyclopentadiene nanoparticles into epoxy thermosets via ring opening metathesis polymerization-induced self-assembly. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Sajjad M, Zhao Z, Wahid U, Zhu X, Zhang C. Inhibition of plasticizing effect in nanostructured epoxy thermosets toughened with SEBS-g-PEG copolymers. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Gutiérrez González J, Fernández Leyes MD, Ritacco HA, Schroeder WF, Zucchi IA. Long PEO-based nanoribbons generated in a polystyrene matrix through reaction-induced microphase separation followed by a fast crystallization process. SOFT MATTER 2021; 17:2279-2289. [PMID: 33475128 DOI: 10.1039/d0sm02058c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A dispersion of elongated nanostructures with a high aspect ratio in polymer matrices has been reported to provide a material with valuable properties such as mechanical strength, barrier effect and shape memory, among others. In this study, we show the procedure to achieve a distribution of elongated crystalline nanodomains in a PS matrix employing the self-assembly of amphiphilic block copolymers (BCP). The selected BCP was polystyrene-block-polyethylene oxide (PS-b-PEO). It was dissolved at 10 wt% in a styrene (St) monomer and the blend was slowly photopolymerized over four days at room temperature, until the reaction was arrested by vitrification. This blend was initially homogeneous and nanostructuration took place in an early stage of the polymerization as a result of the microphase separation (MS) of PEO blocks. Due to its high tendency to crystallize, demixed PEO blocks crystallized almost concomitantly with MS triggering the growing of the nanostructures. Thus, the time window between the onset of crystallization and the vitrification of the matrix was almost four days, allowing all micelles to have the opportunity to couple to a growing nanostructure. As a result, a population of nanoribbons with average lengths surpassing 10 μm dispersed in a PS matrix was obtained. It was demonstrated that these ribbon-like nanostructures are preserved as long as the heating temperature is located below the Tg of the matrix. If the material is heated above this temperature, softening of the matrix allows the breakup of the molten PEO nanoribbons due to Plateau-Rayleigh instability.
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Affiliation(s)
- Jessica Gutiérrez González
- Institute of Materials Science and Technology (INTEMA), University of Mar del Plata and National Research Council (CONICET), Av. Cristóbal Colón 10850, B7606WV Mar del Plata, Argentina.
| | - Marcos D Fernández Leyes
- Departamento de Física, Universidad Nacional del Sur (UNS), Instituto de Física del Sur - IFISUR (UNS-CONICET), Bahía Blanca, Argentina
| | - Hernán A Ritacco
- Departamento de Física, Universidad Nacional del Sur (UNS), Instituto de Física del Sur - IFISUR (UNS-CONICET), Bahía Blanca, Argentina
| | - Walter F Schroeder
- Institute of Materials Science and Technology (INTEMA), University of Mar del Plata and National Research Council (CONICET), Av. Cristóbal Colón 10850, B7606WV Mar del Plata, Argentina.
| | - Ileana A Zucchi
- Institute of Materials Science and Technology (INTEMA), University of Mar del Plata and National Research Council (CONICET), Av. Cristóbal Colón 10850, B7606WV Mar del Plata, Argentina.
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10
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Liu DY, Krogstad DV. Self-Assembly and Phase Transformation of Block Copolymer Nanostructures in Ionic Liquid-Cured Epoxy. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02214] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Deborah Y. Liu
- Applied Research Institute, University of Illinois at Urbana-Champaign, Champaign, Illinois 61820-0910, United States
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Champaign, Illinois 61820-0910, United States
| | - Daniel V. Krogstad
- Applied Research Institute, University of Illinois at Urbana-Champaign, Champaign, Illinois 61820-0910, United States
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Champaign, Illinois 61820-0910, United States
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11
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Lequieu J, Magenau AJD. Reaction-induced phase transitions with block copolymers in solution and bulk. Polym Chem 2021. [DOI: 10.1039/d0py00722f] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Reaction-induced phase transitions use chemical reactions to drive macromolecular organisation and self-assembly. This review highlights significant and recent advancements in this burgeoning field.
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Affiliation(s)
- Joshua Lequieu
- Department of Chemical and Biological Engineering
- Drexel University
- Philadelphia
- USA
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12
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Li L, Ge W, Zhao B, Adeel M, Mei H, Zheng S. Polyhydroxyurethane thermosets from novolac epoxide: Synthesis and its nanostructured blends with poly(trifluoroethylacrylate)-block-poly(N-vinylpyrrolidone) diblock copolymer. POLYMER 2021. [DOI: 10.1016/j.polymer.2020.123314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Nanostructured thermosets involving epoxy and poly(ionic liquid)-Containing diblock copolymer. POLYMER 2021. [DOI: 10.1016/j.polymer.2020.123293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Zhang P, Zhao Y, Yu R, Liao J. Confined crystallization and degradation of six-arm star PCL with core of cyclotriphosphazene in epoxy thermosets. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Zhang T, Chang G, Guo Q. Thermoreversible Polymer Gels in DMF Formed from Charge- and Crystallization-Induced Assembly. Polymers (Basel) 2020; 12:E2056. [PMID: 32927632 PMCID: PMC7570139 DOI: 10.3390/polym12092056] [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: 08/19/2020] [Revised: 09/04/2020] [Accepted: 09/06/2020] [Indexed: 11/17/2022] Open
Abstract
Polymer organogels formed through dynamic interactions are interesting for various applications. The fabrication of polymer organogels in polar solvents through ionic interaction is rare, although such organogels in non-polar organic solvents have been well studied. Herein, polymer organogels in a polar solvent N,N-dimethyl formamide (DMF) were fabricated from a triblock copolymer, poly(4-vinyl pyridine)-block-poly(ethylene glycol)-block-poly(4-vinyl pyridine) (4VPm-EGn-4VPm), and a fluorinated surfactant, perfluorooctanoic acid (PFOA), and their microphase separation and properties were studied. Ordered microphase separation and the crystalline structures were revealed by small-angle X-ray scattering (SAXS) and wide-angle X-ray scattering (WAXS), respectively. All the 4VPm-EGn-4VPm/PFOA organogels are sensitive to temperature, and the ratio of PFOA to pyridine groups reversibly. The polymer organogels are also responsive to triethylamine and triethylammonium acetate.
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Affiliation(s)
- Tao Zhang
- College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
- Institute for Frontier Materials, Deakin University, Locked Bag 20000, Geelong, Victoria 3220, Australia;
| | - Guangtao Chang
- College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Qipeng Guo
- Institute for Frontier Materials, Deakin University, Locked Bag 20000, Geelong, Victoria 3220, Australia;
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Adeel M, Zhao B, Xu S, Zheng S. Investigation of Azobenzene Photoisomerization Effect on Morphologies and Properties of Nanostructured Thermosets Involving Epoxy and a Diblock Copolymer. J Phys Chem B 2019; 123:10110-10123. [PMID: 31644292 DOI: 10.1021/acs.jpcb.9b08017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This work highlights the effect of azobenzene photoisomerization on the morphologies and properties of the nanostructured thermosets involving epoxy and a diblock copolymer. First, a diblock copolymer composed of poly(ethylene oxide) (PEO) and poly(6-(4-(4-cyanophenylazo)phenoxy)hexyl methacrylate) (PCPHM) was synthesized, and this diblock copolymer was composed of an epoxy-philic block (i.e., PEO) and an azobenzene moiety-beating block (viz., PCPHM). This diblock copolymer was introduced into epoxy to obtain the nanostructured thermosets via reaction-induced microphase separation approach. To control the configuration of azobenzene moieties of the PCPHM block, the curing reactions were performed in the absence and/or presence of ultraviolet (UV) irradiation, respectively. It was found that, without UV irradiation, the PCPHM microdomains were generated with the trans isomers of azobenzene. Under UV irradiation, however, the PCPHM microdomains were formed with the cis configuration of azobenzene moieties. The ultraviolet-visible light (UV-vis) spectroscopy showed that the trans and cis configurations of azobenzene moieties were significantly fixed with the occurrence of curing reactions. The photoluminescent measurements showed that the nanostructured thermosets with trans-azobenzene moieties can emit fluorescence, which was in sharp contrast to those with cis-azobenzene moieties. The results of small-angle X-ray and atomic force microscopy showed that the nanostructured thermosets with trans and cis isomers of azobenzene moieties had quite different morphologies. It was found that the sizes of the PCPHM microdomains with cis configuration of azobenzene moieties were significantly larger than those with trans configuration. The difference in configuration of azobenzene moieties also resulted in the difference in glass-transition temperatures and dielectric properties of the materials. The results suggest a new approach to modulate the morphologies and physical properties of the nanostructured thermosets by means of photoisomerization of azobenzene moieties.
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Affiliation(s)
- Muhammad Adeel
- Department of Polymer Science and Engineering and the State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , Shanghai 200240 , People's Republic of China
| | - Bingjie Zhao
- Department of Polymer Science and Engineering and the State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , Shanghai 200240 , People's Republic of China
| | - Sen Xu
- Department of Polymer Science and Engineering and the State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , Shanghai 200240 , People's Republic of China
| | - Sixun Zheng
- Department of Polymer Science and Engineering and the State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , Shanghai 200240 , People's Republic of China
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17
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Wang J, Zhang X, Jiang L, Qiao J. Advances in toughened polymer materials by structured rubber particles. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.101160] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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18
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Amphiphilic reactive poly(glycidyl methacrylate)-block-poly(dimethyl siloxane)-block-poly(glycidyl methacrylate) triblock copolymer for the controlling nanodomain morphology of epoxy thermosets. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.109236] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Kishi H, Yamada K, Kimura J. Control of nanostructures and fracture toughness of epoxy/acrylic block copolymer blends using in situ manipulation of the epoxy matrix reaction type. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.05.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Adeel M, Zhao B, Xu S, Zheng S. Fluorescence Enhancement Induced by Curing Reaction in Nanostructured Epoxy Thermosets Containing a Diblock Copolymer. J Phys Chem B 2019; 123:6282-6289. [PMID: 31313587 DOI: 10.1021/acs.jpcb.9b00925] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this work, a novel curing-induced fluorescence (FL) enhancement phenomenon in the nanostructuring process of epoxy thermosets was investigated. Toward this end, a diblock copolymer composed of poly(ethylene oxide) and poly(((4-vinylphenyl)ethene-1,1,2-triyl)tribenzene) (PTPEE) blocks was introduced into epoxy thermosets. Before curing reaction, the mixtures of epoxy precursors with the diblock copolymer only emitted feeble FL under ultra-visible (UV) irradiation. However, photoluminescence was significantly enhanced after the curing reaction was carried out. It was found that the novel FL enhancement phenomenon resulted from the aggregation-induced emission behavior of PTPEE blocks, which was triggered by curing reaction. In the nanostructured thermosets, the fluorophore blocks (viz. PTPEE) of this diblock copolymer were segregated into aggregates, that is, a reaction-induced microphase separation occurred. Owing to the generation of PTPEE microdomains, the epoxy nanocomposites significantly displayed the enhanced dielectric constants due to the promoted contribution from electron polarizations via π-π conjugation in the materials.
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Affiliation(s)
- Muhammad Adeel
- School of Chemistry and Chemical Engineering and the State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , Shanghai 200240 , P. R. China
| | - Bingjie Zhao
- School of Chemistry and Chemical Engineering and the State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , Shanghai 200240 , P. R. China
| | - Sen Xu
- School of Chemistry and Chemical Engineering and the State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , Shanghai 200240 , P. R. China
| | - Sixun Zheng
- School of Chemistry and Chemical Engineering and the State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , Shanghai 200240 , P. R. China
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21
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Schmarsow RN, Ceolín M, Zucchi IA, Schroeder WF. Core-crystalline nanoribbons of controlled length via diffusion-limited colloid aggregation. SOFT MATTER 2019; 15:4751-4760. [PMID: 31150039 DOI: 10.1039/c9sm00615j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
It has been previously reported that poly(ethylene) (PE)-based block copolymers self-assemble in certain thermosetting matrices to form a dispersion of one-dimensional (1D) nanoribbons. Such materials exhibit exceptional properties that originate from the high aspect ratio of the elongated nano-objects. However, the ability to prepare 1D assemblies with well-controlled dimensions is limited and represents a key challenge. Here, we demonstrate that the length of ribbon-like nanostructures can be precisely controlled by regulating the mobility of the matrix during crystallization of the core-forming PE block. The selected system to prove this concept was a poly(ethylene-block-ethylene oxide) (PE-b-PEO) block copolymer in an epoxy monomer based on diglycidyl ether of bisphenol A (DGEBA). The system was activated with a dual thermal- and photo-curing system, which allowed us to initiate the epoxy polymerization at 120 °C until a certain degree of conversion, stop the reaction by cooling to induce crystallization and micellar elongation, and then continue the polymerization at room temperature by visible-light irradiation. In this way, crystallization of PE blocks took place in a matrix whose mobility was regulated by the degree of conversion reached at 120 °C. The mechanism of micellar elongation was conceptualized as a diffusion-limited colloid aggregation process which was induced by crystallization of PE cores. This assertion was supported by the evidence obtained from in situ small-angle X-ray scattering (SAXS), in combination with differential scanning calorimetry (DSC) and transmission electron microscopy (TEM).
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Affiliation(s)
- Ruth N Schmarsow
- Institute of Materials Science and Technology (INTEMA), University of Mar del Plata and National Research Council (CONICET), Juan B. Justo 4302, 7600 Mar del Plata, Argentina.
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22
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Photopolymerization-assisted self-assembly as a strategy to obtain a dispersion of very high aspect ratio nanostructures in a polystyrene matrix. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.10.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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Tensile Properties, Fracture Mechanics Properties and Toughening Mechanisms of Epoxy Systems Modified with Soft Block Copolymers, Rigid TiO2 Nanoparticles and Their Hybrids. JOURNAL OF COMPOSITES SCIENCE 2018. [DOI: 10.3390/jcs2040072] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The effect of the hybridization of a triblock copolymer and a rigid TiO2 nanofiller on the tensile, fracture mechanics and thermo-mechanical properties of bisphenol F based epoxy resin were studied. The self-assembling block copolymer, constituted of a center block of poly (butyl acrylate) and two side blocks of poly (methyl) methacrylate-co-polar co-monomer was used as a soft filler, and TiO2 nanoparticles were employed as rigid modifiers. Toughening solely by block copolymers (BCP’s) led to the highest fracture toughness and fracture energy in the study, KIc = 2.18 MPa·m1/2 and GIc = 1.58 kJ/m2. This corresponds to a 4- and 16-fold improvement, respectively, over the neat reference epoxy system. However, a reduction of 15% of the tensile strength was observed. The hybrid nanocomposites, containing the same absolute amounts of modifiers, showed a maximum value of KIc = 1.72 MPa·m1/2 and GIc = 0.90 kJ/m2. Yet, only a minor reduction of 4% of the tensile strength was observed. The fracture toughness and fracture energy were co-related to the plastic zone size for all the modified systems. Finally, the analysis of the fracture surfaces revealed the toughening mechanisms of the nanocomposites.
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Ma J, Zhang F, Qiao Y, Xu Q, Zhou J, Zhang J. Vi-PDMS incorporated with protein-based coatings designed for permeability-enhanced applications. J Appl Polym Sci 2018. [DOI: 10.1002/app.46501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jianzhong Ma
- College of Bioresources Chemical and Materials Engineering; Shaanxi University of Science and Technology; Xi'an 710021 Shaanxi People's Republic of China
- Key Laboratory of Leather Cleaner Production, China National Light Industry; Xi'an 710054 Shaanxi Province People's Republic of China
| | - Fan Zhang
- College of Bioresources Chemical and Materials Engineering; Shaanxi University of Science and Technology; Xi'an 710021 Shaanxi People's Republic of China
- Key Laboratory of Leather Cleaner Production, China National Light Industry; Xi'an 710054 Shaanxi Province People's Republic of China
| | - Yinghuan Qiao
- College of Bioresources Chemical and Materials Engineering; Shaanxi University of Science and Technology; Xi'an 710021 Shaanxi People's Republic of China
- Key Laboratory of Leather Cleaner Production, China National Light Industry; Xi'an 710054 Shaanxi Province People's Republic of China
| | - Qunna Xu
- College of Bioresources Chemical and Materials Engineering; Shaanxi University of Science and Technology; Xi'an 710021 Shaanxi People's Republic of China
- Key Laboratory of Leather Cleaner Production, China National Light Industry; Xi'an 710054 Shaanxi Province People's Republic of China
| | - Jianhua Zhou
- College of Bioresources Chemical and Materials Engineering; Shaanxi University of Science and Technology; Xi'an 710021 Shaanxi People's Republic of China
- Key Laboratory of Leather Cleaner Production, China National Light Industry; Xi'an 710054 Shaanxi Province People's Republic of China
| | - Jing Zhang
- School of Arts and Sciences; Shaanxi University of Science and Technology; Xi'an 710021 Shaanxi Province People's Republic of China
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25
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Heng Z, Zhang H, Chen Y, Zou H, Liang M. Controllable design of nanostructure in block copolymer reinforced epoxy composites. J Appl Polym Sci 2018. [DOI: 10.1002/app.46362] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhengguang Heng
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Haoruo Zhang
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Yang Chen
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Huawei Zou
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Mei Liang
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
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26
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Xiang Y, Li L, Zheng S. Morphologies and dielectric properties of epoxy thermosets containing poly(N-vinylcarbazole), fullerene-C60 and their charge transfer complex nanophases. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.01.057] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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27
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Huang CF, Chen WH, Aimi J, Huang YS, Venkatesan S, Chiang YW, Huang SH, Kuo SW, Chen T. Synthesis of well-defined PCL-b-PnBA-b-PMMA ABC-type triblock copolymers: toward the construction of nanostructures in epoxy thermosets. Polym Chem 2018. [DOI: 10.1039/c8py01357h] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel PCL-b-PnBA-b-PMMA was designed and applied to construct ordered nanostructures within epoxy thermosets.
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Affiliation(s)
- Chih-Feng Huang
- Department of Chemical Engineering
- National Chung Hsing University
- Taichung 402-27
- Taiwan
- Research Center for Sustainable Energy and Nanotechnology
| | - Wen-Hua Chen
- Department of Chemical Engineering
- National Chung Hsing University
- Taichung 402-27
- Taiwan
| | - Junko Aimi
- Molecular Design & Function Group
- Research Center for Functional Materials
- National Institute for Materials Science
- Tsukuba
- Japan
| | - Yi-Shen Huang
- Department of Chemical Engineering
- National Chung Hsing University
- Taichung 402-27
- Taiwan
| | - Sathesh Venkatesan
- Department of Chemical Engineering
- National Chung Hsing University
- Taichung 402-27
- Taiwan
| | - Yeo-Wan Chiang
- Department of Materials and Optoelectronic Science
- Center for Nanoscience and Nanotechnology
- National Sun Yat-Sen University
- Kaohsiung 804-24
- Taiwan
| | - Shih-Hung Huang
- Department of Materials and Optoelectronic Science
- Center for Nanoscience and Nanotechnology
- National Sun Yat-Sen University
- Kaohsiung 804-24
- Taiwan
| | - Shiao-Wei Kuo
- Department of Materials and Optoelectronic Science
- Center for Nanoscience and Nanotechnology
- National Sun Yat-Sen University
- Kaohsiung 804-24
- Taiwan
| | - Tao Chen
- Key Laboratory of Bio-Based Polymeric Materials Technology and Application of Zhejiang Province
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
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28
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Xiang Y, Xu S, Zheng S. Epoxy toughening via formation of polyisoprene nanophases with amphiphilic diblock copolymer. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2017.11.032] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Heng Z, Li M, Li Y, Chen Y, Zou H, Liang M. Spontaneous Approach To Prepare Damping Structural Integration Materials via Gradient Plasticization Mechanism at Nanometer Scale. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b03509] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhengguang Heng
- The
State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Muxuan Li
- The
State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Yi Li
- System Engineering Institute of Sichuan Aerospace, Chengdu 610065, China
| | - Yang Chen
- The
State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Huawei Zou
- The
State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Mei Liang
- The
State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
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30
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31
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Cong H, Xu S, Zheng S. Synthesis and microphase separation behavior of random, mixed cylindrical brush copolymers bearing polystyrene and poly(ε-caprolactone) side chains. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-017-2001-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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32
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Carrasco-Hernandez S, Gutierrez J, Tercjak A. PE-b-PEO block copolymer nanostructured thermosetting systems as template for TiO 2 nanoparticles. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.06.044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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33
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Klingler A, Wetzel B. Fatigue crack propagation in triblock copolymer toughened epoxy nanocomposites. POLYM ENG SCI 2017. [DOI: 10.1002/pen.24558] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Andreas Klingler
- Institute for Composite Materials (IVW GmbH); University of Kaiserslautern, Erwin-Schrödinger-Straße; Build. 58 Kaiserslautern 67655 Germany
| | - Bernd Wetzel
- Institute for Composite Materials (IVW GmbH); University of Kaiserslautern, Erwin-Schrödinger-Straße; Build. 58 Kaiserslautern 67655 Germany
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34
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Peng W, Xu S, Li L, Zhang C, Zheng S. Organic-Inorganic Nanocomposites via Self-Assembly of an Amphiphilic Triblock Copolymer Bearing a Poly(butadiene-g-POSS) Subchain in Epoxy Thermosets: Morphologies, Surface Hydrophobicity, and Dielectric Properties. J Phys Chem B 2016; 120:12003-12014. [PMID: 27934400 DOI: 10.1021/acs.jpcb.6b08026] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Organic-inorganic nanocomposites composed of polyhedral oligomeric silsesquioxane (POSS) and epoxy resin were prepared via self-assembly of an amphiphilic triblock copolymer bearing a poly(POSS) midblock in epoxy thermosets. First, this organic-inorganic amphiphilic triblock copolymer was synthesized via hydrosilylation of heptaphenylhydro POSS with an existing triblock copolymer containing a short polybutadiene midblock. It was found that this novel amphiphilic block copolymer can self-assemble into nanophases in epoxy thermosets. In the presence of preformed nanophases, the curing reaction was performed, and the organic-inorganic nanocomposites containing poly(POSS) microdomains were thus obtained. Compared with plain epoxy, the as-obtained thermosets exhibited enhanced surface hydrophobicity; the enhanced surface hydrophobicity is attributed to enrichment of the POSS component at the surface of the materials. Owing to the formation of poly(POSS) microdomains, the dielectric constants of the materials significantly reduced, whereas the dielectric loss remained almost unchanged.
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Affiliation(s)
- Wenjun Peng
- Department of Polymer Science and Engineering and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University , Shanghai 200240, P. R. China
| | - Sen Xu
- Department of Polymer Science and Engineering and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University , Shanghai 200240, P. R. China
| | - Lei Li
- Department of Polymer Science and Engineering and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University , Shanghai 200240, P. R. China
| | - Chongyin Zhang
- Department of Polymer Science and Engineering and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University , Shanghai 200240, P. R. China
| | - Sixun Zheng
- Department of Polymer Science and Engineering and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University , Shanghai 200240, P. R. China
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35
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Asada M, Oshita S, Morishita Y, Nakashima Y, Kunimitsu Y, Kishi H. Effect of miscible PMMA chain length on disordered morphologies in epoxy/PMMA-b-PnBA-b-PMMA blends by in situ simultaneous SAXS/DSC. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.10.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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Parameswaranpillai J, Krishnan Sidhardhan S, Jose S, Siengchin S, Pionteck J, Magueresse A, Grohens Y, Hameed N. Reaction-induced phase separation and resulting thermomechanical and surface properties of epoxy resin/poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) blends cured with 4,4′-diaminodiphenylsulfone. J Appl Polym Sci 2016. [DOI: 10.1002/app.44406] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Jyotishkumar Parameswaranpillai
- Department of Polymer Science and Rubber Technology; Cochin University of Science and Technology; Cochin 682022 Kerala India
| | - Sisanth Krishnan Sidhardhan
- Department of Polymer Science and Rubber Technology; Cochin University of Science and Technology; Cochin 682022 Kerala India
| | - Seno Jose
- Government College; Kottayam 686013 Kerala India
| | - Suchart Siengchin
- Department of Materials and Production Engineering; King Mongkut's University of Technology North Bangkok 1518 Pracharaj 1, Wongsawang Road; Bangsue Bangkok 10800 Thailand
| | - Jürgen Pionteck
- Leibniz Institute of Polymer Research Dresden; Hohe Strasse 6 01069 Dresden Germany
| | | | - Yves Grohens
- FRE CNRS 3744, IRDL, Univ. Bretagne Sud; 56100 Lorient France
| | - Nishar Hameed
- Factory of the Future, Swinburne University of Technology; Hawthorn Australia
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37
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Xiang Y, Li L, Zheng S. Photophysical and dielectric properties of nanostructured epoxy thermosets containing poly(N-vinylcarbazole) nanophases. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.06.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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38
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Heng Z, Li R, Chen Y, Zou H, Liang M. Preparation of damping structural integration materials via the formation of nanostructure in triblock copolymer modified epoxy resins. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-1019-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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39
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He R, Zhan X, Zhang Q, Zhang G, Chen F. Control of inclusion size and toughness by reactivity of multiblock copolymer in epoxy composites. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.04.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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40
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Sun Y, Liu W, Tan J, Wang H. Nano- and micro-structured random copolymer modified cycloaliphatic epoxy resins for use as light-emitting diode encapsulation. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2016. [DOI: 10.1080/10601325.2016.1143313] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Yang Sun
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou, China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Weiqu Liu
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou, China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences, Guangzhou, China
| | - Jianquan Tan
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou, China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Honglei Wang
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou, China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
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41
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A reactive polystyrene-block-polyisoprene star copolymer as a toughening agent in an epoxy thermoset. Colloid Polym Sci 2016. [DOI: 10.1007/s00396-015-3810-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Sun J, Li H, Wang C, Yuan D, Stubbs LP, He C. The Effect of Residual SolventN,N′-Dimethylformamide on the Curing Reaction and Mechanical Properties of Epoxy and Lignin Epoxy Composites. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201500453] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jiaotong Sun
- Department of Materials Science & Engineering; National University of Singapore; 9 Engineering Drive 1 117575 Singapore
| | - Hui Li
- Department of Materials Science & Engineering; National University of Singapore; 9 Engineering Drive 1 117575 Singapore
| | - Cun Wang
- Institute of Chemical and Engineering Sciences; Agency for Science, Technology and Research (A*STAR); 1 Pesek Road Jurong Island 627833 Singapore
| | - Du Yuan
- Department of Materials Science & Engineering; National University of Singapore; 9 Engineering Drive 1 117575 Singapore
| | - Ludger P. Stubbs
- Institute of Chemical and Engineering Sciences; Agency for Science, Technology and Research (A*STAR); 1 Pesek Road Jurong Island 627833 Singapore
| | - Chaobin He
- Department of Materials Science & Engineering; National University of Singapore; 9 Engineering Drive 1 117575 Singapore
- Institute of Materials Research and Engineering; Agency for Science, Technology and Research (A*STAR); 3 Research Link 117602 Singapore
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43
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Li J, Li L, Xiang Y, Zheng S. Nanostructured Epoxy Thermosets Containing Poly(vinylidene fluoride): Preparation, Morphologies, and Dielectric Properties. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.5b04057] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jingang Li
- Department
of Polymer Science
and Engineering and the State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Lei Li
- Department
of Polymer Science
and Engineering and the State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Yixin Xiang
- Department
of Polymer Science
and Engineering and the State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Sixun Zheng
- Department
of Polymer Science
and Engineering and the State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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44
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Liang L, Wang LW, Shen JW. The self-assembly mechanism of tetra-peptides from the motif of β-amyloid peptides: a combined coarse-grained and all-atom molecular dynamics simulation. RSC Adv 2016. [DOI: 10.1039/c6ra18204f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Understanding the self-assembly mechanisms of tetra-peptides from Aβ-peptides into different nanostructures.
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Affiliation(s)
- Lijun Liang
- College of Life Information Science and Instrument Engineering
- Hangzhou Dianzi University
- Hangzhou
- People’s Republic of China
| | - Li-Wei Wang
- School of Medicine
- Hangzhou Normal University
- Hangzhou 310016
- People’s Republic of China
| | - Jia-Wei Shen
- School of Medicine
- Hangzhou Normal University
- Hangzhou 310016
- People’s Republic of China
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45
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Ligon-Auer SC, Schwentenwein M, Gorsche C, Stampfl J, Liska R. Toughening of photo-curable polymer networks: a review. Polym Chem 2016. [DOI: 10.1039/c5py01631b] [Citation(s) in RCA: 219] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review surveys relevant scientific papers and patents on the development of crosslinked epoxies and also photo-curable polymers based on multifunctional acrylates with improved toughness.
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Affiliation(s)
- Samuel Clark Ligon-Auer
- Institute of Applied Synthetic Chemistry
- Technische Universität Wien
- 1060 Vienna
- Austria
- Christian Doppler Laboratory for Digital and Restorative Dentistry
| | | | - Christian Gorsche
- Institute of Applied Synthetic Chemistry
- Technische Universität Wien
- 1060 Vienna
- Austria
- Christian Doppler Laboratory for Digital and Restorative Dentistry
| | - Jürgen Stampfl
- Christian Doppler Laboratory for Digital and Restorative Dentistry
- Technische Universität Wien
- Vienna
- Austria
- Institute of Materials Science and Technology
| | - Robert Liska
- Institute of Applied Synthetic Chemistry
- Technische Universität Wien
- 1060 Vienna
- Austria
- Christian Doppler Laboratory for Digital and Restorative Dentistry
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46
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Puig J, Zucchi IA, Ceolín M, Schroeder WF, Williams RJJ. Evolution of morphologies of a PE-b-PEO block copolymer in an epoxy solvent induced by polymerization followed by crystallization-driven self-assembly of PE blocks during cooling. RSC Adv 2016. [DOI: 10.1039/c6ra03019j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
This work reports how to generate complex nanostructures in an epoxy network by combining polymerization-induced nanostructuration with crystallization-driven self-assembly of a semicrystalline block copolymer.
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Affiliation(s)
- Julieta Puig
- Institute of Materials Science and Technology (INTEMA)
- University of Mar del Plata and National Research Council (CONICET)
- 7600 Mar del Plata
- Argentina
| | - Ileana A. Zucchi
- Institute of Materials Science and Technology (INTEMA)
- University of Mar del Plata and National Research Council (CONICET)
- 7600 Mar del Plata
- Argentina
| | - Marcelo Ceolín
- Instituto de Investigaciones Físicoquímicas Teóricas y Aplicadas (INIFTA)
- Universidad Nacional de La Plata
- CONICET
- La Plata
- Argentina
| | - Walter F. Schroeder
- Institute of Materials Science and Technology (INTEMA)
- University of Mar del Plata and National Research Council (CONICET)
- 7600 Mar del Plata
- Argentina
| | - Roberto J. J. Williams
- Institute of Materials Science and Technology (INTEMA)
- University of Mar del Plata and National Research Council (CONICET)
- 7600 Mar del Plata
- Argentina
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47
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Cai S, Weng Z, Zheng Y, Zhao B, Gao Z, Gao C. High porosity microspheres with functional groups synthesized by thiol–yne click suspension polymerization. Polym Chem 2016. [DOI: 10.1039/c6py01824f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
We employed a combination of thiol–yne click polymerization and suspension polymerization for the synthesis of porous epoxy-functionalized polymeric microspheres.
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Affiliation(s)
- Shengying Cai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province
- Zhejiang University
- Hangzhou 310027
| | - Zhulin Weng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province
- Zhejiang University
- Hangzhou 310027
| | - Yaochen Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province
- Zhejiang University
- Hangzhou 310027
| | - Bo Zhao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province
- Zhejiang University
- Hangzhou 310027
| | - Zhengguo Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province
- Zhejiang University
- Hangzhou 310027
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province
- Zhejiang University
- Hangzhou 310027
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48
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Heng Z, Zeng Z, Zhang B, Luo Y, Luo J, Chen Y, Zou H, Liang M. Enhancing mechanical performance of epoxy thermosets via designing a block copolymer to self-organize into “core–shell” nanostructure. RSC Adv 2016. [DOI: 10.1039/c6ra15283j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A rigid-flexible amphiphilic pentablock copolymer, polystyrene-block-poly(ε-caprolactone)-block-polydimethylsiloxane-block-poly(ε-caprolactone)-block-polystyrene (PS-PCL-PDMS-PCL-PS, SLDLS), was designed.
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Affiliation(s)
- Zhengguang Heng
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Sichuan University
- Chengdu 610065
- China
| | - Zhong Zeng
- Safety Environment Quality Surveillance and Inspection Research Institute of CNPC Chuanqing Drilling & Exploration Corporation
- Chengdu 618300
- China
| | - Bin Zhang
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Sichuan University
- Chengdu 610065
- China
| | - Yinfu Luo
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Sichuan University
- Chengdu 610065
- China
| | - Jiemin Luo
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Sichuan University
- Chengdu 610065
- China
| | - Yang Chen
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Sichuan University
- Chengdu 610065
- China
| | - Huawei Zou
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Sichuan University
- Chengdu 610065
- China
| | - Mei Liang
- State Key Laboratory of Polymer Materials Engineering
- Polymer Research Institute of Sichuan University
- Sichuan University
- Chengdu 610065
- China
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49
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Cong H, Li L, Zheng S. Formation of nanophases in epoxy thermosets containing ABC and ACB triblock copolymers: A comparative investigation. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.10.064] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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50
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Salim NV, Hameed N, Fox BL, Hanley TL. Novel Approach to Trigger Nanostructures in Thermosets Using Competitive Hydrogen-Bonding-Induced Phase Separation (CHIPS). Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00687] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nisa V. Salim
- Carbon Nexus, Institute for Frontier Materials, Deakin University, Geelong, 3220, Australia
| | - Nishar Hameed
- Carbon Nexus, Institute for Frontier Materials, Deakin University, Geelong, 3220, Australia
| | - Bronwyn L. Fox
- Carbon Nexus, Institute for Frontier Materials, Deakin University, Geelong, 3220, Australia
| | - Tracey L. Hanley
- Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee
DC, NSW 2232, Australia
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