201
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Ionic transport and barrier effect of anodic oxide layer in a solid-state Al2O3 capacitor under high electric field. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2016.12.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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202
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Lambert S, Wagner M. Environmental performance of bio-based and biodegradable plastics: the road ahead. Chem Soc Rev 2017; 46:6855-6871. [DOI: 10.1039/c7cs00149e] [Citation(s) in RCA: 340] [Impact Index Per Article: 48.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This review provides a critical discussion as to the future direction of plastic materials, including balancing factors such as biodegradability and longevity, effects of additive compounds, feedstock developments, and environmental considerations.
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Affiliation(s)
- Scott Lambert
- Department Aquatic Ecotoxicology, Goethe University Frankfurt am Main, Max-von-Laue-Str. 13
- Frankfurt
- Germany
| | - Martin Wagner
- Department Aquatic Ecotoxicology, Goethe University Frankfurt am Main, Max-von-Laue-Str. 13
- Frankfurt
- Germany
- Department of Biology
- Norwegian University of Science and Technology (NTNU)
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203
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Kim C, Ejima H, Yoshie N. Non-swellable self-healing polymer with long-term stability under seawater. RSC Adv 2017. [DOI: 10.1039/c7ra01778b] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
A non-swellable and highly self-healable polymer in seawater is obtained. Dynamic crosslinking of catechol-based polymers with p-phenyldiboronic acid through non-ionic boronate ester bonds is the key to realizing these two properties simultaneously.
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Affiliation(s)
- Chaehoon Kim
- Institute of Industrial Science
- The University of Tokyo
- Meguro-ku
- Japan
| | - Hirotaka Ejima
- Department of Materials Engineering
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Naoko Yoshie
- Institute of Industrial Science
- The University of Tokyo
- Meguro-ku
- Japan
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204
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Huang CH, Liu YL. Self-healing polymeric materials for membrane separation: an example of a polybenzimidazole-based membrane for pervaporation dehydration on isopropanol aqueous solution. RSC Adv 2017. [DOI: 10.1039/c7ra06644a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The demonstration of a self-healing material based separation membrane for pervaporation dehydration on liquid–liquid mixtures.
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Affiliation(s)
- Chien-Ho Huang
- Department of Chemical Engineering
- National Tsing Hua University
- 30013 Hsinchu
- Taiwan
| | - Ying-Ling Liu
- Department of Chemical Engineering
- National Tsing Hua University
- 30013 Hsinchu
- Taiwan
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205
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Sustainable Phenolic Fractions as Basis for Furfuryl Alcohol-Based Co-Polymers and Their Use as Wood Adhesives. Polymers (Basel) 2016; 8:polym8110396. [PMID: 30974673 PMCID: PMC6431995 DOI: 10.3390/polym8110396] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 10/28/2016] [Accepted: 11/07/2016] [Indexed: 11/25/2022] Open
Abstract
Furfuryl alcohol is a very interesting green molecule used in the production of biopolymers. In the present paper, the copolymerization in acid environment with natural, easily-available, phenolic derivatives is investigated. The processes of polymerization of the furfuryl alcohol with: (i) spent-liquor from the pulping industry and (ii) commercial tannin from acacia mimosa were investigated though viscometry and IR-spectroscopy. The curing kinetics of the formulations highlighted the importance of the amount of furfuryl alcohol and catalyst as well as the effect of temperature for both phenolic-furanic polymers. Evidence of covalent copolymerization has been observed through infrared spectrometry (FT-IR) combined with principal component analysis (PCA) and confirmed with additional solubility tests. These bio-based formulations were applied as adhesives for solid wood and particleboards with interesting results: at 180 °C, the spent-liquor furanic formulations allow wood bonding slightly with lower performance than PVA in dry conditions, while mixed formulations allow the gluing of particleboard with only satisfactory internal bonding tests.
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206
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Salehi E, Daraei P, Arabi Shamsabadi A. A review on chitosan-based adsorptive membranes. Carbohydr Polym 2016; 152:419-432. [DOI: 10.1016/j.carbpol.2016.07.033] [Citation(s) in RCA: 216] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 07/03/2016] [Accepted: 07/08/2016] [Indexed: 12/11/2022]
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207
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Bandodkar AJ, López CS, Vinu Mohan AM, Yin L, Kumar R, Wang J. All-printed magnetically self-healing electrochemical devices. SCIENCE ADVANCES 2016; 2:e1601465. [PMID: 27847875 PMCID: PMC5099985 DOI: 10.1126/sciadv.1601465] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 09/29/2016] [Indexed: 05/18/2023]
Abstract
The present work demonstrates the synthesis and application of permanent magnetic Nd2Fe14B microparticle (NMP)-loaded graphitic inks for realizing rapidly self-healing inexpensive printed electrochemical devices. The incorporation of NMPs into the printable ink imparts impressive self-healing ability to the printed conducting trace, with rapid (~50 ms) recovery of repeated large (3 mm) damages at the same or different locations without any user intervention or external trigger. The permanent and surrounding-insensitive magnetic properties of the NMPs thus result in long-lasting ability to repair extreme levels of damage, independent of ambient conditions. This remarkable self-healing capability has not been reported for existing man-made self-healing systems and offers distinct advantages over common capsule and intrinsically self-healing systems. The printed system has been characterized by leveraging crystallographic, magnetic hysteresis, microscopic imaging, electrical conductivity, and electrochemical techniques. The real-life applicability of the new self-healing concept is demonstrated for the autonomous repair of all-printed batteries, electrochemical sensors, and wearable textile-based electrical circuits, indicating considerable promise for widespread practical applications and long-lasting printed electronic devices.
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208
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Taylor DL, In Het Panhuis M. Self-Healing Hydrogels. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:9060-9093. [PMID: 27488822 DOI: 10.1002/adma.201601613] [Citation(s) in RCA: 678] [Impact Index Per Article: 84.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 06/03/2016] [Indexed: 05/21/2023]
Abstract
Over the past few years, there has been a great deal of interest in the development of hydrogel materials with tunable structural, mechanical, and rheological properties, which exhibit rapid and autonomous self-healing and self-recovery for utilization in a broad range of applications, from soft robotics to tissue engineering. However, self-healing hydrogels generally either possess mechanically robust or rapid self-healing properties but not both. Hence, the development of a mechanically robust hydrogel material with autonomous self-healing on the time scale of seconds is yet to be fully realized. Here, the current advances in the development of autonomous self-healing hydrogels are reviewed. Specifically, methods to test self-healing efficiencies and recoveries, mechanisms of autonomous self-healing, and mechanically robust hydrogels are presented. The trends indicate that hydrogels that self-heal better also achieve self-healing faster, as compared to gels that only partially self-heal. Recommendations to guide future development of self-healing hydrogels are offered and the potential relevance of self-healing hydrogels to the exciting research areas of 3D/4D printing, soft robotics, and assisted health technologies is highlighted.
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Affiliation(s)
- Danielle Lynne Taylor
- Soft Materials Group, School of Chemistry, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Marc In Het Panhuis
- Soft Materials Group, School of Chemistry, University of Wollongong, Wollongong, NSW, 2522, Australia.
- ARC Centre of Excellence for Electromaterials Science, AIIM Facility, University of Wollongong, Wollongong, NSW, 2522, Australia.
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209
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Qi X, Yang L, Zhu J, Hou Y, Yang M. Stiffer but More Healable Exponential Layered Assemblies with Boron Nitride Nanoplatelets. ACS NANO 2016; 10:9434-9445. [PMID: 27648668 DOI: 10.1021/acsnano.6b04482] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Self-healing ability and the elastic modulus of polymeric materials may seem conflicting because of their opposite dependence on chain mobility. Here, we show that boron nitride (BN) nanoplatelets can simultaneously enhance these seemingly contradictory properties in exponentially layer-by-layer-assembled nanocomposites as both surface coatings and free-standing films. On one hand, embedding hard BN nanoplatelets into a soft hydrogen bonding network can enhance the elastic modulus and ultimate strength through effective load transfer strengthened by the incorporation of interfacial covalent bonding; on the other hand, during a water-enabled self-healing process, these two-dimensional flakes induce an anisotropic diffusion, maintain the overall diffusion ability of polymers at low loadings, and can be "sealing" agents to retard the out-of-plane diffusion, thereby hampering polymer release into the solution. A detailed mechanism study supported by a theoretical model reveals the critical parameters for achieving a complete self-healing process. The insights gained from this work may be used for the design of high-performance smart materials based on other two-dimensional fillers.
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Affiliation(s)
- Xiaodong Qi
- Key Laboratory of Microsystems and Micronanostructures Manufacturing and ‡Center for Composite Materials and Structures, Harbin Institute of Technology , 2 Yikuang Street, Harbin 150080, China
| | - Lei Yang
- Key Laboratory of Microsystems and Micronanostructures Manufacturing and ‡Center for Composite Materials and Structures, Harbin Institute of Technology , 2 Yikuang Street, Harbin 150080, China
| | - Jiaqi Zhu
- Key Laboratory of Microsystems and Micronanostructures Manufacturing and ‡Center for Composite Materials and Structures, Harbin Institute of Technology , 2 Yikuang Street, Harbin 150080, China
| | - Ying Hou
- Key Laboratory of Microsystems and Micronanostructures Manufacturing and ‡Center for Composite Materials and Structures, Harbin Institute of Technology , 2 Yikuang Street, Harbin 150080, China
| | - Ming Yang
- Key Laboratory of Microsystems and Micronanostructures Manufacturing and ‡Center for Composite Materials and Structures, Harbin Institute of Technology , 2 Yikuang Street, Harbin 150080, China
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210
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Dasan YK, Bhat AH, Faiz A. Development and material properties of poly(lactic acid)/poly(3-hydroxybutyrate-co
−3-hydroxyvalerate)-based nanocrystalline cellulose nanocomposites. J Appl Polym Sci 2016. [DOI: 10.1002/app.44328] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Y. K. Dasan
- Department of Fundamental and Applied Sciences; Universiti Teknologi PETRONAS; Bandar Seri Iskandar Perak 32610 Malaysia
| | - A. H. Bhat
- Department of Fundamental and Applied Sciences; Universiti Teknologi PETRONAS; Bandar Seri Iskandar Perak 32610 Malaysia
| | - A. Faiz
- Department of Mechanical Engineering; Universiti Teknologi PETRONAS; Bandar Seri Iskandar Perak 32610 Malaysia
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211
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Liu H, Chung H. Self-Healing Properties of Lignin-Containing Nanocomposite: Synthesis of Lignin-graft-poly(5-acetylaminopentyl acrylate) via RAFT and Click Chemistry. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01028] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Hailing Liu
- Department of Chemical and
Biomedical Engineering, Florida State University, Tallahassee, Florida 32310, United States
| | - Hoyong Chung
- Department of Chemical and
Biomedical Engineering, Florida State University, Tallahassee, Florida 32310, United States
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212
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Prospects of conducting polymer and graphene as counter electrodes in dye-sensitized solar cells. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-1090-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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213
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214
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Yang JN. Comparative Effects of mEOC on the Structures and Properties of PP/SGF and PP/EOC/SGF Composite Foams. INT POLYM PROC 2016. [DOI: 10.3139/217.3171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
To improve the impact toughness of short glass fiber (SGF) reinforced polypropylene (PP) composite foams, maleic anhydride grafted ethylene-α-octene copolymer (mEOC) was employed as impact modifier and interfacial compatibilizer. And for comparison, mEOC was also introduced into PP/EOC/SGF composite foams. Then, the foaming qualities, interfacial structures and mechanical properties of samples against varying mEOC contents were examined and compared in detail. Results showed that adequate mEOC significantly improved the foamabilities of the composites, while the optimized mass fraction was 8% for PP/SGF composite foams and 3% for PP/EOC/SGF system. Increased mEOC facilitated the higher impact toughness, which was increased by 77% for PP/SGF composite foams, whereas only 5% for PP/EOC/SGF foams. However, the flexural strengths were just improved slightly, while compressive strengths decreased monotonically with mEOC for the investigated composite foams.
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Affiliation(s)
- J.-N. Yang
- College of Materials Science and Engineering , Anhui University of Science and Technology, Huainan , PRC
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215
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Zhang P, Ayaugbokor U, Ibekwe S, Jerro D, Pang S, Mensah P, Li G. Healing of polymeric artificial muscle reinforced ionomer composite by resistive heating. J Appl Polym Sci 2016. [DOI: 10.1002/app.43660] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Pengfei Zhang
- Department of Mechanical & Industrial EngineeringLouisiana State UniversityBaton Rouge Louisiana70803
| | | | - Samuel Ibekwe
- Department of Mechanical EngineeringSouthern UniversityBaton Rouge Louisiana70813
| | - Dwayne Jerro
- Department of Mechanical EngineeringSouthern UniversityBaton Rouge Louisiana70813
| | - Su‐Seng Pang
- Macau University of Science and TechnologyAvenida Wai LongTaipa MacauPeople's Republic of China
| | - Patrick Mensah
- Department of Mechanical EngineeringSouthern UniversityBaton Rouge Louisiana70813
| | - Guoqiang Li
- Department of Mechanical & Industrial EngineeringLouisiana State UniversityBaton Rouge Louisiana70803
- Department of Mechanical EngineeringSouthern UniversityBaton Rouge Louisiana70813
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216
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Tran TKN, Colomines G, Leroy E, Nourry A, Pilard JF, Deterre R. Rubber-based acrylate resins: An alternative for tire recycling and carbon neutral thermoset materials design. J Appl Polym Sci 2016. [DOI: 10.1002/app.43548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Thi Kieu Nhung Tran
- LUNAM Université, IUT de Nantes, CNRS, GEPEA, UMR 6144, OPERP; 2 Avenue du professeur Jean ROUXEL, BP 539 Carquefou 44475 France
| | - Gaël Colomines
- LUNAM Université, IUT de Nantes, CNRS, GEPEA, UMR 6144, OPERP; 2 Avenue du professeur Jean ROUXEL, BP 539 Carquefou 44475 France
| | - Eric Leroy
- LUNAM Université, CNRS, GEPEA, UMR 6144, CRTT, 37, Boulevard de l'Université; St Nazaire Cedex 44606 France
| | - Arnaud Nourry
- LUNAM Université, Université du Maine, UMR CNRS 6283, Institut des Molécules et Matériaux du Mans; Avenue Olivier Messiaen Le Mans Cedex 9 72085 France
| | - Jean-François Pilard
- LUNAM Université, Université du Maine, UMR CNRS 6283, Institut des Molécules et Matériaux du Mans; Avenue Olivier Messiaen Le Mans Cedex 9 72085 France
| | - Rémi Deterre
- LUNAM Université, IUT de Nantes, CNRS, GEPEA, UMR 6144, OPERP; 2 Avenue du professeur Jean ROUXEL, BP 539 Carquefou 44475 France
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217
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Synthesis of renewable isosorbide-based monomer and preparation of the corresponding thermosets. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2016.01.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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218
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Corobea MC, Muhulet O, Miculescu F, Antoniac IV, Vuluga Z, Florea D, Vuluga DM, Butnaru M, Ivanov D, Voicu SI, Thakur VK. Novel nanocomposite membranes from cellulose acetate and clay-silica nanowires. POLYM ADVAN TECHNOL 2016. [DOI: 10.1002/pat.3835] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Mihai Cosmin Corobea
- Polymer composites and nanocomposites team, Polymer Department; R&D National Institute for Chemistry and Petro chemistry - ICECHIM Bucharest; 6 Spy. Independence 202, district 6 Bucharest 060021 Romania
| | - Oana Muhulet
- Faculty of Applied Chemistry and Materials Science; University Polytechnic of Buchares; Str. Gheorghe Polis 1-7 Bucharest 011061 Romania
| | - Florin Miculescu
- Faculty of Materials Science; University Polytechnic of Bucharest; Splaiul Independentei 313 Bucharest Romania
| | - Iulian Vaile Antoniac
- Faculty of Materials Science; University Polytechnic of Bucharest; Splaiul Independentei 313 Bucharest Romania
| | - Zina Vuluga
- Polymer composites and nanocomposites team, Polymer Department; R&D National Institute for Chemistry and Petro chemistry - ICECHIM Bucharest; 6 Spy. Independence 202, district 6 Bucharest 060021 Romania
| | - Dorel Florea
- Polymer composites and nanocomposites team, Polymer Department; R&D National Institute for Chemistry and Petro chemistry - ICECHIM Bucharest; 6 Spy. Independence 202, district 6 Bucharest 060021 Romania
| | - Dumitru Mircea Vuluga
- Center for Organic Chemistry “C.D. Nenitescu” of Romanian Academy; 202B Splaiul Independentei 060023 Bucharest Romania
| | - Maria Butnaru
- Faculty of Medical Bioengineering; “Gr.T.Popa” University of Medicine and Pharmacy; 16 University Street 700115 Iasi Romania
| | - Daniela Ivanov
- “Petru Poni” Institute of Macromolecular Chemistry; Aleea Gr. Ghica Voda 41A 700487 Iasi Romania
| | - Stefan Ioan Voicu
- Faculty of Applied Chemistry and Materials Science; University Polytechnic of Buchares; Str. Gheorghe Polis 1-7 Bucharest 011061 Romania
| | - Vijay Kumar Thakur
- School of Mechanical and Materials Engineering; Washington State University; Pullman WA United States
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219
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Yao M, Chen J, Su Z, Peng Y, Zou P, Yao X. Anodic Oxidation in Aluminum Electrode by Using Hydrated Amorphous Aluminum Oxide Film as Solid Electrolyte under High Electric Field. ACS APPLIED MATERIALS & INTERFACES 2016; 8:11100-11107. [PMID: 27070754 DOI: 10.1021/acsami.6b00945] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Dense and nonporous amorphous aluminum oxide (AmAO) film was deposited onto platinized silicon substrate by sol-gel and spin coating technology. The evaporated aluminum film was deposited onto the AmAO film as top electrode. The hydrated AmAO film was utilized as a solid electrolyte for anodic oxidation of the aluminum electrode (Al) film under high electric field. The hydrated AmAO film was a high efficiency electrolyte, where a 45 nm thick Al film was anodized completely on a 210 nm thick hydrated AmAO film. The current-voltage (I-V) characteristics and breakdown phenomena of a dry and hydrated 210 nm thick AmAO film with a 150 nm thick Al electrode pad were studied in this work. Breakdown voltage of the dry and hydrated 210 nm thick AmAO film were 85 ± 3 V (405 ± 14 MV m(-1)) and 160 ± 5 V (762 ± 24 MV m(-1)), respectively. The breakdown voltage of the hydrated AmAO film increased about twice, owing to the self-healing behavior (anodic oxidation reaction). As an intuitive phenomenon of the self-healing behavior, priority anodic oxidation phenomena was observed in a 210 nm thick hydrated AmAO film with a 65 nm thick Al electrode pad. The results suggested that self-healing behavior (anodic oxidation reaction) was occurring nearby the defect regions of the films during I-V test. It was an effective electrical self-healing method, which would be able to extend to many other simple and complex oxide dielectrics and various composite structures.
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Affiliation(s)
- Manwen Yao
- Functional Materials Research Laboratory, School of Materials Science and Engineering, Tongji University , 4800 Cao-an Hwy., Shanghai 201804, China
| | - Jianwen Chen
- Functional Materials Research Laboratory, School of Materials Science and Engineering, Tongji University , 4800 Cao-an Hwy., Shanghai 201804, China
| | - Zhen Su
- Functional Materials Research Laboratory, School of Materials Science and Engineering, Tongji University , 4800 Cao-an Hwy., Shanghai 201804, China
| | - Yong Peng
- Functional Materials Research Laboratory, School of Materials Science and Engineering, Tongji University , 4800 Cao-an Hwy., Shanghai 201804, China
| | - Pei Zou
- Functional Materials Research Laboratory, School of Materials Science and Engineering, Tongji University , 4800 Cao-an Hwy., Shanghai 201804, China
| | - Xi Yao
- Functional Materials Research Laboratory, School of Materials Science and Engineering, Tongji University , 4800 Cao-an Hwy., Shanghai 201804, China
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220
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El-Sherbiny IM, El-Shibiny A, Salih E. Photo-induced green synthesis and antimicrobial efficacy of poly (ɛ-caprolactone)/curcumin/grape leaf extract-silver hybrid nanoparticles. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 160:355-63. [PMID: 27183490 DOI: 10.1016/j.jphotobiol.2016.04.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 04/27/2016] [Indexed: 10/21/2022]
Abstract
This study reports the photo-induced green synthesis and antimicrobial assessment of poly(ɛ-caprolactone)/curcumin/grape leaf extract-Ag hybrid nanoparticles (PCL/Cur/GLE-Ag NPs). PCL/Cur/GLE NPs were synthesized via emulsion-solvent evaporation in the presence of PVA as a capping agent, then used as active nano-supports for the green synthesis and stabilization of AgNPs on their surfaces. Both Cur and GLE were selected and incorporated into the PCL nano-supports due to their reported promising antimicrobial activity that would further enhance that of the synthesized AgNPs. The developed PCL/Cur/GLE NPs and PCL/Cur/GLE-Ag hybrid NPs were characterized using UV-visible spectrophotometry, high resolution transmission electron microscopy (HRTEM) and X-ray diffraction (XRD). HRTEM images showed that the PCL/Cur/GLE NPs are monodispersed and spherical with size of about 270nm, and the AgNPs were formed mainly on their surfaces with average size in the range 10-30nm. The synthesized AgNPs were found to be crystalline as shown by XRD patterns with fcc phase oriented along the (111), (200), (220) and (311) planes. The antimicrobial characteristics of the newly developed NPs were investigated against gram-positive and gram-negative bacteria in addition to two fungal strains. The results demonstrated that the PCL/Cur/GLE-Ag hybrid NPs have a potential antimicrobial activity against pathogenic bacterial species and could be considered as an alternative antibacterial agent.
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Affiliation(s)
- Ibrahim M El-Sherbiny
- Center for Materials Science, Zewail City of Science and Technology, 6th October City, 12588, Giza, Egypt.
| | - Ayman El-Shibiny
- Biomedical Science, Zewail City of Science and Technology, 6th October City, 12588, Giza, Egypt
| | - Ehab Salih
- Center for Materials Science, Zewail City of Science and Technology, 6th October City, 12588, Giza, Egypt
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221
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Birjandi Nejad H, Garrison KL, Mather PT. Comparative analysis of shape memory-based self-healing coatings. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/polb.24061] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hossein Birjandi Nejad
- Syracuse Biomaterials Institute and Biomedical and Chemical Engineering Department, Syracuse University; Syracuse New York 13244
- Lubrizol Corp.; Brecksville Ohio 44141
| | - Katie L. Garrison
- Syracuse Biomaterials Institute and Biomedical and Chemical Engineering Department, Syracuse University; Syracuse New York 13244
| | - Patrick T. Mather
- Syracuse Biomaterials Institute and Biomedical and Chemical Engineering Department, Syracuse University; Syracuse New York 13244
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222
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Naeimirad M, Zadhoush A, Abrishamkar A, Pishevar A, Leal AA. Melt-spun liquid core fibers: physical and morphological characteristics. IRANIAN POLYMER JOURNAL 2016. [DOI: 10.1007/s13726-016-0431-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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223
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Microcapsules Filled with a Palm Oil-Based Alkyd as Healing Agent for Epoxy Matrix. Polymers (Basel) 2016; 8:polym8040125. [PMID: 30979216 PMCID: PMC6431891 DOI: 10.3390/polym8040125] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 03/23/2016] [Accepted: 03/28/2016] [Indexed: 11/16/2022] Open
Abstract
One of the approaches to prolong the service lifespan of polymeric material is the development of self-healing ability by means of embedded microcapsules containing a healing agent. In this work, poly(melamine-urea-formaldehyde) (PMUF) microcapsules containing a palm oil-based alkyd were produced by polymerization of melamine resin, urea and formaldehyde that encapsulated droplets of the suspended alkyd particles. A series of spherical and free-flowing microcapsules were obtained. The chemical properties of core and shell materials were characterized by Attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR) and proton nuclear magnetic resonance spectroscopy (1H-NMR). Differential scanning calorimetry (DSC) analysis showed a glass transition around −15 °C due to the alkyd, and a melting temperature at around 200 °C due to the shell. Thermogravimetric analysis (TGA) results showed that the core and shell thermally degraded within the temperature range of 200–600 °C. Field emission scanning electron microscope (FESEM) examination of the ruptured microcapsule showed smooth inner and rough outer surfaces of the shell. Flexural strength and microhardness (Vickers) of the cured epoxy compound were not affected with the incorporation of 1%–3% of the microcapsules. The viability of the healing reactions was demonstrated by blending small amounts of alkyd with epoxy and hardener at different ratios. The blends could readily cure to non-sticky hard solids at room temperature and the reactions could be verified by ATR-FTIR.
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224
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Thakur VK, Voicu SI. Recent advances in cellulose and chitosan based membranes for water purification: A concise review. Carbohydr Polym 2016; 146:148-65. [PMID: 27112861 DOI: 10.1016/j.carbpol.2016.03.030] [Citation(s) in RCA: 220] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 02/19/2016] [Accepted: 03/14/2016] [Indexed: 12/28/2022]
Abstract
Recently membrane technology has emerged as a new promising and pervasive technology due to its innate advantages over traditional technologies such as adsorption, distillation and extraction. In this article, some of the recent advances in developing polymeric composite membrane materials for water purification from natural polysaccharide based polymers namely cellulose derivatives and chitosan are concisely reviewed. The impact of human social, demographic and industrial evolution along with expansion through environment has significantly affected the quality of water by pollution with large quantities of pesticides, minerals, drugs or other residues. At the forefront of decontamination and purification techniques, we found the membrane materials from polymers as a potential alternative. In an attempt to reduce the number of technical polymers widely used in the preparation of membranes, many researchers have reported new solutions for desalination or retention of organic yeasts, based on bio renewable polymers like cellulose derivatives and chitosan. These realizations are presented and discussed in terms of the most important parameters of membrane separation especially water flux and retention in this article.
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Affiliation(s)
- Vijay Kumar Thakur
- School of Mechanical and Materials Engineering, Washington State University, Pullman, WA, United States.
| | - Stefan Ioan Voicu
- Faculty of Applied Chemistry and Materials Sciences, University Politehnica from Bucharest, Bucharest 011061, Romania.
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225
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Siyawamwaya M, Choonara YE, Kumar P, Kondiah PPD, du Toit LC, Pillay V. A humic acid-polyquaternium-10 stoichiometric self-assembled fibrilla polyelectrolyte complex: Effect of pH on synthesis, characterization, and drug release. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2016.1149843] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Margaret Siyawamwaya
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Yahya E. Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Pradeep Kumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Pierre P. D. Kondiah
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Lisa C. du Toit
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Viness Pillay
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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226
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Li W, Zhu X, Zhao N, Jiang Z. Preparation and Properties of Melamine Urea-Formaldehyde Microcapsules for Self-Healing of Cementitious Materials. MATERIALS 2016; 9:ma9030152. [PMID: 28773280 PMCID: PMC5456676 DOI: 10.3390/ma9030152] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 02/14/2016] [Accepted: 02/26/2016] [Indexed: 11/23/2022]
Abstract
Self-healing microcapsules were synthesized by in situ polymerization with a melamine urea-formaldehyde resin shell and an epoxy resin adhesive. The effects of the key factors, i.e., core–wall ratio, reaction temperature, pH and stirring rate, were investigated by characterizing microcapsule morphology, shell thickness, particle size distribution, mechanical properties and chemical nature. Microcapsule healing mechanisms in cement paste were evaluated based on recovery strength and healing microstructure. The results showed that the encapsulation ability, the elasticity modulus and hardness of the capsule increased with an increase of the proportion of shell material. Increased polymerization temperatures were beneficial to the higher degree of shell condensation polymerization, higher resin particles deposition on microcapsule surfaces and enhanced mechanical properties. For relatively low pH values, the less porous three-dimensional structure led to the increased elastic modulus of shell and the more stable chemical structure. Optimized microcapsules were produced at a temperature of 60 °C, a core-wall ratio of 1:1, at pH 2~3 and at a stirring rate of 300~400 r/min. The best strength restoration was observed in the cement paste pre-damaged by 30% fmax and incorporating 4 wt % of capsules.
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Affiliation(s)
- Wenting Li
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804, China.
| | - Xujing Zhu
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804, China.
| | - Nan Zhao
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804, China.
| | - Zhengwu Jiang
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804, China.
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227
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Maciel DJ, Ferreira ILDM, da Costa GM, da Silva MR. Nanocomposite hydrogels based on iota-carrageenan and maghemite: Morphological, thermal and magnetic properties. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.01.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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228
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Gantayat S, Sarkar N, Prusty G, Rout D, Swain SK. Designing of Epoxy Matrix by Chemically Modified Multiwalled Carbon Nanotubes. ADVANCES IN POLYMER TECHNOLOGY 2016. [DOI: 10.1002/adv.21654] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Subhra Gantayat
- Department of Chemistry; Veer Surendra Sai University of Technology, Burla; Sambalpur 768 018 India
- School of Applied Sciences; KIIT University; Bhubaneswar 751 024 India
| | - Niladri Sarkar
- Department of Chemistry; Veer Surendra Sai University of Technology, Burla; Sambalpur 768 018 India
| | - Gyanaranjan Prusty
- Department of Chemistry; Veer Surendra Sai University of Technology, Burla; Sambalpur 768 018 India
| | - Dibyaranjan Rout
- School of Applied Sciences; KIIT University; Bhubaneswar 751 024 India
| | - Sarat K. Swain
- Department of Chemistry; Veer Surendra Sai University of Technology, Burla; Sambalpur 768 018 India
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229
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Wang B, Mireles K, Rock M, Li Y, Thakur VK, Gao D, Kessler MR. Synthesis and Preparation of Bio‐Based ROMP Thermosets from Functionalized Renewable Isosorbide Derivative. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201500506] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bingtao Wang
- Ningbo Institute of Technology Zhejiang University Xuefu Road No. 1 Ningbo 315100 China
| | - Kathryn Mireles
- School of Mechanical and Materials Engineering Washington State University Pullman WA 99164 USA
| | - Mitch Rock
- School of Mechanical and Materials Engineering Washington State University Pullman WA 99164 USA
| | - Yuzhan Li
- School of Mechanical and Materials Engineering Washington State University Pullman WA 99164 USA
| | - Vijay Kumar Thakur
- School of Mechanical and Materials Engineering Washington State University Pullman WA 99164 USA
| | - De Gao
- Ningbo Institute of Technology Zhejiang University Xuefu Road No. 1 Ningbo 315100 China
| | - Michael R. Kessler
- School of Mechanical and Materials Engineering Washington State University Pullman WA 99164 USA
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230
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de Lima GG, de Souza RO, Bozzi AD, Poplawska MA, Devine DM, Nugent MJD. Extraction Method Plays Critical Role in Antibacterial Activity of Propolis-Loaded Hydrogels. J Pharm Sci 2016; 105:1248-57. [PMID: 26886307 DOI: 10.1016/j.xphs.2015.12.027] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 12/21/2015] [Accepted: 12/22/2015] [Indexed: 01/19/2023]
Abstract
Extracted propolis has been used for a long time as a remedy. However, if the release rate of propolis is not controlled, the efficacy is reduced. To overcome this issue, extracted propolis was added to a cryogel system. Propolis collected from southern Brazil was extracted using different methods and loaded at different concentrations into polyvinyl alcohol (PVA) and polyacrylic acid hydrogels as carrier systems. The material properties were investigated with a focus on the propolis release profiles and the cryogel antibacterial properties against 4 different bacteria, namely: Staphylococcus aureus, Escherichia coli, Salmonella typhimurium, and Pseudomonas putida. Swelling studies indicated that the swelling of the hydrogel was inversely related to propolis content. In addition, propolis release studies indicated a decreased release rate with increased propolis loading. PVA and PVA/polyacrylic acid-loaded propolis were effective against all 4 bacteria studied. These results indicate that the efficacy of propolis can be enhanced by incorporation into hydrogel carrier systems and that hydrogels with higher concentrations of propolis can be considered for use as bactericide dressing.
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Affiliation(s)
- Gabriel G de Lima
- Materials Research Institute, Athlone Institute of Technology, Athlone, Ireland
| | - Ronaldo O de Souza
- Materials Research Institute, Athlone Institute of Technology, Athlone, Ireland
| | - Aline D Bozzi
- Materials Research Institute, Athlone Institute of Technology, Athlone, Ireland
| | | | - Declan M Devine
- Materials Research Institute, Athlone Institute of Technology, Athlone, Ireland; Rehabilitation Medicine Centre, Mayo Clinic, Rochester, Minnesota 55902
| | - Michael J D Nugent
- Materials Research Institute, Athlone Institute of Technology, Athlone, Ireland.
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231
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Miculescu M, Thakur VK, Miculescu F, Voicu SI. Graphene-based polymer nanocomposite membranes: a review. POLYM ADVAN TECHNOL 2016. [DOI: 10.1002/pat.3751] [Citation(s) in RCA: 150] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Marian Miculescu
- University POLITEHNICA of Bucharest; Metallic Material Science, Physical Metallurgy Department; 313, Independenţei Blvd. Bucharest 060042 Romania
| | - Vijay Kumar Thakur
- Washington State University; School of Mechanical and Materials Engineering; Pullman WA United States
| | - Florin Miculescu
- University POLITEHNICA of Bucharest; Metallic Material Science, Physical Metallurgy Department; 313, Independenţei Blvd. Bucharest 060042 Romania
| | - Stefan Ioan Voicu
- University Politehnica from Bucharest; Faculty of Applied Chemistry and Materials Sciences; 1-7 Gheorghe Polizu Bucharest 011061 Romania
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232
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Scheiner M, Dickens TJ, Okoli O. Progress towards self-healing polymers for composite structural applications. POLYMER 2016. [DOI: 10.1016/j.polymer.2015.11.008] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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233
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Miao X, Tian F, Lin J, Li H, Li X, Bian F, Zhang X. Tuning the mechanical properties of cellulose nanofibrils reinforced polyvinyl alcohol composites via altering the cellulose polymorphs. RSC Adv 2016. [DOI: 10.1039/c6ra14517e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cellulose nanofibrils (CNF) with polymorphs of cellulose I and II are different in morphology, aspect ratio, density of functional groups and mechanical properties, which influence the reinforcement effect for polymer composites.
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Affiliation(s)
- Xiaran Miao
- Shanghai Synchrotron Radiation Facility
- Shanghai Institute of Applied Physics
- Chinese Academy of Sciences
- Shanghai 201204
- China
| | - Feng Tian
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Donghua University
- Shanghai 201620
- China
- Shanghai Synchrotron Radiation Facility
| | - Jinyou Lin
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Donghua University
- Shanghai 201620
- China
- Shanghai Synchrotron Radiation Facility
| | - Hui Li
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Xiuhong Li
- Shanghai Synchrotron Radiation Facility
- Shanghai Institute of Applied Physics
- Chinese Academy of Sciences
- Shanghai 201204
- China
| | - Fenggang Bian
- Shanghai Synchrotron Radiation Facility
- Shanghai Institute of Applied Physics
- Chinese Academy of Sciences
- Shanghai 201204
- China
| | - Xiangzhi Zhang
- Shanghai Synchrotron Radiation Facility
- Shanghai Institute of Applied Physics
- Chinese Academy of Sciences
- Shanghai 201204
- China
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234
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Liu YJ, Fu LH, Liu S, Meng LY, Li YY, Ma MG. Synthetic self-assembled homogeneous network hydrogels with high mechanical and recoverable properties for tissue replacement. J Mater Chem B 2016; 4:4847-4854. [DOI: 10.1039/c6tb01249c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Homogeneous network hydrogels with high mechanical and recoverable properties for tissue replacement are prepared by one-pot free radical polymerization.
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Affiliation(s)
- Yan-Jun Liu
- Engineering Research Center of Forestry Biomass Materials and Bioenergy
- Beijing Key Laboratory of Lignocellulosic Chemistry
- College of Materials Science and Technology
- Beijing Forestry University
- Beijing 100083
| | - Lian-Hua Fu
- Engineering Research Center of Forestry Biomass Materials and Bioenergy
- Beijing Key Laboratory of Lignocellulosic Chemistry
- College of Materials Science and Technology
- Beijing Forestry University
- Beijing 100083
| | - Shan Liu
- Engineering Research Center of Forestry Biomass Materials and Bioenergy
- Beijing Key Laboratory of Lignocellulosic Chemistry
- College of Materials Science and Technology
- Beijing Forestry University
- Beijing 100083
| | - Ling-Yan Meng
- Engineering Research Center of Forestry Biomass Materials and Bioenergy
- Beijing Key Laboratory of Lignocellulosic Chemistry
- College of Materials Science and Technology
- Beijing Forestry University
- Beijing 100083
| | - Ya-Yu Li
- Engineering Research Center of Forestry Biomass Materials and Bioenergy
- Beijing Key Laboratory of Lignocellulosic Chemistry
- College of Materials Science and Technology
- Beijing Forestry University
- Beijing 100083
| | - Ming-Guo Ma
- Engineering Research Center of Forestry Biomass Materials and Bioenergy
- Beijing Key Laboratory of Lignocellulosic Chemistry
- College of Materials Science and Technology
- Beijing Forestry University
- Beijing 100083
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235
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de Quadros Melo D, de Oliveira Sousa Neto V, de Freitas Barros FC, Raulino GSC, Vidal CB, do Nascimento RF. Chemical modifications of lignocellulosic materials and their application for removal of cations and anions from aqueous solutions. J Appl Polym Sci 2015. [DOI: 10.1002/app.43286] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Diego de Quadros Melo
- Department of Chemistry; Federal Institute of Education and Science of Piauí; Rodovia Br 407, S/N, Campus Paulistana CEP: 64750-000 Paulistana Piauí Brazil
- Department of Analytical Chemistry and Physical Chemistry; Federal University of Ceará; Rua Do Contorno, S/N, Campus Do Pici, Bl. 940 CEP: 60451-970 Fortaleza Ceará Brazil
| | | | - Francisco Claudio de Freitas Barros
- Department of Analytical Chemistry and Physical Chemistry; Federal University of Ceará; Rua Do Contorno, S/N, Campus Do Pici, Bl. 940 CEP: 60451-970 Fortaleza Ceará Brazil
| | - Giselle Santiago Cabral Raulino
- Department of Hydraulic and Environmental Engineering; Federal University of Ceará; Rua Do Contorno, S/N Campus Do Pici, Bl. 713 CEP: 60451-970 Fortaleza Ceará Brazil
| | - Carla Bastos Vidal
- Department of Hydraulic and Environmental Engineering; Federal University of Ceará; Rua Do Contorno, S/N Campus Do Pici, Bl. 713 CEP: 60451-970 Fortaleza Ceará Brazil
| | - Ronaldo Ferreira do Nascimento
- Department of Analytical Chemistry and Physical Chemistry; Federal University of Ceará; Rua Do Contorno, S/N, Campus Do Pici, Bl. 940 CEP: 60451-970 Fortaleza Ceará Brazil
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236
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Novel method in amidoximation of polypropylene grafted polyacrylonitrile film: synthesis, characterization and application. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s12588-015-9125-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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237
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Koziol M, Figlus T. Failure Progress of 3D Reinforced GFRP Laminate during Static Bending, Evaluated by Means of Acoustic Emission and Vibrations Analysis. MATERIALS (BASEL, SWITZERLAND) 2015; 8:8751-8767. [PMID: 28793743 PMCID: PMC5458831 DOI: 10.3390/ma8125490] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 11/29/2015] [Accepted: 12/03/2015] [Indexed: 11/18/2022]
Abstract
The work aimed to assess the failure progress in a glass fiber-reinforced polymer laminate with a 3D-woven and (as a comparison) plain-woven reinforcement, during static bending, using acoustic emission signals. The innovative method of the separation of the signal coming from the fiber fracture and the one coming from the matrix fracture with the use of the acoustic event's energy as a criterion was applied. The failure progress during static bending was alternatively analyzed by evaluation of the vibration signal. It gave a possibility to validate the results of the acoustic emission. Acoustic emission, as well as vibration signal analysis proved to be good and effective tools for the registration of failure effects in composite laminates. Vibration analysis is more complicated methodologically, yet it is more precise. The failure progress of the 3D laminate is "safer" and more beneficial than that of the plain-woven laminate. It exhibits less rapid load capacity drops and a higher fiber effort contribution at the moment of the main laminate failure.
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Affiliation(s)
- Mateusz Koziol
- Faculty of Materials Engineering and Metallurgy, Silesian University of Technology, ul. Krasinskiego 8, 40-019 Katowice, Poland.
| | - Tomasz Figlus
- Faculty of Transport, Silesian University of Technology, ul. Krasinskiego 8, 40-019 Katowice, Poland.
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238
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Effect of processing conditions and lignin content on thermal, mechanical and degradative behavior of lignin nanoparticles/polylactic (acid) bionanocomposites prepared by melt extrusion and solvent casting. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.07.051] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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239
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Effect of Chitosan on Disease Control and Growth of Scots Pine (Pinus sylvestris L.) in a Forest Nursery. FORESTS 2015. [DOI: 10.3390/f6093165] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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240
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241
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Yu M, Song A, Xu G, Xin X, Shen J, Zhang H, Song Z. 3D welan gum–graphene oxide composite hydrogels with efficient dye adsorption capacity. RSC Adv 2015. [DOI: 10.1039/c5ra12806d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this article, welan gum-graphene oxide (GO) composite hydrogels were prepared by simple self-assembly of both components in aqueous media and the effects of GO on the gelation of welan gum were systematically studied.
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Affiliation(s)
- Menghong Yu
- National Engineering Technology Research Center for Colloidal Materials
- Shandong University
- Jinan
- P. R. China
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
| | - Aixin Song
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
| | - Guiying Xu
- National Engineering Technology Research Center for Colloidal Materials
- Shandong University
- Jinan
- P. R. China
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
| | - Xia Xin
- National Engineering Technology Research Center for Colloidal Materials
- Shandong University
- Jinan
- P. R. China
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
| | - Jinglin Shen
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
| | - Han Zhang
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
| | - Zhaohua Song
- National Engineering Technology Research Center for Colloidal Materials
- Shandong University
- Jinan
- P. R. China
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242
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Govindaiah P, Kim YS, Hong JK, Kim JH, Cheong IW. One-pot synthesis of grafted brush copolymers via a chain-growth radical/oxidative dual polymerization system. RSC Adv 2015. [DOI: 10.1039/c5ra15145g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Grafted brush copolymers via one-step metal-catalyzed chain-growth radical/oxidative dual polymerization.
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Affiliation(s)
- Patakamuri Govindaiah
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 120-749
- Republic of Korea
| | - Yong Seok Kim
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 120-749
- Republic of Korea
- Department of Materials Science and Engineering
| | - Jae Keun Hong
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 120-749
- Republic of Korea
| | - Jung Hyun Kim
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 120-749
- Republic of Korea
| | - In Woo Cheong
- Department of Applied Chemistry
- Kyungpook National University
- Daegu 702-701
- Republic of Korea
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