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Polymers
Special Issues
Photo-Enhanced Functional Polymer Composites
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Photo-Enhanced Functional Polymer Composites

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: closed (10 February 2020) | Viewed by 9980

Special Issue Editor

Dr. Ming-Chung Wu

E-Mail Website
Guest Editor
Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 33302, Taiwan
Interests: nanomaterials synthesis; photocatalytic materials; photocatalysis applications; perovskite solar cells; VOC sensing materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Functional polymer composites continue to be a research hotspot due to their promising properties and diverse applications. Polymer composites with high fatigue strength, low weight, and corrosion resistance make it widely applied in our daily life. Recent advances in photo-enhanced polymer composites have enabled material changes in behavior in response to light illumination and extended its application such as photocatalysis, photo-enhanced electroresistance, and photo-enhanced piezoelectricity.
This Special Issue will provide a forum to disseminate new developments of polymers and polymer composites. Researchers in the field are cordially invited to submit relevant manuscripts concerning the development of innovative material for a Special Issue entitled “Photo-Enhanced Functional Polymer Composites” within the journal Polymers.

Prof. Dr. Ming-Chung Wu
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Photocatalytic polymers
  • Photocatalytic polymer composites
  • TiO2-based polymer composites
  • Optoelectronic polymer composites
  • Photo-enhanced piezocatalytic polymer composites
  • Photo-enhanced electroresistance polymer composites
  • Synergic effect
  • Water purification
  • Photocatalytic hydrogen productions
  • Photocatalytic water splitting.

Published Papers (3 papers)

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Research

12 pages, 4087 KiB  
Article
Highly-Sensitive Detection of Volatile Organic Compound Vapors by Electrospun PANI/P3TI/PMMA Fibers
by Duy Linh Vu, Tz-Feng Lin, Ting-Han Lin and Ming-Chung Wu
Polymers 2020, 12(2), 455; https://doi.org/10.3390/polym12020455 - 16 Feb 2020
Cited by 11 | Viewed by 2637
Abstract
Detection of volatile organic compounds (VOCs) is one of the essential concerns for human health protection and environmental monitoring. In this study, the blending fibers using a donor-acceptor copolymer were fabricated by electrospinning technique and subsequent UV/ozone treatment. The donor-acceptor polymers were polyaniline, [...] Read more.
Detection of volatile organic compounds (VOCs) is one of the essential concerns for human health protection and environmental monitoring. In this study, the blending fibers using a donor-acceptor copolymer were fabricated by electrospinning technique and subsequent UV/ozone treatment. The donor-acceptor polymers were polyaniline, P3TI, and poly(methyl methacrylate) (PANI/P3TI/PMMA) fibers with a cylindrical structure and uniform morphology. VOCs were directly adsorbed by the copolymer materials assembled onto a glass surface or metal framework scaffold. Under optimal conditions, the PANI/P3TI/PMMA fibers exhibit rapid response and high selectivity to VOC vapors within 30 min of UV/ozone treatment. Additionally, the optical transmittance changes of the freestanding fibers show significant improvement of more than 10 times to those fibers on glass substrates. It is speculated that the presence of P3TI leads to the formation of a heterojunction and increases the electron reception behavior. The modification of the electronic structure as exposed to VOC vapors tend to significantly alter the optical absorbance of the fibers, leading to the excellent sensing at low VOC concentration. Full article
(This article belongs to the Special Issue Photo-Enhanced Functional Polymer Composites)
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13 pages, 3581 KiB  
Article
Effect of Particle Sizes of Nickel Powder on Thermal Conductivity of Epoxy Resin-Based Composites under Magnetic Alignment
by Zheng Jin, Fei Liang, Wenzhong Lu, Jinhang Dai, Shunliang Meng and Zihang Lin
Polymers 2019, 11(12), 1990; https://doi.org/10.3390/polym11121990 - 02 Dec 2019
Cited by 11 | Viewed by 2889
Abstract
Magnetically oriented three-phase composite systems of epoxy resin, aluminum nitride, and nickel have been prepared, the thermal conductivity of composites filled with nickel powder with different particle sizes and content under different applied magnetic fields was studied. The vibrating scanning magnetometer (VSM) and [...] Read more.
Magnetically oriented three-phase composite systems of epoxy resin, aluminum nitride, and nickel have been prepared, the thermal conductivity of composites filled with nickel powder with different particle sizes and content under different applied magnetic fields was studied. The vibrating scanning magnetometer (VSM) and scanning electron microscopy (SEM) were applied to investigate the dispersion of nickel powder in the composites. The results showed that the anisotropic thermal conductivity of the composites treated by applied magnetic field forming chain structure is obtained. The epoxy resin-based composites filled with 30 vol% aluminum nitride with particle size of 1 μm and 2 vol% nickel powder with particle size of 1 μm and aligned with vertical magnetic field have the highest thermal conductivity (1.474 W/mk), which increases the thermal conductivity of the composites by 737% and 58% compared to the pure epoxy resin (0.2 W/mk) and the composites filled with 30 vol% aluminum nitride (0.933 W/mk). In addition, we simulated the influence of nickel powder particles with different particle sizes and arrangements on the thermal conductivity of the composite material in COMSOL Multiphysics software, and the results were consistent with the experimental results. Full article
(This article belongs to the Special Issue Photo-Enhanced Functional Polymer Composites)
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15 pages, 2576 KiB  
Article
Silicone-Thioxanthone: A Multifunctionalized Visible Light Photoinitiator with an Ability to Modify the Cured Polymers
by Qingqing Wu, Wen Liao, Ying Xiong, Jianjing Yang, Zhen Li and Hongding Tang
Polymers 2019, 11(4), 695; https://doi.org/10.3390/polym11040695 - 16 Apr 2019
Cited by 19 | Viewed by 4040
Abstract
A silicone-thioxanthone (STX) visible light photoinitiator was prepared by the nucleophilic substitution reaction of 2-[(4-hydroxybenzyl)-(methyl)-amino]-9H-thioxanthen-9-one (TX-HB) and γ-chloropropylmethylpolysiloxane-co-dimethyl-polysiloxane (PSO-Cl). Its structure was confirmed by 1H NMR, 13C NMR, FTIR, UV-vis and GPC. The photopolymerization kinetics of 1, 6-Hexanedioldiacrylate (HDDA) [...] Read more.
A silicone-thioxanthone (STX) visible light photoinitiator was prepared by the nucleophilic substitution reaction of 2-[(4-hydroxybenzyl)-(methyl)-amino]-9H-thioxanthen-9-one (TX-HB) and γ-chloropropylmethylpolysiloxane-co-dimethyl-polysiloxane (PSO-Cl). Its structure was confirmed by 1H NMR, 13C NMR, FTIR, UV-vis and GPC. The photopolymerization kinetics of 1, 6-Hexanedioldiacrylate (HDDA) and trimethylolpropane triacrylate (TMPTA) initiated by STX confirmed that STX is an efficient photoinitiator. Its visible light photolysis experiment and the photopolymerization kinetics studies implied that a possible synergistic effect existed between two adjacent thioxanthone groups. Moreover, a higher migration stability was revealed in STX than 2-benzyl (methyl) amino-9H-thioxanthen-9-one (TX-B). STX could change the surface property of the cured film of polyurethane diacrylate prepolymer (PUA) from hydrophilic to hydrophobic, as well as change the thermal stability of the polymer network. Meanwhile, it could improve the resistance against water and acid. Thus, STX is an effective multifunctionalized photoinitiator. Full article
(This article belongs to the Special Issue Photo-Enhanced Functional Polymer Composites)
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