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Advanced Optical Polymers: Synthesis, Characterization, and Applications
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Advanced Optical Polymers: Synthesis, Characterization, and Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Composites".

Deadline for manuscript submissions: closed (20 November 2021) | Viewed by 5478

Special Issue Editors

Dr. Beata Podkościelna

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Guest Editor
Department of Polymer Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, M. Curie-Sklodowska Sq. 3, PL-20031 Lublin, Poland
Interests: synthesis of new monomers and polymers; chemical modification of synthetic and natural polymers; synthesis of biocomposites; application of ligno-cellulosic materials in polymer chemistry; synthesis of porous polymers in the form of microspheres; investigations of the porous structure of polymeric materials; synthesis of novel polymer-based adsorbents for water treatment; photochemistry; physico-chemical, thermal and mechanical studies of polymers; synthesis of polymeric blends; synthesis of hybrid materials
Special Issues, Collections and Topics in MDPI journals
Dr. Malgorzta Gil-Kowalczyk

E-Mail Website
Guest Editor
Laboratory of Optical Fibres Technology, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, M. Curie-Sklodowska Sq. 3, 20-031, Poland
Interests: optical fiber technology; optical fiber sensors; material engineering; polymer analysis; better understanding of the structure of new synthesized materials; chemical modification and characterization of optical polymers; material aging and the impact of this process on the usability of materials; thermal and spectroscopic studies of polymers; hybrid materials–organic and inorganic composites

Special Issue Information

Dear Colleagues,

Optical polymers belong to the group of materials that are widely used in photonic technologies. Therefore, a lot of effort is devoted to the thorough analysis of existing ones and the synthesis of new ones, whose special properties can become competitive for many industries.

Due to the isotropy and homogeneity comparable to that of conventional optical glasses, they are called organic glasses. The most commonly used representatives of this group of compounds are poly(methyl methacrylate), which is characterized by the highest transparency, polystyrene, which has long been used in optical technology, and polycarbonates, which are characterized by the highest thermal resistance. These materials are characterized by great ease of forming, low price, and the ability to produce large components with complex shapes, difficult to process individually. In addition, they have good visible light transmission, low specific weight, considerable flexibility, and high thermal expansion. The optical properties of such materials may include refractive index, polarization, absorption, luminescence (fluorescence), transmittance, etc.

Aiming to highlight this concept, this Special Issue will focus on the monomeric and polymeric materials currently used in optical technologies, photochemistry, and other related techniques, all kinds of advanced polymeric materials characterized by optical properties.

We kindly invite you to submit a manuscript(s) for this Special Issue. Full papers, communications, and reviews are all welcome.

Dr. Beata Podkościelna
Dr. Malgorzta Gil-Kowalczyk
Guest Editors

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. Materials 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 2600 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

  • Optical polymers
  • Photochemistry
  • Luminescence
  • High transparency
  • Refraction index
  • Poly(methyl methacrylate)
  • Optical properties
  • Photonic technologies
  • Organic glasses

Published Papers (2 papers)

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Research

19 pages, 6948 KiB  
Article
Thermal, Spectroscopy and Luminescent Characterization of Hybrid PMMA/Lanthanide Complex Materials
by Małgorzata Gil-Kowalczyk, Renata Łyszczek, Anna Jusza and Ryszard Piramidowicz
Materials 2021, 14(12), 3156; https://doi.org/10.3390/ma14123156 - 8 Jun 2021
Cited by 7 | Viewed by 1889
Abstract
Novel hybrid materials based on the poly(methyl methacrylate) (PMMA) matrix and lanthanide(III) carboxylates Eu:2,6-DClB and Tb:2,6-DClB were synthesized and carefully analyzed in the context of their potential application in optically active polymer-based optical fibers. To determine the usefulness of the obtained materials, a [...] Read more.
Novel hybrid materials based on the poly(methyl methacrylate) (PMMA) matrix and lanthanide(III) carboxylates Eu:2,6-DClB and Tb:2,6-DClB were synthesized and carefully analyzed in the context of their potential application in optically active polymer-based optical fibers. To determine the usefulness of the obtained materials, a careful thermal, mass spectroscopy, and optical characterization was performed, focusing on the features critical for the technology of optical fiber processing. In addition, the luminescent features of both lanthanide complexes and the resulting hybrid composites were carefully investigated to identify the processes responsible for light emission and to analyze the influence of the PMMA host on light emission intensity and spectral characteristics. The obtained results showed that both lanthanide carboxylate complexes exhibited intense luminescence in the red and green spectral range, typical of europium and terbium dopants, and that those features were well preserved after introducing them into the PMMA polymer. Thermal analysis also proved that introducing the luminescent additives did not significantly affect the thermal properties of both hybrid materials, thus enabling further processing into the form of optical fibers. Full article
(This article belongs to the Special Issue Advanced Optical Polymers: Synthesis, Characterization, and Applications)
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25 pages, 4171 KiB  
Article
Cross-Linked Polythiomethacrylate Esters Based on Naphthalene—Synthesis, Properties and Reprocessing
by Karolina Fila, Beata Podkościelna and Maciej Podgórski
Materials 2020, 13(13), 3021; https://doi.org/10.3390/ma13133021 - 6 Jul 2020
Cited by 4 | Viewed by 2715
Abstract
Two structurally different aromatic dithioesters were synthesized from two dithiols and methacryloyl chloride. The polymer networks based on methyl methacrylate and/or styrene and the new dimethacrylates were subsequently prepared. The polymerization yields of copolymers were in the range of 95–99%. The thermal and [...] Read more.
Two structurally different aromatic dithioesters were synthesized from two dithiols and methacryloyl chloride. The polymer networks based on methyl methacrylate and/or styrene and the new dimethacrylates were subsequently prepared. The polymerization yields of copolymers were in the range of 95–99%. The thermal and mechanical properties of the copolymers were determined by means of differential scanning calorimetry (DSC), thermogravimetric analysis (TG/DTG), and Shore D hardness. The addition of dithioesters—1,5-NAF-S-Met (or 1,4(1,5)-NAF-CH2S-Met) (from 0.5% to 5%) to MMA- or ST-based polymers results in lowering the glass transition temperature (Tg) by about 8 °C. The thioester-containing polymers based on MMA exhibit lower thermal stability than those with ST. The polythioesters are stable up to 250 °C. The UV/vis spectra and refractive indexes of prepared liquid compositions were also measured. The 1,5-NAF-S-Met (and 1,4(1,5)-NAF-CH2S-Met) improved the refractive index values of ST and MMA compositions. The double bond conversion was also determined for all synthesized materials. The swelling studies of polymers with 20% addition of thioester crosslinkers were investigated. For all polymeric materials with 20% addition of thioesters, depolymerization of the network was carried out by thiol-thioester exchange. The depolymerization products were re-reacted in a thiol-ene reaction with 2-hydroxyethyl methacrylate by thermal initiation. The thiol-ene procedure enabled reprocessing of starting polymers and obtaining new materials characterized by distinctly different thermal, mechanical, and swelling properties. The thiol-ene materials exhibit a lower Shore hardness in the range of 20–50 °Sh, as well as decreased Tg values when compared to starting copolymers. Due to these possible exchange reactions, one can facilely manipulate the properties of the polymers which could lead to the manufacturing of the new products with the desired features. Degradation of the cross-linked structure and recycling of copolymers were also discussed. Full article
(This article belongs to the Special Issue Advanced Optical Polymers: Synthesis, Characterization, and Applications)
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