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Synthesis and Characterization of New Polycarbonate-Based Poly(thiourethane-urethane)s
The new segmented poly(thiourethane-urethane)s (PTURs) based on 1,1′-methanediylbis(4-isocyanatocyclohexane) (HMDI, Desmodur W(®)), polycarbonate diol (PCD, Desmophen C2200) and (methanediyldibenzene-4,1-diyl)dimethanethiol were synthesized by one-step melt polyaddition method. The obtained PTURs, w...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9323315/ https://www.ncbi.nlm.nih.gov/pubmed/35890709 http://dx.doi.org/10.3390/polym14142933 |
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author | Puszka, Andrzej Sikora, Janusz W. |
author_facet | Puszka, Andrzej Sikora, Janusz W. |
author_sort | Puszka, Andrzej |
collection | PubMed |
description | The new segmented poly(thiourethane-urethane)s (PTURs) based on 1,1′-methanediylbis(4-isocyanatocyclohexane) (HMDI, Desmodur W(®)), polycarbonate diol (PCD, Desmophen C2200) and (methanediyldibenzene-4,1-diyl)dimethanethiol were synthesized by one-step melt polyaddition method. The obtained PTURs, with a content of 30–60 wt% of the hard segments (HS), were tested in which the influence of changes in the HS content on their properties was determined. The polymers were characterized by Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), thermal analysis (DSC, TGA) and thermomechanical analysis (DMTA). Additionally, tensile strength, optical (refractive index, UV-VIS and color) and surface properties of the obtained polymers (contact angle and surface free energy) and adhesion to copper were examined. FTIR analysis verified the supposed structure of the polymers obtained and showed a complete conversion of the isocyanate groups. TGA analysis confirmed the relatively good thermal stability of the polymers. On the other hand, after performing the DSC analysis, it was possible to state that the obtained materials were partially or completely amorphous, and the microphase separation decreased with increasing HS content in the polymer. Similar observations were made from the DMTA data. In addition, the hardness, tensile strength, modulus of elasticity, storage modulus, adhesion to copper, refractive index and total free surface energy increased with increasing HS content in the polymer. |
format | Online Article Text |
id | pubmed-9323315 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-93233152022-07-27 Synthesis and Characterization of New Polycarbonate-Based Poly(thiourethane-urethane)s Puszka, Andrzej Sikora, Janusz W. Polymers (Basel) Article The new segmented poly(thiourethane-urethane)s (PTURs) based on 1,1′-methanediylbis(4-isocyanatocyclohexane) (HMDI, Desmodur W(®)), polycarbonate diol (PCD, Desmophen C2200) and (methanediyldibenzene-4,1-diyl)dimethanethiol were synthesized by one-step melt polyaddition method. The obtained PTURs, with a content of 30–60 wt% of the hard segments (HS), were tested in which the influence of changes in the HS content on their properties was determined. The polymers were characterized by Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), thermal analysis (DSC, TGA) and thermomechanical analysis (DMTA). Additionally, tensile strength, optical (refractive index, UV-VIS and color) and surface properties of the obtained polymers (contact angle and surface free energy) and adhesion to copper were examined. FTIR analysis verified the supposed structure of the polymers obtained and showed a complete conversion of the isocyanate groups. TGA analysis confirmed the relatively good thermal stability of the polymers. On the other hand, after performing the DSC analysis, it was possible to state that the obtained materials were partially or completely amorphous, and the microphase separation decreased with increasing HS content in the polymer. Similar observations were made from the DMTA data. In addition, the hardness, tensile strength, modulus of elasticity, storage modulus, adhesion to copper, refractive index and total free surface energy increased with increasing HS content in the polymer. MDPI 2022-07-20 /pmc/articles/PMC9323315/ /pubmed/35890709 http://dx.doi.org/10.3390/polym14142933 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Puszka, Andrzej Sikora, Janusz W. Synthesis and Characterization of New Polycarbonate-Based Poly(thiourethane-urethane)s |
title | Synthesis and Characterization of New Polycarbonate-Based Poly(thiourethane-urethane)s |
title_full | Synthesis and Characterization of New Polycarbonate-Based Poly(thiourethane-urethane)s |
title_fullStr | Synthesis and Characterization of New Polycarbonate-Based Poly(thiourethane-urethane)s |
title_full_unstemmed | Synthesis and Characterization of New Polycarbonate-Based Poly(thiourethane-urethane)s |
title_short | Synthesis and Characterization of New Polycarbonate-Based Poly(thiourethane-urethane)s |
title_sort | synthesis and characterization of new polycarbonate-based poly(thiourethane-urethane)s |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9323315/ https://www.ncbi.nlm.nih.gov/pubmed/35890709 http://dx.doi.org/10.3390/polym14142933 |
work_keys_str_mv | AT puszkaandrzej synthesisandcharacterizationofnewpolycarbonatebasedpolythiourethaneurethanes AT sikorajanuszw synthesisandcharacterizationofnewpolycarbonatebasedpolythiourethaneurethanes |