A Versatile Equilibrium Method for the Synthesis of High-Strength, Ladder-like Polyphenylsilsesquioxanes with Finely Tunable Molecular Parameters

A versatile equilibrium method for synthesizing ladder-like polyphenylsilsesquioxanes (L-PPSQs) with various molecular weights (from 4 to 500 kDa) in liquid ammonia was developed. The effect of diverse parameters, such as temperature, monomer concentration, reaction time, addition or removal of wate...

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Autores principales: Ershova, Tatyana O., Anisimov, Anton A., Temnikov, Maxim N., Novikov, Maxim A., Buzin, Mikhail I., Nikiforova, Galina G., Dyuzhikova, Yulia S., Ushakov, Ivan E., Shchegolikhina, Olga I., Muzafarov, Aziz M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
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Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8705838/
https://www.ncbi.nlm.nih.gov/pubmed/34961003
http://dx.doi.org/10.3390/polym13244452
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author Ershova, Tatyana O.
Anisimov, Anton A.
Temnikov, Maxim N.
Novikov, Maxim A.
Buzin, Mikhail I.
Nikiforova, Galina G.
Dyuzhikova, Yulia S.
Ushakov, Ivan E.
Shchegolikhina, Olga I.
Muzafarov, Aziz M.
author_facet Ershova, Tatyana O.
Anisimov, Anton A.
Temnikov, Maxim N.
Novikov, Maxim A.
Buzin, Mikhail I.
Nikiforova, Galina G.
Dyuzhikova, Yulia S.
Ushakov, Ivan E.
Shchegolikhina, Olga I.
Muzafarov, Aziz M.
author_sort Ershova, Tatyana O.
collection PubMed
description A versatile equilibrium method for synthesizing ladder-like polyphenylsilsesquioxanes (L-PPSQs) with various molecular weights (from 4 to 500 kDa) in liquid ammonia was developed. The effect of diverse parameters, such as temperature, monomer concentration, reaction time, addition or removal of water from the reaction medium, on the polycondensation process was determined. The molecular weight characteristics and structure of the L-PPSQ elements obtained were determined by GPC, (1)H, (29)Si NMR, IR spectroscopy, viscometry, and PXRD methods. The physicochemical properties of L-PPSQs were determined by TGA and mechanical analyses.
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spelling pubmed-87058382021-12-25 A Versatile Equilibrium Method for the Synthesis of High-Strength, Ladder-like Polyphenylsilsesquioxanes with Finely Tunable Molecular Parameters Ershova, Tatyana O. Anisimov, Anton A. Temnikov, Maxim N. Novikov, Maxim A. Buzin, Mikhail I. Nikiforova, Galina G. Dyuzhikova, Yulia S. Ushakov, Ivan E. Shchegolikhina, Olga I. Muzafarov, Aziz M. Polymers (Basel) Article A versatile equilibrium method for synthesizing ladder-like polyphenylsilsesquioxanes (L-PPSQs) with various molecular weights (from 4 to 500 kDa) in liquid ammonia was developed. The effect of diverse parameters, such as temperature, monomer concentration, reaction time, addition or removal of water from the reaction medium, on the polycondensation process was determined. The molecular weight characteristics and structure of the L-PPSQ elements obtained were determined by GPC, (1)H, (29)Si NMR, IR spectroscopy, viscometry, and PXRD methods. The physicochemical properties of L-PPSQs were determined by TGA and mechanical analyses. MDPI 2021-12-18 /pmc/articles/PMC8705838/ /pubmed/34961003 http://dx.doi.org/10.3390/polym13244452 Text en © 2021 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
Ershova, Tatyana O.
Anisimov, Anton A.
Temnikov, Maxim N.
Novikov, Maxim A.
Buzin, Mikhail I.
Nikiforova, Galina G.
Dyuzhikova, Yulia S.
Ushakov, Ivan E.
Shchegolikhina, Olga I.
Muzafarov, Aziz M.
A Versatile Equilibrium Method for the Synthesis of High-Strength, Ladder-like Polyphenylsilsesquioxanes with Finely Tunable Molecular Parameters
title A Versatile Equilibrium Method for the Synthesis of High-Strength, Ladder-like Polyphenylsilsesquioxanes with Finely Tunable Molecular Parameters
title_full A Versatile Equilibrium Method for the Synthesis of High-Strength, Ladder-like Polyphenylsilsesquioxanes with Finely Tunable Molecular Parameters
title_fullStr A Versatile Equilibrium Method for the Synthesis of High-Strength, Ladder-like Polyphenylsilsesquioxanes with Finely Tunable Molecular Parameters
title_full_unstemmed A Versatile Equilibrium Method for the Synthesis of High-Strength, Ladder-like Polyphenylsilsesquioxanes with Finely Tunable Molecular Parameters
title_short A Versatile Equilibrium Method for the Synthesis of High-Strength, Ladder-like Polyphenylsilsesquioxanes with Finely Tunable Molecular Parameters
title_sort versatile equilibrium method for the synthesis of high-strength, ladder-like polyphenylsilsesquioxanes with finely tunable molecular parameters
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8705838/
https://www.ncbi.nlm.nih.gov/pubmed/34961003
http://dx.doi.org/10.3390/polym13244452
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