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Lubczak J, Lubczak R, Chmiel-Bator E, Szpiłyk M. Polyols and Polyurethane Foams Obtained from Mixture of Metasilicic Acid and Cellulose. Polymers (Basel) 2022; 14:polym14194039. [PMID: 36235991 PMCID: PMC9572702 DOI: 10.3390/polym14194039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/22/2022] [Accepted: 09/23/2022] [Indexed: 11/21/2022] Open
Abstract
Hydroxyalkylation of the mixture of metasilicic acid and cellulose with glycidol and ethylene carbonate leads to a polyol suitable to obtain rigid polyurethane foams. The composition, structure, and physical properties of the polyol were studied in detail. The obtained foams have apparent density, water absorption, and polymerization shrinkage, as well as heat conduction coefficients similar to conventional, rigid polyurethane foams. The polyols and foams obtained from environmentally unobtrusive substrates are easily biodegradable. Additionally, the obtained foams have high thermal resistance and are self-extinguishing. Thermal exposure of the foams leads to an increase of the compressive strength of the material and further reduces their flammability, which renders them suitable for use as heat insulating materials.
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Use of a Mixture of Polyols Based on Metasilicic Acid and Recycled PLA for Synthesis of Rigid Polyurethane Foams Susceptible to Biodegradation. Int J Mol Sci 2020; 22:ijms22010069. [PMID: 33374754 PMCID: PMC7795053 DOI: 10.3390/ijms22010069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/16/2020] [Accepted: 12/21/2020] [Indexed: 11/16/2022] Open
Abstract
Two polyol raw materials were obtained in the conducted research, one based on metasilicic acid (MSA), the other based on poly(lactic acid) (PLA) waste. The obtained polyols were characterized in terms of their applicability for the production of rigid polyurethane foams (RPUFs). Their basic analytical properties (hydroxyl number, acid number, elemental analysis) and physicochemical properties (density, viscosity) were determined. The assumed chemical structure of the obtained new compounds was confirmed by performing FTIR and 1H NMR spectroscopic tests. Formulations for the synthesis of RPUFs were developed on the basis of the obtained research results. A mixture of polyols based on MSA and PLA in a weight ratio of 1:1 was used as the polyol component in the polyurethane formulation. The reference foam in these tests was a foam that was synthesized only on the basis of MSA-polyol. The obtained RPUFs were tested for basic functional properties (apparent density, compressive strength, water absorption, thermal conductivity coefficient etc.). Susceptibility to biodegradation in soil environment was also tested. It was found that the use of mixture of polyols based on MSA and PLA positively affected the properties of the obtained foam. The polyurethane foam based on this polyol mixture showed good thermal resistance and significantly reduced flammability in comparison with the foam based MSA-polyol. Moreover, it showed higher compressive strength, lower thermal conductivity and biodegradability in soil. The results of the conducted tests confirmed that the new foam was characterized by very good performance properties. In addition, this research provides information on new waste management opportunities and fits into the doctrine of sustainable resource management offered by the circular economy.
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Chmiel E, Lubczak J. Polyurethane foams with 1,3,5-triazine ring, boron and silicon. J CELL PLAST 2019. [DOI: 10.1177/0021955x19864397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The method of obtaining polyurethane foams with 1,3,5-triazine ring and silicon and boron atoms, based on two oligoetherols, the one, synthesized from melamine diborate and propylene carbonate and the second, obtained from metasilicic acid, glycidol and ethylene carbonate, was elaborated. The physical properties of polyurethane foams were tested depending on composition of oligoetherol substrates mixture used. Obtained polyurethane foams have high compression strength and enhanced thermal resistance in comparison to classic rigid polyurethane foams. Long-term thermal exposure at 150–175°C results in increase of compression strength and reducing in flammability. The polyurethane foams exposed per month at 150°C show increase of oxygen index within 24.4–27.6, i.e. they are self-extinguishing. When polyurethane foams are exposed at 175°C, the oxygen index rise into 46.5–48.0, and the materials become non-flammable.
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Affiliation(s)
- Ewelina Chmiel
- Department of Organic Chemistry, Rzeszów University of Technology, Rzeszów, Poland
| | - Jacek Lubczak
- Department of Organic Chemistry, Rzeszów University of Technology, Rzeszów, Poland
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Chmiel E, Lubczak J. Oligoetherols and polyurethane foams obtained from metasilicic acid. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-017-2109-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Silicon-containing halogenated poly(amides) derived from diacids with aminoacidic and imidic moieties in the side chain: synthesis, characterization, optical studies and thermal properties. Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1714-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Jessop IA, Tundidor-Camba A, Terraza CA, González-Henríquez CM, Tagle LH. Synthesis and thermal, optical and morphological characterization of oligomeric polyamides based on thiophene and alkyl/phenyl-silane moieties. Study of the electrospun deposition process. J Appl Polym Sci 2016. [DOI: 10.1002/app.43702] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ignacio A. Jessop
- Facultad de Ciencias; Universidad de Tarapacá; Av. General Velásquez 1775 Arica Chile
| | - Alain Tundidor-Camba
- Facultad de Química; Pontificia Universidad Católica de Chile; Santiago P.O. Box 306 Chile
| | - Claudio A. Terraza
- Facultad de Química; Pontificia Universidad Católica de Chile; Santiago P.O. Box 306 Chile
| | - Carmen M. González-Henríquez
- Facultad de Ciencias Naturales, Matemáticas y del Medio Ambiente, Universidad Tecnológica Metropolitana; P.O. Box 9845, Correo 21 Santiago Chile
- Programa Institucional de Fomento a la Investigación, Desarrollo e Innovación, Universidad Tecnológica Metropolitana; P.O. Box 9845, Correo 21 Santiago Chile
| | - Luis H. Tagle
- Facultad de Química; Pontificia Universidad Católica de Chile; Santiago P.O. Box 306 Chile
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Terraza CA, Tagle LH, Tundidor-Camba A, González-Henríquez CM, Coll D, Sarabia MM. Silarylene-containing oligo(ether-amide)s based on bis(4-(4-amino phenoxy)phenyl)dimethylsilane. Effect of the dicarboxylic acid structure on some properties. RSC Adv 2015. [DOI: 10.1039/c5ra03529e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Inherent viscosity and MALDI-TOF analyses suggest the formation of oligomeric chains with sequences A–B, (A–B)2 and (A–B)3. The properties and therefore the eventual applications of these materials are modulated by the flexibility and the aromatic content of the chains.
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Affiliation(s)
- Claudio A. Terraza
- Pontificia Universidad Católica de Chile
- Facultad de Química
- Santiago
- Chile
| | - Luis H. Tagle
- Pontificia Universidad Católica de Chile
- Facultad de Química
- Santiago
- Chile
- Pontificia Universidad Católica de Chile
| | - Alain Tundidor-Camba
- Pontificia Universidad Católica de Chile
- Facultad de Química
- Santiago
- Chile
- Pontificia Universidad Católica de Chile
| | - Carmen M. González-Henríquez
- Universidad Tecnológica Metropolitana
- Facultad de Ciencias Naturales
- Matemáticas y del Medio Ambiente
- Santiago
- Chile
| | - Deysma Coll
- Pontificia Universidad Católica de Chile
- Facultad de Química
- Santiago
- Chile
- Pontificia Universidad Católica de Chile
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González-Henríquez CM, Terraza CA, Sarabia M. Theoretical and Experimental Vibrational Spectroscopic Investigation of Two R1R2-Diphenylsilyl-Containing Monomers and Their Optically Active Derivative Polymer. J Phys Chem A 2014; 118:1175-84. [PMID: 24471743 DOI: 10.1021/jp409178j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Carmen M. González-Henríquez
- Universidad Tecnológica Metropolitana, Facultad de Ciencias Naturales,
Matemáticas y del Medio Ambiente, Casilla 9845, Correo 21, Santiago, Chile
| | - Claudio A. Terraza
- Pontificia Universidad Católica de Chile, Facultad de Química, P.O. Box 306, Correo 22, Santiago, Chile
| | - Mauricio Sarabia
- Pontificia Universidad Católica de Chile, Facultad de Física, P.O. Box 601, Correo 22, Santiago, Chile
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Synthesis and characterization of new poly(amide)s derived from bis(4-(4-aminophenoxy)phenyl)methylphenylsilane and bis(4-carboxyphenyl)R1R2 silane acids. Polym Bull (Berl) 2012. [DOI: 10.1007/s00289-012-0824-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Tagle LH, Terraza CA, Leiva A, Coll D. Silicon-containing oligomeric poly(amides) with phthalimidyl-amide side groups: synthesis, characterization and thermal studies. HIGH PERFORM POLYM 2012. [DOI: 10.1177/0954008311431348] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Oligomeric poly(amide)s (PAs) were synthesized from monomeric diacids, which were obtained from phthalic anhydride and the amino acid glycine, l-alanine, l-phenylalanine, l-valine, l-leucine, l-isoleucine and p-aminobenzoic acid. The phthalimidyl acids (IA-1 to IA-7) reacted with 5-amino-isophthalic acid in order to obtain the monomeric diacids (1-7). Furthermore, the monomeric diacid 8 was obtained by direct reaction between phthalic anhydride and 5-amino-isophthalic acid. The isophthalic acid derivatives were reacted with bis(4-aminophenyl)diphenylsilane in order to obtain the PAs. Monomers and polymers were characterized by infrared and 1H-, 13C- and 29Si-NMR spectroscopy, elemental analysis and, when necessary, optical rotation. The results were in agreement with the proposed structures. The yields were generally good, but the ηinh values were low, indicating that the polymers were of oligomeric nature, namely, a chain of moderate molecular weight. The polymers were soluble in polar aprotic solvents and some of them were soluble in m-cresol and tetrahydrofuran. The glass transition temperatures ( Tg) values were obtained by differential scanning calorimetry, showing, in general, a decrease in value when the volume of the side chain of the amino acid moiety was increased. The thermal stability of the polymers was determined by dynamic thermogravimetry, showing good values of thermal decomposition temperatures (TDT), especially for those with aromatic residue in the amino acid, and for PA without amino acid. For PAs in which the side chain of the amino acid was larger, the TDT values were lower, probably due to the lack of symmetry and the length of the side chain, both of which have influence on the thermal stability.
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Affiliation(s)
- Luis H. Tagle
- Facultad de Química, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Claudio A. Terraza
- Facultad de Química, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Angel Leiva
- Facultad de Química, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Deysma Coll
- Facultad de Química, Pontificia Universidad Católica de Chile, Santiago, Chile
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Terraza CA, Tagle LH, Tundidor-Camba A, González-Henríquez C, Ortiz P, Coll D. Poly(amide)s obtained from 4-(4-((4-(4-aminophenoxy)phenyl)diphenylsilyl)phenoxy)benzenamine and dicarboxylic acids containing diphenylsilarylene units. Synthesis and characterization. Eur Polym J 2012. [DOI: 10.1016/j.eurpolymj.2012.01.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Henríquez CMG, Tagle LH, Terraza CA, González AB, Cabrera AL, Volkmann UG. Poly(ester)s and poly(amide)s with fluorene and diphenyl-silane units in the main chain: Effects of iodine doping on the structure and electrical conductivity. J Appl Polym Sci 2011. [DOI: 10.1002/app.35499] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Tundidor-Camba A, Terraza CA, Tagle LH, Coll D. Polyamides obtained by direct polycondesation of 4-[4-[9-[4-(4-aminophenoxy)-3-methyl-phenyl] fluoren-9-YL]-2-methyl-phenoxy]aniline with dicarboxylic acids based on a diphenyl-silane moiety. J Appl Polym Sci 2010. [DOI: 10.1002/app.33443] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Tagle LH, Terraza CA, Leiva A, Alvarez P. Polyesters based on two silarylene or germarylene moieties: Synthesis under phase-transfer conditions. J Appl Polym Sci 2009. [DOI: 10.1002/app.30645] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Synthesis and characterization of poly(urethanes) containing sulfone and silarylene or germarylene moieties. Polym Bull (Berl) 2009. [DOI: 10.1007/s00289-009-0106-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Tagle LH, Terraza CA, Leiva A, Devilat F. Synthesis, characterization, and thermal studies of polyamides and polyimides containing two silarylene units in the main chain. J Appl Polym Sci 2008. [DOI: 10.1002/app.28830] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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