Synthesis of trifunctional graft polymer polyether polyols employing a silica based gel as non-aqueous dispersant

Currently, the PU industry is developing new products with enhanced physical, mechanical and structuralproperties. One of the specialties that is attracting more and more attention from managers and enterprises allover the world are the PUs based on polymer polyether polyols (graft polyols).In this...

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Authors: Izarra Pérez, Irene, Simón, Diego, Molina Motiño, María, Rodríguez Romero, Juan Francisco, Carmona Franco, Manuel Salvador
Format: article
Publication Date:2019
Country:España
Institution:Universidad de Castilla-La Mancha
Repository:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/21778
Online Access:https://doi.org/10.1016/j.eurpolymj.2019.03.045
http://hdl.handle.net/10578/21778
Access Level:Open access
Keyword:graft polyol
polyurethane
silica gel
non-aqueous dispersant
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spelling Synthesis of trifunctional graft polymer polyether polyols employing a silica based gel as non-aqueous dispersantIzarra Pérez, IreneSimón, DiegoMolina Motiño, MaríaRodríguez Romero, Juan FranciscoCarmona Franco, Manuel Salvadorgraft polyolpolyurethanesilica gelnon-aqueous dispersantCurrently, the PU industry is developing new products with enhanced physical, mechanical and structuralproperties. One of the specialties that is attracting more and more attention from managers and enterprises allover the world are the PUs based on polymer polyether polyols (graft polyols).In this work, the synthesis of graft polyols was developed employing a non-aqueous dispersant (NAD) basedon silica gel, which contains in its chemical structure segments with a great affinity for the solid polymericparticles and other segment having a strong affinity for the hydroxyl groups of the liquid polyol. The combi-nation of both polar and non-polar characteristics ensures the stability of the resulting polymer dispersion andprevent the sedimentation and the coalescence of the polymer particles. By using this NAD it was possible tosynthesize trifunctional polymer polyether polyol (PPP) from Styrene and containing up to 38.69 wt% of solids.The optimal reaction conditions have been stablished using a concentration of 1.5 wt% NAD, 4 wt% of initiatorrespect to the monomer amount and a polymerization temperature of 80 °C. The viscosity of the optimal PPP(1930 mPa·s) and the particle size (dv0.5of 5.427µm and dn0.5of 1.711µm) were in the range of graft polyolsavailable in the market for similar solids content, with the additional advantage of employing a lower quantity ofNAD and a softer reaction temperature than those employed in the industrial process (110 °C)Elsevier201920192019info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://doi.org/10.1016/j.eurpolymj.2019.03.045http://hdl.handle.net/10578/21778reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/217782026-05-27T07:36:41Z
dc.title.none.fl_str_mv Synthesis of trifunctional graft polymer polyether polyols employing a silica based gel as non-aqueous dispersant
title Synthesis of trifunctional graft polymer polyether polyols employing a silica based gel as non-aqueous dispersant
spellingShingle Synthesis of trifunctional graft polymer polyether polyols employing a silica based gel as non-aqueous dispersant
Izarra Pérez, Irene
graft polyol
polyurethane
silica gel
non-aqueous dispersant
title_short Synthesis of trifunctional graft polymer polyether polyols employing a silica based gel as non-aqueous dispersant
title_full Synthesis of trifunctional graft polymer polyether polyols employing a silica based gel as non-aqueous dispersant
title_fullStr Synthesis of trifunctional graft polymer polyether polyols employing a silica based gel as non-aqueous dispersant
title_full_unstemmed Synthesis of trifunctional graft polymer polyether polyols employing a silica based gel as non-aqueous dispersant
title_sort Synthesis of trifunctional graft polymer polyether polyols employing a silica based gel as non-aqueous dispersant
dc.creator.none.fl_str_mv Izarra Pérez, Irene
Simón, Diego
Molina Motiño, María
Rodríguez Romero, Juan Francisco
Carmona Franco, Manuel Salvador
author Izarra Pérez, Irene
author_facet Izarra Pérez, Irene
Simón, Diego
Molina Motiño, María
Rodríguez Romero, Juan Francisco
Carmona Franco, Manuel Salvador
author_role author
author2 Simón, Diego
Molina Motiño, María
Rodríguez Romero, Juan Francisco
Carmona Franco, Manuel Salvador
author2_role author
author
author
author
dc.subject.none.fl_str_mv graft polyol
polyurethane
silica gel
non-aqueous dispersant
topic graft polyol
polyurethane
silica gel
non-aqueous dispersant
description Currently, the PU industry is developing new products with enhanced physical, mechanical and structuralproperties. One of the specialties that is attracting more and more attention from managers and enterprises allover the world are the PUs based on polymer polyether polyols (graft polyols).In this work, the synthesis of graft polyols was developed employing a non-aqueous dispersant (NAD) basedon silica gel, which contains in its chemical structure segments with a great affinity for the solid polymericparticles and other segment having a strong affinity for the hydroxyl groups of the liquid polyol. The combi-nation of both polar and non-polar characteristics ensures the stability of the resulting polymer dispersion andprevent the sedimentation and the coalescence of the polymer particles. By using this NAD it was possible tosynthesize trifunctional polymer polyether polyol (PPP) from Styrene and containing up to 38.69 wt% of solids.The optimal reaction conditions have been stablished using a concentration of 1.5 wt% NAD, 4 wt% of initiatorrespect to the monomer amount and a polymerization temperature of 80 °C. The viscosity of the optimal PPP(1930 mPa·s) and the particle size (dv0.5of 5.427µm and dn0.5of 1.711µm) were in the range of graft polyolsavailable in the market for similar solids content, with the additional advantage of employing a lower quantity ofNAD and a softer reaction temperature than those employed in the industrial process (110 °C)
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.eurpolymj.2019.03.045
http://hdl.handle.net/10578/21778
url https://doi.org/10.1016/j.eurpolymj.2019.03.045
http://hdl.handle.net/10578/21778
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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