The relevance of structural features of cellulose and its interactions to dissolution, regeneration, gelation and plasticization phenomena
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/11946 |
Resumo: | Cellulose is the most abundant polymer and a very important renewable resource. Since cellulose cannot be shaped by melting, a major route for its use for novel materials, new chemical compounds and renewable energy must go via the solution state. Investigations during several decades have led to the identification of several solvents of notably different character. The mechanisms of dissolution in terms of intermolecular interactions have been discussed from early work but, even on fundamental aspects, conflicting and opposite views appear. In view of this, strategies for developing new solvent systems for various applications have remained obscure. There is for example a strong need for using forest products for higher value materials and for environmental and cost reasons to use water-based solvents. Several new water-based solvents have been developed recently but there is no consensus regarding the underlying mechanisms. Here we wish to address the most important mechanisms described in the literature and confront them with experimental observations. A broadened view is helpful for improving the current picture and thus cellulose derivatives and phenomena such as fiber dissolution, swelling, regeneration, plasticization and dispersion are considered. In addition to the matter of hydrogen bonding versus hydrophobic interactions, the role of ionization as well as some applications of new knowledge gained are highlighted. |
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The relevance of structural features of cellulose and its interactions to dissolution, regeneration, gelation and plasticization phenomenaNaoh/urea aqueous-solutionOil-in-waterNuclear-quadrupole relaxationLinked polyelectrolyte gelsSteam explosion methodDer-waals forcesIonic liquidsSodium-HydroxideX-rayTetrabutylammonium hydroxideCellulose is the most abundant polymer and a very important renewable resource. Since cellulose cannot be shaped by melting, a major route for its use for novel materials, new chemical compounds and renewable energy must go via the solution state. Investigations during several decades have led to the identification of several solvents of notably different character. The mechanisms of dissolution in terms of intermolecular interactions have been discussed from early work but, even on fundamental aspects, conflicting and opposite views appear. In view of this, strategies for developing new solvent systems for various applications have remained obscure. There is for example a strong need for using forest products for higher value materials and for environmental and cost reasons to use water-based solvents. Several new water-based solvents have been developed recently but there is no consensus regarding the underlying mechanisms. Here we wish to address the most important mechanisms described in the literature and confront them with experimental observations. A broadened view is helpful for improving the current picture and thus cellulose derivatives and phenomena such as fiber dissolution, swelling, regeneration, plasticization and dispersion are considered. In addition to the matter of hydrogen bonding versus hydrophobic interactions, the role of ionization as well as some applications of new knowledge gained are highlighted.Sodra Skogsagarnas Stiftelse, Stiftelsen Nils och Dorthi Troedssons forskningsfond; Swedish Research Council; FCT [UID/QUI/UI0313/2013]; COMPETE; Swedish Research Council VR [2015-04290]; WoodWisdom-ERA via the Swedish Governmental Agency for Innovation, VINNOVA [2013-05617]; [PTDC/AGR-TEC/4814/2014]; [IF/01005/2014]Royal Society of ChemistrySapientiaLindman, BjornMedronho, BrunoAlves, LuisCosta, CarolinaEdlund, HakanNorgren, Magnus2018-12-07T14:58:16Z2017-092017-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/11946eng1463-907610.1039/c7cp02409finfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:23:51Zoai:sapientia.ualg.pt:10400.1/11946Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:03:22.917515Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
The relevance of structural features of cellulose and its interactions to dissolution, regeneration, gelation and plasticization phenomena |
title |
The relevance of structural features of cellulose and its interactions to dissolution, regeneration, gelation and plasticization phenomena |
spellingShingle |
The relevance of structural features of cellulose and its interactions to dissolution, regeneration, gelation and plasticization phenomena Lindman, Bjorn Naoh/urea aqueous-solution Oil-in-water Nuclear-quadrupole relaxation Linked polyelectrolyte gels Steam explosion method Der-waals forces Ionic liquids Sodium-Hydroxide X-ray Tetrabutylammonium hydroxide |
title_short |
The relevance of structural features of cellulose and its interactions to dissolution, regeneration, gelation and plasticization phenomena |
title_full |
The relevance of structural features of cellulose and its interactions to dissolution, regeneration, gelation and plasticization phenomena |
title_fullStr |
The relevance of structural features of cellulose and its interactions to dissolution, regeneration, gelation and plasticization phenomena |
title_full_unstemmed |
The relevance of structural features of cellulose and its interactions to dissolution, regeneration, gelation and plasticization phenomena |
title_sort |
The relevance of structural features of cellulose and its interactions to dissolution, regeneration, gelation and plasticization phenomena |
author |
Lindman, Bjorn |
author_facet |
Lindman, Bjorn Medronho, Bruno Alves, Luis Costa, Carolina Edlund, Hakan Norgren, Magnus |
author_role |
author |
author2 |
Medronho, Bruno Alves, Luis Costa, Carolina Edlund, Hakan Norgren, Magnus |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Lindman, Bjorn Medronho, Bruno Alves, Luis Costa, Carolina Edlund, Hakan Norgren, Magnus |
dc.subject.por.fl_str_mv |
Naoh/urea aqueous-solution Oil-in-water Nuclear-quadrupole relaxation Linked polyelectrolyte gels Steam explosion method Der-waals forces Ionic liquids Sodium-Hydroxide X-ray Tetrabutylammonium hydroxide |
topic |
Naoh/urea aqueous-solution Oil-in-water Nuclear-quadrupole relaxation Linked polyelectrolyte gels Steam explosion method Der-waals forces Ionic liquids Sodium-Hydroxide X-ray Tetrabutylammonium hydroxide |
description |
Cellulose is the most abundant polymer and a very important renewable resource. Since cellulose cannot be shaped by melting, a major route for its use for novel materials, new chemical compounds and renewable energy must go via the solution state. Investigations during several decades have led to the identification of several solvents of notably different character. The mechanisms of dissolution in terms of intermolecular interactions have been discussed from early work but, even on fundamental aspects, conflicting and opposite views appear. In view of this, strategies for developing new solvent systems for various applications have remained obscure. There is for example a strong need for using forest products for higher value materials and for environmental and cost reasons to use water-based solvents. Several new water-based solvents have been developed recently but there is no consensus regarding the underlying mechanisms. Here we wish to address the most important mechanisms described in the literature and confront them with experimental observations. A broadened view is helpful for improving the current picture and thus cellulose derivatives and phenomena such as fiber dissolution, swelling, regeneration, plasticization and dispersion are considered. In addition to the matter of hydrogen bonding versus hydrophobic interactions, the role of ionization as well as some applications of new knowledge gained are highlighted. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09 2017-09-01T00:00:00Z 2018-12-07T14:58:16Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.1/11946 |
url |
http://hdl.handle.net/10400.1/11946 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1463-9076 10.1039/c7cp02409f |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Royal Society of Chemistry |
publisher.none.fl_str_mv |
Royal Society of Chemistry |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133268004569088 |