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Cyclodextrin-grafted cellulose: Physico-chemical characterization

Medronho, B.; Andrade, R.; Vivod, V.; Ostlund, A.; Miguel, M. G.; Lindman, Björn LU ; Voncina, B. and Valente, A. J. M. (2013) In Carbohydrate Polymers 93(1). p.324-330
Abstract
Cyclodextrins (CDs) can form inclusion complexes with a wide variety of molecules making them very attractive in different areas, such as pharmaceutics, biochemistry, food chemistry and textile. In this communication we will report on the physico-chemical characterization of cellulose modified with CDs by means of infra-red spectroscopy (FTIR), cross polarization magic angle spinning solid state nuclear magnetic resonance (CP-MAS NMR), polarized optical microscopy (POM) and thermal gravimetric analysis (TGA). Both CP-MAS NMR and FTIR indicate that CDs are chemically attached to cellulose backbone through the formation of ester bonds. Furthermore, the CD-grafted cellulose was dissolved in a "superphosphoric" acid solution but, despite the... (More)
Cyclodextrins (CDs) can form inclusion complexes with a wide variety of molecules making them very attractive in different areas, such as pharmaceutics, biochemistry, food chemistry and textile. In this communication we will report on the physico-chemical characterization of cellulose modified with CDs by means of infra-red spectroscopy (FTIR), cross polarization magic angle spinning solid state nuclear magnetic resonance (CP-MAS NMR), polarized optical microscopy (POM) and thermal gravimetric analysis (TGA). Both CP-MAS NMR and FTIR indicate that CDs are chemically attached to cellulose backbone through the formation of ester bonds. Furthermore, the CD-grafted cellulose was dissolved in a "superphosphoric" acid solution but, despite the increase of hydrophilicity due to the modification, POM revealed that grafted cellulose was less soluble when compared to the unmodified polymer. The formation of a complex CD-cellulose network is suggested. (C) 2012 Elsevier Ltd. All rights reserved. (Less)
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organization
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type
Contribution to journal
publication status
published
subject
keywords
Cellulose, Cyclodextrin, Polycarboxylic acid, Dissolution, FTIR
in
Carbohydrate Polymers
volume
93
issue
1
pages
324 - 330
publisher
Elsevier
external identifiers
  • wos:000316512900045
  • scopus:84874644855
ISSN
0144-8617
DOI
10.1016/j.carbpol.2012.08.109
language
English
LU publication?
yes
id
454dcc6f-7cb5-45b8-8dde-f7e3a44570e8 (old id 3765141)
date added to LUP
2013-05-20 09:16:54
date last changed
2019-02-20 02:56:26
@article{454dcc6f-7cb5-45b8-8dde-f7e3a44570e8,
  abstract     = {Cyclodextrins (CDs) can form inclusion complexes with a wide variety of molecules making them very attractive in different areas, such as pharmaceutics, biochemistry, food chemistry and textile. In this communication we will report on the physico-chemical characterization of cellulose modified with CDs by means of infra-red spectroscopy (FTIR), cross polarization magic angle spinning solid state nuclear magnetic resonance (CP-MAS NMR), polarized optical microscopy (POM) and thermal gravimetric analysis (TGA). Both CP-MAS NMR and FTIR indicate that CDs are chemically attached to cellulose backbone through the formation of ester bonds. Furthermore, the CD-grafted cellulose was dissolved in a "superphosphoric" acid solution but, despite the increase of hydrophilicity due to the modification, POM revealed that grafted cellulose was less soluble when compared to the unmodified polymer. The formation of a complex CD-cellulose network is suggested. (C) 2012 Elsevier Ltd. All rights reserved.},
  author       = {Medronho, B. and Andrade, R. and Vivod, V. and Ostlund, A. and Miguel, M. G. and Lindman, Björn and Voncina, B. and Valente, A. J. M.},
  issn         = {0144-8617},
  keyword      = {Cellulose,Cyclodextrin,Polycarboxylic acid,Dissolution,FTIR},
  language     = {eng},
  number       = {1},
  pages        = {324--330},
  publisher    = {Elsevier},
  series       = {Carbohydrate Polymers},
  title        = {Cyclodextrin-grafted cellulose: Physico-chemical characterization},
  url          = {http://dx.doi.org/10.1016/j.carbpol.2012.08.109},
  volume       = {93},
  year         = {2013},
}