Films from Glyoxal-Crosslinked Spruce Galactoglucomannans Plasticized with Sorbitol
Films were prepared from a renewable and biodegradable forest biorefinery product, spruce O-acetyl-galactoglucomannans (GGMs), crosslinked with glyoxal. For the first time, cohesive and self-standing films were obtained from GGM without the addition of polyol plasticizer. In addition, glyoxal-crossl...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2012/482810 |
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| author | Kirsi S. Mikkonen Mari I. Heikkilä Stefan M. Willför Maija Tenkanen |
| author_facet | Kirsi S. Mikkonen Mari I. Heikkilä Stefan M. Willför Maija Tenkanen |
| author_sort | Kirsi S. Mikkonen |
| collection | DOAJ |
| description | Films were prepared from a renewable and biodegradable forest biorefinery product, spruce O-acetyl-galactoglucomannans (GGMs), crosslinked with glyoxal. For the first time, cohesive and self-standing films were obtained from GGM without the addition of polyol plasticizer. In addition, glyoxal-crosslinked films were prepared using sorbitol at 10, 20, 30, and 40% (wt.-% of GGM). Glyoxal clearly strengthened the GGM matrix, as detected by tensile testing and dynamic mechanical analysis. The elongation at break of films slightly increased, and Young's modulus decreased with increasing sorbitol content. Interestingly, the tensile strength of films was constant with the increased plasticizer content. The effect of sorbitol on water sorption and water vapor permeability (WVP) depended on relative humidity (RH). At low RH, the addition of sorbitol significantly decreased the WVP of films. The glyoxal-crosslinked GGM films containing 20% sorbitol exhibited the lowest oxygen permeability (OP) and WVP of the studied films and showed satisfactory mechanical performance. |
| format | Article |
| id | doaj-art-ba389319c66c4c39a816a067f16c19fe |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-ba389319c66c4c39a816a067f16c19fe2025-02-03T05:46:19ZengWileyInternational Journal of Polymer Science1687-94221687-94302012-01-01201210.1155/2012/482810482810Films from Glyoxal-Crosslinked Spruce Galactoglucomannans Plasticized with SorbitolKirsi S. Mikkonen0Mari I. Heikkilä1Stefan M. Willför2Maija Tenkanen3Department of Food and Environmental Sciences, University of Helsinki, P.O. Box 27, 00014 Helsinki, FinlandDepartment of Food and Environmental Sciences, University of Helsinki, P.O. Box 27, 00014 Helsinki, FinlandProcess Chemistry Centre, Åbo Akademi University, Porthansgatan 3, 20500 Åbo, FinlandDepartment of Food and Environmental Sciences, University of Helsinki, P.O. Box 27, 00014 Helsinki, FinlandFilms were prepared from a renewable and biodegradable forest biorefinery product, spruce O-acetyl-galactoglucomannans (GGMs), crosslinked with glyoxal. For the first time, cohesive and self-standing films were obtained from GGM without the addition of polyol plasticizer. In addition, glyoxal-crosslinked films were prepared using sorbitol at 10, 20, 30, and 40% (wt.-% of GGM). Glyoxal clearly strengthened the GGM matrix, as detected by tensile testing and dynamic mechanical analysis. The elongation at break of films slightly increased, and Young's modulus decreased with increasing sorbitol content. Interestingly, the tensile strength of films was constant with the increased plasticizer content. The effect of sorbitol on water sorption and water vapor permeability (WVP) depended on relative humidity (RH). At low RH, the addition of sorbitol significantly decreased the WVP of films. The glyoxal-crosslinked GGM films containing 20% sorbitol exhibited the lowest oxygen permeability (OP) and WVP of the studied films and showed satisfactory mechanical performance.http://dx.doi.org/10.1155/2012/482810 |
| spellingShingle | Kirsi S. Mikkonen Mari I. Heikkilä Stefan M. Willför Maija Tenkanen Films from Glyoxal-Crosslinked Spruce Galactoglucomannans Plasticized with Sorbitol International Journal of Polymer Science |
| title | Films from Glyoxal-Crosslinked Spruce Galactoglucomannans Plasticized with Sorbitol |
| title_full | Films from Glyoxal-Crosslinked Spruce Galactoglucomannans Plasticized with Sorbitol |
| title_fullStr | Films from Glyoxal-Crosslinked Spruce Galactoglucomannans Plasticized with Sorbitol |
| title_full_unstemmed | Films from Glyoxal-Crosslinked Spruce Galactoglucomannans Plasticized with Sorbitol |
| title_short | Films from Glyoxal-Crosslinked Spruce Galactoglucomannans Plasticized with Sorbitol |
| title_sort | films from glyoxal crosslinked spruce galactoglucomannans plasticized with sorbitol |
| url | http://dx.doi.org/10.1155/2012/482810 |
| work_keys_str_mv | AT kirsismikkonen filmsfromglyoxalcrosslinkedsprucegalactoglucomannansplasticizedwithsorbitol AT mariiheikkila filmsfromglyoxalcrosslinkedsprucegalactoglucomannansplasticizedwithsorbitol AT stefanmwillfor filmsfromglyoxalcrosslinkedsprucegalactoglucomannansplasticizedwithsorbitol AT maijatenkanen filmsfromglyoxalcrosslinkedsprucegalactoglucomannansplasticizedwithsorbitol |