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chromophores and aging

Project Leader
Rosenau Thomas, BOKU Project Leader
Duration:
01.01.2011-31.12.2014
Type of Research
Basic Research
Project partners
ÖZEPA, Gumpendorfer Str. 6, 1060 Wien, Austria.
Contact person: Thomas Timmel;
Function of the Project Partner: Partner
Staff
Potthast Antje, Co-worker
Henniges Ute, Co-worker
Hosoya Takashi, Co-worker
Korntner Philipp, Co-worker
Böhmdorfer Stefan, Co-worker
BOKU Research Units
Division of Chemistry of Renewable Resources
Funded by
Austrian Research Promotion Agency, Sensengasse 1, 1090 Wien, Austria
Abstract
Cellulosic fibers differ strongly in their optical properties. The influence of process parameters and storage conditions on chromophore formation is of general interest in modern papers and in historic materials.
In modern papers the understanding of chromophor structures will lead to improved methods for bleaching and fiber finishing.
In the historic context the understanding of cellulose aging is necessary in order to develop appropriate methods for paper conservation. A widely-used approach to judge conservation treatments is accelerated aging under defined conditions. However, whether the aging method chosen reflects the natural conditions is still a widely discussed topic.
The project aims at a deeper understanding of chromophore formation on a molecular level.
Keywords
organic chemistry; pulp and paper technology; wood chemistry; renovation, conservation;
aging; chromophor; fiber; paper; yellowing;
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