Abstract
Black liquor is formed as a side product of the pulping
industry, and typically it is used as a source of energy
for the mill. Black liquor contains a significant amount
of carboxylic acids, which have low heat values.
Therefore, the carboxylic acids may be separated from
black liquor and valorized in a number of biopolymer
applications. In this study, several black liquor
fractions were polymerized and the obtained polymers were
characterized. The fractions were, for the first time,
successfully polymerized. Polymers with Tg -1-49 °C and
Mw 750-2400 g/mol were obtained. The best results (Tg 49
°C, Mw 2400 g/mol) were obtained using fraction, which
had the most even OH/COOH ratio. Potential applications
for the polymeric materials obtained from black liquor
are foreseen to be, hotmelt adhesives, plastizicer and
thermosets or functional materials after further
modification of OH-groups.
| Original language | English |
|---|---|
| Publication status | Published - 2013 |
| MoE publication type | Not Eligible |
| Event | 2013 Marcus Wallenberg Prize Symposium - Stockholm, Sweden Duration: 24 Sep 2013 → 24 Sep 2013 |
Conference
| Conference | 2013 Marcus Wallenberg Prize Symposium |
|---|---|
| Country | Sweden |
| City | Stockholm |
| Period | 24/09/13 → 24/09/13 |
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Pirttimaa, M. (2013). Polymers derived from isolated hydroxy acids obtained from hardwood and softwood black liquor. Poster session presented at 2013 Marcus Wallenberg Prize Symposium, Stockholm, Sweden.