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Citation: Ye Shu-Ji, Chen Ming-Cai, Huang Yu-Hui, Cong Guang-Min. Absorption of Small Molecules into Polyurethane in Supercritical Carbon Dioxide[J]. Acta Physico-Chimica Sinica, ;2000, 16(02): 145-152. doi: 10.3866/PKU.WHXB20000210 shu

Absorption of Small Molecules into Polyurethane in Supercritical Carbon Dioxide

1.
Guangzhou Institute of Chemistry,Academia Sinica,Guangzhou 510650

Received Date: 31 May 1999
Available Online: 15 February 2000

A systematic study was undertaken in supercritical carbon dioxide to absorb thymol, benzyl carbinol and alcohol into polyurethane by a simple gravimetric method. The uptake of small molecule in PU had been observed with the changes of the factors such as temperature, pressure of supercritical carbon dioxide, absorption time and dimension of PU. Moreover, the mass change of PU after treatment was observed and the impregnation mechanism of small molecule was discussed to explain the experimental results.
- Supercritical carbon dioxide
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