Porous polymer monolith templated by small polymer molecules

Canadian Journal of Chemical Engineering - Tập 87 Số 4 - Trang 579-583 - 2009
Zhiwang Wu1, Kyle Frederic1, Mark Talarico2, D. De Kée1
1Department of Chemical and Biomolecular Engineering, Tulane Institute for Macromolecular Engineering and Science (TIMES), Tulane University, New Orleans, Louisiana 70118
2Micromeritics Instrument Corporation, One Micromeritics Drive, Norcross, Georgia 30093

Tóm tắt

AbstractPorous poly(ethylene glycol) diacrylate (PEGDA) monoliths have been prepared by UV‐initiated polymerization of PEGDA oligomer (Mn = 700 g/mol). In the mean time, the addition of hydrophobic poly(propylene oxide) (PPO, Mn = 725 g/mol) as porogen into an ethanol solution of PEGDA oligomer to form a homogenous mixture, causes a phase separation between PPO and PEGDA following removal of ethanol by UV heating. Porous PEGDA monolith was prepared by immediate heating at 300°C to remove PPO molecules from the as‐synthesized PEGDA/PPO hybrid. The micrometer pores of the PEGDA monolith have relatively concentrated pore size distribution according to the mercury intrusion porosimetry results and field emission scanning electron microscopy (FE‐SEM).

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Canadian Journal of Chemical Engineering

Tập 87 Số 4

579-583

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