Biodegradable porous material prepared from the eutectic mixture of L-lactic acid and delta-valerolactone
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초록
내용
A biodegradable porous material was synthesized from eutectic mixture of L-lactic acid (LLA) with delta-valerolactone (VL) in 20:80 molar ratio via high internal phase emulsion polymerization (HIPE). Eutectic molar ratio of the mixtures were investigated by using differential scanning calorimetry (DSC). The polyHIPEs were prepared by dropwise addition of tetradecane as disperse phase into the eutectic mixture and surfactant. Ring Opening Polymerization (ROP) of eutectic mixture was continuously carried out organocatalysts 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) and methanesulfonic acid (MSA) at 37 °C and preferred benzyl alcohol (BnOH) as an initiator. The resulting monoliths exhibited the pore structure where pores are interconnected. Brunauer–Emmett–Teller (BET) and Barrett-Joyner-Halenda (BJH) equation were used to characterize surface area, pore volume, and pore size of the monoliths.