Synthesis of Emulsion-templated Porous Polycaprolactone

Chenchen Xiao,Shengmiao Zhang,Jianding Chen,M Jawaid,El-R Kenawy

doi:10.1051/matecconf/20166706108

Chenchen Xiao, Shengmiao Zhang + Show 3 more

Open Access

https://doi.org/10.1051/matecconf/20166706108

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Abstract

Emulsion-templated porous materials have gained extensively in applications due to their low density and high porosity. However, by far most this type porous polymers are synthesized using conventional radical polymerization and most of the reactions are thermally initiated. Expanding the polymerization mechanisms available for emulsion-templated polymers synthesis is still highly desired. In this work, Diel-Alder (DA) reaction was used to synthesize emulsion-templated macroporous polycaprolactone (PCL). These macroporous polymers were prepared by DA reaction of polycaprolactone pendant with multiple furan group (PCL-furan) and 1,6-bis(maleimide)hexane (BisM) via a high internal 1 phase emulsion as template. The porous materials have a typical structure of emulsion-templated 2 materials.

Highlights

Emulsion-templated porous materials have gained extensively in applications such as scaffold for tissue engineering, water purification, solid phase supports for catalysis, and membranes for separation processes due to their low density and high porosity[1]
During the course of expanding the polymerization mechanisms available for synthesis of emulsion-templated polymers, we considered that the use of Diels-Alder (DA) reaction would be an attractive alternative
The ‫ڙ‬-Caprolactone (CL), furfuryl glycidyl ether (FGE), furfuryl alcohol (FAL), 1,5,7-Triazabicyclo [4.4.0] dec-5-ene (TBD) and Span 80 were purchased from Sigma-Aldrich and used as received

Summary

Introduction

Emulsion-templated porous materials have gained extensively in applications such as scaffold for tissue engineering, water purification, solid phase supports for catalysis, and membranes for separation processes due to their low density and high porosity[1]. In this method, high (or medium) internal phase emulsion HIPE (or MIPE) is often used as template where the volume fraction of the dispersed phase exceeds 74%[2]. E. maleic acid and its derivatives) to form a stable cyclohexene adduct[5] This reaction requires a very low energy to form a cyclohexene ring, can conducted at moderate temperature in gentle condition, and it allows the formation and functionalization of numerous molecules. The resulting porous materials have a typical structure of emulsion-templated materials

Experimental Section

Results and Discussion

Summary