Journal
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
Volume 67, Issue 18, Pages 1051-1058Publisher
TAYLOR & FRANCIS AS
DOI: 10.1080/00914037.2017.1417287
Keywords
Electrospinning; graft copolymers; nanofiber; polyesters; ring-opening polymerization
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Funding
- Canakkale Onsekiz Mart University [1266]
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Gelatin-polycaprolactone hybrid materials are being used in medicinal applications such as drug delivery, tissue engineering applications nowadays. In this study, gelatin-polycaprolactone graft copolymer was synthesized through ring-opening polymerization process instead of conventional grafting methods using potentially cytotoxic crosslinkers, or applying plasma, aminolysis reactions. Gelatin nanofiber (GNF) was produced by electrospinning process before immobilization of poly(epsilon-caprolactone). Ring-opening polymerization of epsilon-caprolactone was successfully initiated on the surface of GNF using tin(IV) isopropoxide and gelatin (primary amine functional groups) as an initiator and a coinitiator, respectively. The growing of polymer chains on GNF was indicated by both scanning electron microscope and energy-dispersive X-ray spectroscopy. Chemical structure was characterized through infrared spectrum, thermal behaviors and the material composition was analyzed with thermogravimetric analysis, wettability and hydrophilicity were determined by water contact angle measurements. [GRAPHICS] .
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