Details

Autor(en) / Beteiligte

• Jiang, Qingwei
• Xu, Jing
• Li, Tianduo
• Qiao, Congde
• Li, Yulong

Titel

Synthesis and Antibacterial Activities of Quaternary Ammonium Salt of Gelatin

Ist Teil von

• Journal of macromolecular science. Physics, 2014-01, Vol.53 (1), p.133-141

Ort / Verlag

Philadelphia, PA: Taylor & Francis Group

Erscheinungsjahr

2014

Quelle

Taylor & Francis

Beschreibungen/Notizen

• Cationic proteins with tunable chemical and physical properties were prepared from 2,3-epoxypropyl trimethyl ammonium chloride (EPTAC) and gelatin. Measurement of grafting density indicated that the molar ratio of EPTAC/amine groups (NH 2 ) in the gelatin chains played a key role in determining the compound's structure. Fourier transform infrared (FTIR) and 13 C NMR results showed that the -NH 2 functional groups of gelatin were totally consumed when the molar ratio of EPTAC/NH 2 was increased to 2.5:1. Hydroxyl (‒OH) functional groups of gelatin were also depleted upon further increasing the molar ratio of EPTAC/NH 2 . Antibacterial activity and thermal properties of the product polymers changed with the modification of the polymers' structure.