Chitosan and Its Carboxymethyl-Based Membranes Produced by Crosslinking with Magnesium Phytate
Adam Zając,
Wojciech Sąsiadek,
Lucyna Dymińska,
Paulina Ropuszyńska-Robak,
Jerzy Hanuza,
Maciej Ptak,
Szymon Smółka,
Radosław Lisiecki,
Katarzyna Skrzypczak
Affiliations
Adam Zając
Department of Bioorganic Chemistry, Faculty of Production Engineering, Wroclaw University of Economics and Business, 118-120 Komandorska Str., 53-345 Wrocław, Poland
Wojciech Sąsiadek
Department of Bioorganic Chemistry, Faculty of Production Engineering, Wroclaw University of Economics and Business, 118-120 Komandorska Str., 53-345 Wrocław, Poland
Lucyna Dymińska
Department of Bioorganic Chemistry, Faculty of Production Engineering, Wroclaw University of Economics and Business, 118-120 Komandorska Str., 53-345 Wrocław, Poland
Paulina Ropuszyńska-Robak
Department of Bioorganic Chemistry, Faculty of Production Engineering, Wroclaw University of Economics and Business, 118-120 Komandorska Str., 53-345 Wrocław, Poland
Jerzy Hanuza
Institute of Low Temperature and Structure Research, 2 Okólna Str., 50-422 Wrocław, Poland
Maciej Ptak
Institute of Low Temperature and Structure Research, 2 Okólna Str., 50-422 Wrocław, Poland
Szymon Smółka
Institute of Low Temperature and Structure Research, 2 Okólna Str., 50-422 Wrocław, Poland
Radosław Lisiecki
Institute of Low Temperature and Structure Research, 2 Okólna Str., 50-422 Wrocław, Poland
Katarzyna Skrzypczak
Faculty of Chemistry, Wrocław University of Science and Technology, 27 Wybrzeże Wyspiańskiego Str., 50-370 Wrocław, Poland
Membranes produced by crosslinking chitosan with magnesium phytate were prepared using highly deacetylated chitosan and its N-carboxymethyl, O-carboxymethyl and N,O-carboxymethyl derivatives. The conditions of the membrane production were described. IR, Raman, electron absorption and emission spectra were measured and analyzed for all the substrates. It was found that O-carboxymethyl chitosan derivative is the most effectively crosslinked by magnesium phytate, and the films formed on this substrate exhibit good mechanical parameters of strength, resistance and stability. Strong O–H···O hydrogen bonds proved to be responsible for an effective crosslinking process. Newly discovered membrane types produced from chitosan and magnesium phytate were characterized as morphologically homogenous and uniform by scanning electron microscopy (SEM) and IR measurements. Due to their good covering properties, they do not have pores or channels and are proposed as packaging materials.
