Blends of poly(ethylene oxide) with chitosane acetate salt and with dibuturylchitin: Structure and morphology

Wrzyszczyński, Andrzej; Qü, Xia; Szosland, L.; Adamczak, E.; Lindén, Lars‐Åke; Rabek, Jan F.

doi:10.1007/bf00306245

Cited by 28 publications

(11 citation statements)

References 20 publications

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“…This manifests in a noticeable decrease [55]. The DSC heating thermogram obtained for chitin dipentanoate shows the existence of an endothermic peak in the vicinity of 75°C, a value which is similar to that reported for dibutyrylchitin [56]. The glass temperature (T g ) was found to be 150°C.…”

Section: Resultsmentioning

confidence: 66%

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Chitin dipentanoate as the new technologically usable biomaterial

Skołucka-Szary¹,

Ramięga²,

Piaskowska³

et al. 2015

Materials Science and Engineering: C

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Section: Resultsmentioning

confidence: 66%

“…Alternative methods of chitin ester preparation include the synthesis in the presence of fatty acids in trifluoroacetic anhydrides [35] Materials Science and Engineering C 55 (2015) [50][51][52][53][54][55][56][57][58][59][60] and acylation with butyric acid in the presence of trifluoroacetic anhydride/phosphoric acid system [36].…”

Section: Introductionmentioning

confidence: 99%

Chitin dipentanoate as the new technologically usable biomaterial

Skołucka-Szary¹,

Ramięga²,

Piaskowska³

et al. 2015

Materials Science and Engineering: C

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“…On the other hand, on chitosan glycerol film (B) (Fig. 2), the peak at 1,560 cm −1 has been previously attributed to the presence of NH 3 + ••• CH 3 COO ‐ in chitosan (Wrzyszczynski et al. 1995).…”

Section: Resultsmentioning

confidence: 80%

Effect of Polygodial on Mechanical, Optical and Barrier Properties of Chitosan Films

Moreno‐Osorio¹,

García²,

Villalobos‐Carvajal³

2010

Journal of Food Processing and Preservation

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The mechanical, optical and barrier properties of chitosan films containing polygodial (0.0, 2.7, 13.9, 25.0 mg/g of chitosan) were studied. Water vapor permeability (WVP), tensile strength, percentage elongation at break, CIELab color parameters, hue angle and chroma of films were determined. Fourier transform infrared (FTIR) was also performed to determine functional group interaction between the matrix and polygodial added. The use of polygodial resulted in stronger films without losing their extensibility and with low WVP. Films became darker with yellow‐green coloration with increasing polygodial concentration. Polygodial added to chitosan films did not have any interaction with the amino groups of chitosan as measured by FTIR. Polygodial as a natural dialdehyde can effectively be applied to enhance some physical properties of edible films prepared with chitosan. PRACTICAL APPLICATIONS There has been an increased interest in the study of edible–biodegradable packaging films during the last decade, offering an alternative and partial solution to the problem of accumulation of solid waste composed of synthetic inert polymers, and chitosan films has been studied with this purpose. Furthermore, replacing synthetic additives by natural compounds such us polygodial can be a suitable manner to improve some physical properties of those chitosan films.

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“…As adblends to chitosan there are applied the following compounds: poly(vinyl alcohol) (Fambri, Pegoretti, Fenner, Incardona, & Migliaresi, 1997;Kim, Oark, & Kim, 2003;Mucha, Ludwiczak, & Kawiń ska, 2005;Schellekens & Bastiansen, 1991;Zhao et al, 2003) as well as polylactide and poly(lactid acid) (Messai et al, 2005;Peesan, Supaphal, & Rujiravanit, 2005). Great hopes are connected with chitosan blends containing cellulose and its derivatives (Hasagawa, Isogai, Onabe, Usuda, & Atalla, 1992;Twu, Huang, Chang, & Wang ,2003) and with poly(ethylene oxide) (Amiji, 1995;Wrzyszczyń ski et al, 1995;Mucha, Piekielna, & Wieczorek, 1999). The following systems: chitosan/starch and chitosan/pullulan are also investigated (Lazaridon & Biliadderis, 2002) as well as many others.…”

Section: Introductionmentioning

confidence: 98%