Aqueous Polyurethane Dispersions - Sodium Alginate Based Blends and Hydrogels

Tamara Travinskaya; Yuri Savelyev

doi:doi:10.11648/j.ajhc.20160201.14

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Aqueous Polyurethane Dispersions - Sodium Alginate Based Blends and Hydrogels

Tamara Travinskaya, Yuri Savelyev

Published in American Journal of Heterocyclic Chemistry (Volume 2, Issue 1)

Received: 28 October 2016 Accepted: 24 November 2016 Published: 5 January 2017

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Abstract

The film forming binary polyurethane-alginate blends and based hydrogels, containing different alginate content, were prepared by blending of anionic polyurethane dispersions (APD) and aqueous sodium alginate (SA) solution. Binary blends of APD and SA were cast in film form from mixed aqueous polymer solutions by solvent evaporation. Post-treatment of as-cast films with CaCl₂ leaded tot he hydrogels formation. The thermal stability, thermal transition, water-swelling, mechanical properties and gas permeance for O₂ and CO₂ of two kinds of films were examined according to alginate content. Irrespective of composition, blend samples gave a single glass transition temperature (T_g), indicating the formation of thermodynamically miscible phase. The shift of T_g in hydrogels to the higher temperatures indicated the possible simultaneous occurrence of a chelate complexation of SA with Ca⁺² cations, cross-links between polyurethane chains, having carboxylate anions, with Ca²⁺ cations, and interactions between SA and anionic polyurethane, resulting in the formation of an semi-interpenetrating network structure. The relationships between the films structure, their physicochemical properties and alginate content have been discussed.

Published in	American Journal of Heterocyclic Chemistry (Volume 2, Issue 1)
DOI	10.11648/j.ajhc.20160201.14
Page(s)	20-25
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2017. Published by Science Publishing Group

Keywords

Sodium Alginate, Polyurethane Ionomer, Hydrogels, Blended Films

References

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[9]	Travinskaya, T. V., Savelyev Yu. V. (2006). Aqueous polyurethane-alginate compositions: Peculiarities of behaviour and performance. European Polymer Journal, 42, 388-394.
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APA Style

Tamara Travinskaya, Yuri Savelyev. (2017). Aqueous Polyurethane Dispersions - Sodium Alginate Based Blends and Hydrogels. American Journal of Heterocyclic Chemistry, 2(1), 20-25. https://doi.org/10.11648/j.ajhc.20160201.14

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ACS Style

Tamara Travinskaya; Yuri Savelyev. Aqueous Polyurethane Dispersions - Sodium Alginate Based Blends and Hydrogels. Am. J. Heterocycl. Chem. 2017, 2(1), 20-25. doi: 10.11648/j.ajhc.20160201.14

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AMA Style

Tamara Travinskaya, Yuri Savelyev. Aqueous Polyurethane Dispersions - Sodium Alginate Based Blends and Hydrogels. Am J Heterocycl Chem. 2017;2(1):20-25. doi: 10.11648/j.ajhc.20160201.14

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@article{10.11648/j.ajhc.20160201.14,
  author = {Tamara Travinskaya and Yuri Savelyev},
  title = {Aqueous Polyurethane Dispersions - Sodium Alginate Based Blends and Hydrogels},
  journal = {American Journal of Heterocyclic Chemistry},
  volume = {2},
  number = {1},
  pages = {20-25},
  doi = {10.11648/j.ajhc.20160201.14},
  url = {https://doi.org/10.11648/j.ajhc.20160201.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajhc.20160201.14},
  abstract = {The film forming binary polyurethane-alginate blends and based hydrogels, containing different alginate content, were prepared by blending of anionic polyurethane dispersions (APD) and aqueous sodium alginate (SA) solution. Binary blends of APD and SA were cast in film form from mixed aqueous polymer solutions by solvent evaporation. Post-treatment of as-cast films with CaCl2 leaded tot he hydrogels formation. The thermal stability, thermal transition, water-swelling, mechanical properties and gas permeance for O2 and CO2 of two kinds of films were examined according to alginate content. Irrespective of composition, blend samples gave a single glass transition temperature (Tg), indicating the formation of thermodynamically miscible phase. The shift of Tg in hydrogels to the higher temperatures indicated the possible simultaneous occurrence of a chelate complexation of SA with Ca+2 cations, cross-links between polyurethane chains, having carboxylate anions, with Ca2+ cations, and interactions between SA and anionic polyurethane, resulting in the formation of an semi-interpenetrating network structure. The relationships between the films structure, their physicochemical properties and alginate content have been discussed.},
 year = {2017}
}

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TY  - JOUR
T1  - Aqueous Polyurethane Dispersions - Sodium Alginate Based Blends and Hydrogels
AU  - Tamara Travinskaya
AU  - Yuri Savelyev
Y1  - 2017/01/05
PY  - 2017
N1  - https://doi.org/10.11648/j.ajhc.20160201.14
DO  - 10.11648/j.ajhc.20160201.14
T2  - American Journal of Heterocyclic Chemistry
JF  - American Journal of Heterocyclic Chemistry
JO  - American Journal of Heterocyclic Chemistry
SP  - 20
EP  - 25
PB  - Science Publishing Group
SN  - 2575-5722
UR  - https://doi.org/10.11648/j.ajhc.20160201.14
AB  - The film forming binary polyurethane-alginate blends and based hydrogels, containing different alginate content, were prepared by blending of anionic polyurethane dispersions (APD) and aqueous sodium alginate (SA) solution. Binary blends of APD and SA were cast in film form from mixed aqueous polymer solutions by solvent evaporation. Post-treatment of as-cast films with CaCl2 leaded tot he hydrogels formation. The thermal stability, thermal transition, water-swelling, mechanical properties and gas permeance for O2 and CO2 of two kinds of films were examined according to alginate content. Irrespective of composition, blend samples gave a single glass transition temperature (Tg), indicating the formation of thermodynamically miscible phase. The shift of Tg in hydrogels to the higher temperatures indicated the possible simultaneous occurrence of a chelate complexation of SA with Ca+2 cations, cross-links between polyurethane chains, having carboxylate anions, with Ca2+ cations, and interactions between SA and anionic polyurethane, resulting in the formation of an semi-interpenetrating network structure. The relationships between the films structure, their physicochemical properties and alginate content have been discussed.
VL  - 2
IS  - 1
ER  -

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Author Information

Tamara Travinskaya

Institute of Macromolecular Chemistry NAS of Ukraine, Department of Heterochain Polymers and Interpenetrating Networks, Kiev, Ukraine
Yuri Savelyev

Institute of Macromolecular Chemistry NAS of Ukraine, Department of Heterochain Polymers and Interpenetrating Networks, Kiev, Ukraine

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Plain Text BibTeX RIS

APA Style

Tamara Travinskaya, Yuri Savelyev. (2017). Aqueous Polyurethane Dispersions - Sodium Alginate Based Blends and Hydrogels. American Journal of Heterocyclic Chemistry, 2(1), 20-25. https://doi.org/10.11648/j.ajhc.20160201.14

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ACS Style

Tamara Travinskaya; Yuri Savelyev. Aqueous Polyurethane Dispersions - Sodium Alginate Based Blends and Hydrogels. Am. J. Heterocycl. Chem. 2017, 2(1), 20-25. doi: 10.11648/j.ajhc.20160201.14

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AMA Style

Tamara Travinskaya, Yuri Savelyev. Aqueous Polyurethane Dispersions - Sodium Alginate Based Blends and Hydrogels. Am J Heterocycl Chem. 2017;2(1):20-25. doi: 10.11648/j.ajhc.20160201.14

Copy | Download

@article{10.11648/j.ajhc.20160201.14,
  author = {Tamara Travinskaya and Yuri Savelyev},
  title = {Aqueous Polyurethane Dispersions - Sodium Alginate Based Blends and Hydrogels},
  journal = {American Journal of Heterocyclic Chemistry},
  volume = {2},
  number = {1},
  pages = {20-25},
  doi = {10.11648/j.ajhc.20160201.14},
  url = {https://doi.org/10.11648/j.ajhc.20160201.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajhc.20160201.14},
  abstract = {The film forming binary polyurethane-alginate blends and based hydrogels, containing different alginate content, were prepared by blending of anionic polyurethane dispersions (APD) and aqueous sodium alginate (SA) solution. Binary blends of APD and SA were cast in film form from mixed aqueous polymer solutions by solvent evaporation. Post-treatment of as-cast films with CaCl2 leaded tot he hydrogels formation. The thermal stability, thermal transition, water-swelling, mechanical properties and gas permeance for O2 and CO2 of two kinds of films were examined according to alginate content. Irrespective of composition, blend samples gave a single glass transition temperature (Tg), indicating the formation of thermodynamically miscible phase. The shift of Tg in hydrogels to the higher temperatures indicated the possible simultaneous occurrence of a chelate complexation of SA with Ca+2 cations, cross-links between polyurethane chains, having carboxylate anions, with Ca2+ cations, and interactions between SA and anionic polyurethane, resulting in the formation of an semi-interpenetrating network structure. The relationships between the films structure, their physicochemical properties and alginate content have been discussed.},
 year = {2017}
}

Copy | Download

TY  - JOUR
T1  - Aqueous Polyurethane Dispersions - Sodium Alginate Based Blends and Hydrogels
AU  - Tamara Travinskaya
AU  - Yuri Savelyev
Y1  - 2017/01/05
PY  - 2017
N1  - https://doi.org/10.11648/j.ajhc.20160201.14
DO  - 10.11648/j.ajhc.20160201.14
T2  - American Journal of Heterocyclic Chemistry
JF  - American Journal of Heterocyclic Chemistry
JO  - American Journal of Heterocyclic Chemistry
SP  - 20
EP  - 25
PB  - Science Publishing Group
SN  - 2575-5722
UR  - https://doi.org/10.11648/j.ajhc.20160201.14
AB  - The film forming binary polyurethane-alginate blends and based hydrogels, containing different alginate content, were prepared by blending of anionic polyurethane dispersions (APD) and aqueous sodium alginate (SA) solution. Binary blends of APD and SA were cast in film form from mixed aqueous polymer solutions by solvent evaporation. Post-treatment of as-cast films with CaCl2 leaded tot he hydrogels formation. The thermal stability, thermal transition, water-swelling, mechanical properties and gas permeance for O2 and CO2 of two kinds of films were examined according to alginate content. Irrespective of composition, blend samples gave a single glass transition temperature (Tg), indicating the formation of thermodynamically miscible phase. The shift of Tg in hydrogels to the higher temperatures indicated the possible simultaneous occurrence of a chelate complexation of SA with Ca+2 cations, cross-links between polyurethane chains, having carboxylate anions, with Ca2+ cations, and interactions between SA and anionic polyurethane, resulting in the formation of an semi-interpenetrating network structure. The relationships between the films structure, their physicochemical properties and alginate content have been discussed.
VL  - 2
IS  - 1
ER  -

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