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Characterization and properties of biodegradable thermoplastic grafted starch films by different contents of methacrylic acid.
Int J Biol Macromol. 2019 Feb 15; 123:657-663.IJ

Abstract

Due to poor mechanical and thermal properties of native starch (NS) film; in the present work; NS was modified by graft copolymerization. Thermoplastic starch (TPS) grafted by methacrylic acid (MAA) with different percentage of grafting, i.e., 0%, 18.3%, 36.3%, 52.1% and 89.7% were prepared and tested. The result demonstrated that the intensity of IR peak of acrylic group increased with the increasing percentage of grafting. The higher graft copolymerization with MAA also significantly reduced degree of crystallinity. The strain at maximum load of TPS film grafted by MAA increased with the increasing percentage of grafting. However, water uptake of TPS film grafted by MAA reduced with high percentage of grafting (52.1% and 89.7%). In addition, different TPS films grafted by MAA were also examined for morphology, water vapor permeability, thermal property and biodegradable property by soil buried test.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Weerapoprasit C
Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang (KMITL), Bangkok 10520, Thailand.
Prachayawarakorn J
Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang (KMITL), Bangkok 10520, Thailand; Advanced Materials Research Unit, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang (KMITL), Bangkok 10520, Thailand. Electronic address: jutarat.si@kmitl.ac.th.

MeSH

Biodegradable PlasticsMethacrylatesStarchTemperatureTensile StrengthWater

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30445086

Citation

Weerapoprasit, Chayapa, and Jutarat Prachayawarakorn. "Characterization and Properties of Biodegradable Thermoplastic Grafted Starch Films By Different Contents of Methacrylic Acid." International Journal of Biological Macromolecules, vol. 123, 2019, pp. 657-663.
Weerapoprasit C, Prachayawarakorn J. Characterization and properties of biodegradable thermoplastic grafted starch films by different contents of methacrylic acid. Int J Biol Macromol. 2019;123:657-663.
Weerapoprasit, C., & Prachayawarakorn, J. (2019). Characterization and properties of biodegradable thermoplastic grafted starch films by different contents of methacrylic acid. International Journal of Biological Macromolecules, 123, 657-663. https://doi.org/10.1016/j.ijbiomac.2018.11.083
Weerapoprasit C, Prachayawarakorn J. Characterization and Properties of Biodegradable Thermoplastic Grafted Starch Films By Different Contents of Methacrylic Acid. Int J Biol Macromol. 2019 Feb 15;123:657-663. PubMed PMID: 30445086.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Characterization and properties of biodegradable thermoplastic grafted starch films by different contents of methacrylic acid. AU - Weerapoprasit,Chayapa, AU - Prachayawarakorn,Jutarat, Y1 - 2018/11/13/ PY - 2018/09/21/received PY - 2018/10/19/revised PY - 2018/11/12/accepted PY - 2018/11/18/pubmed PY - 2019/4/19/medline PY - 2018/11/17/entrez KW - Biopolymer KW - Grafting KW - Modified starch KW - Thermoplastic starch SP - 657 EP - 663 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 123 N2 - Due to poor mechanical and thermal properties of native starch (NS) film; in the present work; NS was modified by graft copolymerization. Thermoplastic starch (TPS) grafted by methacrylic acid (MAA) with different percentage of grafting, i.e., 0%, 18.3%, 36.3%, 52.1% and 89.7% were prepared and tested. The result demonstrated that the intensity of IR peak of acrylic group increased with the increasing percentage of grafting. The higher graft copolymerization with MAA also significantly reduced degree of crystallinity. The strain at maximum load of TPS film grafted by MAA increased with the increasing percentage of grafting. However, water uptake of TPS film grafted by MAA reduced with high percentage of grafting (52.1% and 89.7%). In addition, different TPS films grafted by MAA were also examined for morphology, water vapor permeability, thermal property and biodegradable property by soil buried test. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/30445086/Characterization_and_properties_of_biodegradable_thermoplastic_grafted_starch_films_by_different_contents_of_methacrylic_acid_ DB - PRIME DP - Unbound Medicine ER -