Biodegradation of copolymer obtained by grafting reaction between methacrylic acid and starch
Само за регистроване кориснике
2018
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Biodegradation of methacrylic acid and starch graft copolymers was investigated for the first time in this manuscript. Synthesized copolymer was characterized by 1H nuclear magnetic resonance spectroscopy (NMR), Fourier transformed infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and elemental analysis. Copolymers with different percentage of grafting, G (%), were buried in three different types of soil. Biodegradation was monitored by measuring mass loss of the samples and using FTIR and SEM. The highest weight loss was in soil for the orchid growth (all samples had biodegradation higher than 89%), followed by soil for the cactus growth (mass loss higher than 70%) and soil rich in humus where some of the samples had biodegradation rate near or less than 50%. The correlation between G (%) and percent of weight loss after biodegradation was not significant in any types of soil. FTIR and SEM showed that after biodegradation, samples still contained both building component...s. Respiration test showed higher O2 consumption and CO2 production comparing to polystyrene which confirmed biodegradability of the accessible starch in copolymer. Based on the obtained results, degradation mechanism is proposed. First step is biodegradation of easily accessible starch followed by dissolution of the poly(methacrylic acid). This mechanism confirmed that biodegradation depends not only on the percentage of grafting, but also on molecular packaging, chains arrangement and the number and types of microorganisms present in the specific types of soils.
Кључне речи:
Biodegradation / Graft copolymers / Methacrylic acid / Soil / StarchИзвор:
Polymer Bulletin, 2018, 76, 2197-2213Издавач:
- Springer Verlag
Финансирање / пројекти:
- Симултана биоремедијација и соилификација деградираних простора, за очување природних ресурса биолошки активних супстанци и развој и производњу биоматеријала и дијететских производа (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43004)
- Проучавање физичкохемијских и биохемијских процеса у животној средини који утичу на загађење и истраживање могућности за минимизирање последица (RS-MESTD-Basic Research (BR or ON)-172001)
DOI: 10.1007/s00289-018-2484-x
ISSN: 0170-0839
WoS: 000463611800004
Scopus: 2-s2.0-85052309827
Институција/група
IHTMTY - JOUR AU - Nikolić, V. AU - Lončarević, Branka AU - Popović, Aleksandar R. PY - 2018 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/2411 AB - Biodegradation of methacrylic acid and starch graft copolymers was investigated for the first time in this manuscript. Synthesized copolymer was characterized by 1H nuclear magnetic resonance spectroscopy (NMR), Fourier transformed infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and elemental analysis. Copolymers with different percentage of grafting, G (%), were buried in three different types of soil. Biodegradation was monitored by measuring mass loss of the samples and using FTIR and SEM. The highest weight loss was in soil for the orchid growth (all samples had biodegradation higher than 89%), followed by soil for the cactus growth (mass loss higher than 70%) and soil rich in humus where some of the samples had biodegradation rate near or less than 50%. The correlation between G (%) and percent of weight loss after biodegradation was not significant in any types of soil. FTIR and SEM showed that after biodegradation, samples still contained both building components. Respiration test showed higher O2 consumption and CO2 production comparing to polystyrene which confirmed biodegradability of the accessible starch in copolymer. Based on the obtained results, degradation mechanism is proposed. First step is biodegradation of easily accessible starch followed by dissolution of the poly(methacrylic acid). This mechanism confirmed that biodegradation depends not only on the percentage of grafting, but also on molecular packaging, chains arrangement and the number and types of microorganisms present in the specific types of soils. PB - Springer Verlag T2 - Polymer Bulletin T1 - Biodegradation of copolymer obtained by grafting reaction between methacrylic acid and starch VL - 76 SP - 2197 EP - 2213 DO - 10.1007/s00289-018-2484-x ER -
@article{ author = "Nikolić, V. and Lončarević, Branka and Popović, Aleksandar R.", year = "2018", abstract = "Biodegradation of methacrylic acid and starch graft copolymers was investigated for the first time in this manuscript. Synthesized copolymer was characterized by 1H nuclear magnetic resonance spectroscopy (NMR), Fourier transformed infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and elemental analysis. Copolymers with different percentage of grafting, G (%), were buried in three different types of soil. Biodegradation was monitored by measuring mass loss of the samples and using FTIR and SEM. The highest weight loss was in soil for the orchid growth (all samples had biodegradation higher than 89%), followed by soil for the cactus growth (mass loss higher than 70%) and soil rich in humus where some of the samples had biodegradation rate near or less than 50%. The correlation between G (%) and percent of weight loss after biodegradation was not significant in any types of soil. FTIR and SEM showed that after biodegradation, samples still contained both building components. Respiration test showed higher O2 consumption and CO2 production comparing to polystyrene which confirmed biodegradability of the accessible starch in copolymer. Based on the obtained results, degradation mechanism is proposed. First step is biodegradation of easily accessible starch followed by dissolution of the poly(methacrylic acid). This mechanism confirmed that biodegradation depends not only on the percentage of grafting, but also on molecular packaging, chains arrangement and the number and types of microorganisms present in the specific types of soils.", publisher = "Springer Verlag", journal = "Polymer Bulletin", title = "Biodegradation of copolymer obtained by grafting reaction between methacrylic acid and starch", volume = "76", pages = "2197-2213", doi = "10.1007/s00289-018-2484-x" }
Nikolić, V., Lončarević, B.,& Popović, A. R.. (2018). Biodegradation of copolymer obtained by grafting reaction between methacrylic acid and starch. in Polymer Bulletin Springer Verlag., 76, 2197-2213. https://doi.org/10.1007/s00289-018-2484-x
Nikolić V, Lončarević B, Popović AR. Biodegradation of copolymer obtained by grafting reaction between methacrylic acid and starch. in Polymer Bulletin. 2018;76:2197-2213. doi:10.1007/s00289-018-2484-x .
Nikolić, V., Lončarević, Branka, Popović, Aleksandar R., "Biodegradation of copolymer obtained by grafting reaction between methacrylic acid and starch" in Polymer Bulletin, 76 (2018):2197-2213, https://doi.org/10.1007/s00289-018-2484-x . .