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Modification of Pea...
Modification of Pea Starch and Dextrin Polymers with Isocyanate Functional Groups
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- Hosseinpourpia, Reza, 1983- (författare)
- Linnéuniversitetet,Institutionen för skog och träteknik (SOT),GoFP
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- Echart, Arantzazu Santamaria (författare)
- University of the Basque Country UPV/EHU, Spain
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- Adamopoulos, Stergios (författare)
- Linnéuniversitetet,Institutionen för skog och träteknik (SOT),GoFP
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- Gabilondo, Nagore (författare)
- University of the Basque Country UPV/EHU, Spain
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- Eceiza, Arantxa (författare)
- University of the Basque Country UPV/EHU, Spain
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(creator_code:org_t)
- 2018-08-23
- 2018
- Engelska.
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Ingår i: Polymers. - : MDPI. - 2073-4360. ; 10:9
- Relaterad länk:
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https://doi.org/10.3...
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https://www.mdpi.com...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Pea starch and dextrin polymers were modified through the unequal reactivity of isocyanate groups in isophorone diisocyanate (IPDI) monomer. The presence of both urethane and isocyanate functionalities in starch and dextrin after modification were confirmed by Fourier transform infrared spectroscopy (FTIR) and 13C nuclear magnetic resonance (13C NMR). The degree of substitution (DS) was calculated using elemental analysis data and showed higher DS values in modified dextrin than modified starch. The onsets of thermal degradation and temperatures at maximum mass losses were improved after modification of both starch and dextrin polymers compared to unmodified ones. Glass transition temperatures (Tg) of modified starch and dextrin were lower than unmodified control ones, and this was more pronounced in modified dextrin at a high molar ratio. Dynamic water vapor sorption of starch and dextrin polymers indicated a slight reduction in moisture sorption of modified starch, but considerably lower moisture sorption in modified dextrin as compared to that of unmodified ones.
Ämnesord
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Livsmedelsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Food Science (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Trävetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Wood Science (hsv//eng)
Nyckelord
- Livsmedelsvetenskap
- Food Science
- Organisk kemi
- Organic Chemistry
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Polymers
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