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BibTeX
Plasma enhanced modification of xanthan and its use in chitosan/xanthan hydrogels
Polymer engineering and science, 2014-10, Vol.54 (10), p.2264-2271
Martínez-Gómez, A.J.
Cruz-Barba, L.E.
Sánchez-Díaz, J.C.
Becerra-Bracamontes, F.
Martínez-Ruvalcaba, A.
2014
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Martínez-Gómez, A.J.
Cruz-Barba, L.E.
Sánchez-Díaz, J.C.
Becerra-Bracamontes, F.
Martínez-Ruvalcaba, A.
Titel
Plasma enhanced modification of xanthan and its use in chitosan/xanthan hydrogels
Ist Teil von
Polymer engineering and science, 2014-10, Vol.54 (10), p.2264-2271
Ort / Verlag
Newtown: Blackwell Publishing Ltd
Erscheinungsjahr
2014
Quelle
Wiley Online Library All Journals
Beschreibungen/Notizen
This study reports the design and construction of a fluidized bed/non‐equilibrium atmospheric‐pressure‐plasma reactor. The mechanical design of the reactor was devised to modify chemically and physically the surface of different powders. The basis for developing the design and construction of the reaction system were the non‐equilibrium atmospheric‐pressure‐plasma phenomenon known as dielectric barrier discharge and the gas‐solid bubbling fluidization. The reactor was tested modifying xanthan powder that was used in the synthesis of chitosan/xanthan hydrogels, for which the swelling capacity was measured at different pH levels. The chemical modification of xanthan was carried out in a sequential process of plasma treatment with different exposure times and gas flow (from 0.5 to 5 min), followed by chemical vapor deposition of epichlorohydrin. The swelling experiments reveal that the hydrogels increase its swelling capacity in acidic mediums and when the hydrogel was formed with xanthan with 2 or 3 min of plasma treatment. POLYM. ENG. SCI., 54:2264–2271, 2014. © 2013 Society of Plastics Engineers
Sprache
Englisch
Identifikatoren
ISSN: 0032-3888
eISSN: 1548-2634
DOI: 10.1002/pen.23778
Titel-ID: cdi_proquest_miscellaneous_1642263257
Format
–
Schlagworte
Atmospheric pressure
,
Chemical properties
,
Chemical reactors
,
Chemical vapor deposition
,
Chitosan
,
Construction
,
Design and construction
,
Design engineering
,
Dielectric barrier discharge
,
Engineering design
,
Gas flow
,
High temperature plasmas
,
Hydrogels
,
Identification and classification
,
Methods
,
Plasma (Ionized gases)
,
Powders
,
Reactors
,
Swelling
,
Xanthan
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