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Title:UV polymerization of poly (N-isopropylacrylamide) hydrogel
Authors:ID Kurečič, Manja (Author)
ID Sfiligoj-Smole, Majda (Author)
ID Stana-Kleinschek, Karin (Author)
ID Inštitut za kovinske materiale in tehnologije (Copyright holder)
Files:.pdf Materiali_in_tehnologije_2012_Kurecic,_Sfiligoj-smole,_Stana-kleinschek_Uv_Polymerization_of_Poly_(_N-Isopropylacrylamide_)_Hydrogel.pdf (599,31 KB)
MD5: 81BDABD61C458889AAC64FB3C58CA4F0
PID: 20.500.12556/dkum/33f6f7ac-cf32-4412-92a8-4bc3b1139f92
 
URL http://mit.imt.si/Revija/izvodi/mit121/kurecic.htm
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:This contribution is focused on the determination of polymerization and crosslinking mechanism of poly (N-isopropyl- acralymide) hydrogel and its swelling properties. Hydrogels were synthesized by environmental friendly UV polymerization method, from monomer N-isopropylacrylamide (NIPAM) and crosslinker N,N´-methylenebisacrylamide (BIS) of different concentrations. UV polymerization was performed in an UV chamber using UVA light with the wave length 350 nm. Surface morphology and pore structure analysis was carried out using SEM microscopy. The polymerization and crosslinking mechanism was determined by Fourier Transform Infrared spectroscopy (FT-IR). It was confirmed that crosslinker concentration influences the hydrogel structure and swelling properties. By increasing the crosllinker concentration the hydrogel structure changes from homogen to heterogen and the equilibrium degree of swelling decreases.
Keywords:poly (N-isopropylacrylamide) hydrogel, UV polymerization, FTIR, polymerization mechanism, swelling properties, SEM
Publication status:Published
Publication version:Version of Record
Year of publishing:2012
Number of pages:str. 87-91
Numbering:Letn. 46, št. 1
PID:20.500.12556/DKUM-27249 New window
ISSN:1580-2949
UDC:678.7
ISSN on article:1580-2949
COBISS.SI-ID:15776022 New window
NUK URN:URN:SI:UM:DK:7YMF0IJH
Publication date in DKUM:01.06.2012
Views:2072
Downloads:109
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
KUREČIČ, Manja, SFILIGOJ-SMOLE, Majda and STANA-KLEINSCHEK, Karin, 2012, UV polymerization of poly (N-isopropylacrylamide) hydrogel. Materiali in tehnologije [online]. 2012. Vol. 46, no. 1, p. 87–91. [Accessed 21 January 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=27249
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Record is a part of a journal

Title:Materiali in tehnologije
Shortened title:Mater. tehnol.
Publisher:Inštitut za kovinske materiale in tehnologije
ISSN:1580-2949
COBISS.SI-ID:106193664 New window

Secondary language

Language:Slovenian
Title:UV polimerizacija poli(N-isopropilakrilamidnega) hidrogela
Abstract:V prispevku je predstavljen mehanizem polimerizacije in zamreženja poli(N-isopropilakrilamidnega) hidrogela in njegova sposobnost nabrekanja. Hidrogele smo sintetizirali z okolju prijazno metodo UV polimerizacije iz monomera N-isopropilakrilamida (NIPAM) in zamreževalca N,N´-metilenebisakrilamida (BIS) različnih koncentracij. UV polimerizacija je potekala v UV komori z UVA svetlobo valovne dolžine 350 nm. Površinsko morfologijo in strukturo por smo spremljali s SEM mikroskopijo. Mehanizem polimerizacije in zamreženja smo določili na podlagi posnetih spektrov s Fourier Transform Infrardečo spektroskopijo (FT-IR). Ugotovili smo, da koncentracija zamreževalca vpliva na strukturo hidrogela in njegovo sposobnost nabrekanja. Z večanjem koncentracije zamreževalca pride do spremembe v strukturi hidrogela iz homogene v heterogeno, kar vpliva na zmanjšanje sposobnosti nabrekanja.
Keywords:poli(N-isopropilakrilamide) hidrogel, hidrogel, DTIR, mehanizem polimerizacije, nabrekanje, SEM


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