Synthesis and Characterization of KonjacGlucomannan-Graft-Polyacrylamide via γ-Irradiation

The synthesis of konjac glucomannan-graft-polyacrylamide (KGM-g-PAM) was carried out at 25°C by γ-irradiation under a N(2) atmosphere. The effects of absorbed radiation dosage and monomer concentration on grafting yield and water absorbency were studied. The grafted copolymers were characterized usi...

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Autores principales: Xu, Zhenlin, Yang, Youhui, Jiang, Yueming, Sun, Yuanming, Shen, Yudong, Pang, Jie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2008
Materias:
Full Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6245445/
https://www.ncbi.nlm.nih.gov/pubmed/18463561
http://dx.doi.org/10.3390/molecules13030490
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author Xu, Zhenlin
Yang, Youhui
Jiang, Yueming
Sun, Yuanming
Shen, Yudong
Pang, Jie
author_facet Xu, Zhenlin
Yang, Youhui
Jiang, Yueming
Sun, Yuanming
Shen, Yudong
Pang, Jie
author_sort Xu, Zhenlin
collection PubMed
description The synthesis of konjac glucomannan-graft-polyacrylamide (KGM-g-PAM) was carried out at 25°C by γ-irradiation under a N(2) atmosphere. The effects of absorbed radiation dosage and monomer concentration on grafting yield and water absorbency were studied. The grafted copolymers were characterized using Fourier Transform Infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR), x-ray diffraction (XRD), thermogravimetric analysis (TGA) and gel permeation chromatography (GPC). The grafting yield was observed to increase with increasing absorbed dosage and monomer concentration. Compared with the original KGM, the grafted copolymers exhibited better thermal stability and water absorbency. The results suggest that γ-irradiation is convenient and efficient for inducing graft copolymerization of KGM and acrylamide (AM).
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spelling pubmed-62454452018-11-26 Synthesis and Characterization of KonjacGlucomannan-Graft-Polyacrylamide via γ-Irradiation Xu, Zhenlin Yang, Youhui Jiang, Yueming Sun, Yuanming Shen, Yudong Pang, Jie Molecules Full Paper The synthesis of konjac glucomannan-graft-polyacrylamide (KGM-g-PAM) was carried out at 25°C by γ-irradiation under a N(2) atmosphere. The effects of absorbed radiation dosage and monomer concentration on grafting yield and water absorbency were studied. The grafted copolymers were characterized using Fourier Transform Infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR), x-ray diffraction (XRD), thermogravimetric analysis (TGA) and gel permeation chromatography (GPC). The grafting yield was observed to increase with increasing absorbed dosage and monomer concentration. Compared with the original KGM, the grafted copolymers exhibited better thermal stability and water absorbency. The results suggest that γ-irradiation is convenient and efficient for inducing graft copolymerization of KGM and acrylamide (AM). MDPI 2008-03-01 /pmc/articles/PMC6245445/ /pubmed/18463561 http://dx.doi.org/10.3390/molecules13030490 Text en © 2008 by MDPI (http://www.mdpi.org). Reproduction is permitted for noncommercial purposes.
spellingShingle Full Paper
Xu, Zhenlin
Yang, Youhui
Jiang, Yueming
Sun, Yuanming
Shen, Yudong
Pang, Jie
Synthesis and Characterization of KonjacGlucomannan-Graft-Polyacrylamide via γ-Irradiation
title Synthesis and Characterization of KonjacGlucomannan-Graft-Polyacrylamide via γ-Irradiation
title_full Synthesis and Characterization of KonjacGlucomannan-Graft-Polyacrylamide via γ-Irradiation
title_fullStr Synthesis and Characterization of KonjacGlucomannan-Graft-Polyacrylamide via γ-Irradiation
title_full_unstemmed Synthesis and Characterization of KonjacGlucomannan-Graft-Polyacrylamide via γ-Irradiation
title_short Synthesis and Characterization of KonjacGlucomannan-Graft-Polyacrylamide via γ-Irradiation
title_sort synthesis and characterization of konjacglucomannan-graft-polyacrylamide via γ-irradiation
topic Full Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6245445/
https://www.ncbi.nlm.nih.gov/pubmed/18463561
http://dx.doi.org/10.3390/molecules13030490
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