• 文献标题:   E-beam radiation synthesis of xanthan-gum/carboxymethylcellulose superabsorbent hydrogels with incorporated graphene oxide
  • 文献类型:   Article
  • 作  者:   CALINA I, DEMETER M, VANCEA C, SCARISOREANU A, MELTZER V
  • 作者关键词:   hydrogel, xanthan gum, graphene oxide, ebeam irradiation, crosslinking, swelling
  • 出版物名称:   JOURNAL OF MACROMOLECULAR SCIENCE PART APURE APPLIED CHEMISTRY
  • ISSN:   1060-1325 EI 1520-5738
  • 通讯作者地址:   Univ Bucuresti
  • 被引频次:   6
  • DOI:   10.1080/10601325.2018.1424552
  • 出版年:   2018

▎ 摘  要

In this study the electron beam (e-beam) radiation synthesis in paste-like condition and characterization of the network structure of acrylic acid (AA) sodium salt/xanthan gum (XG)/carboxymethylcellulose (CMC) superabsorbent hydrogels incorporating graphene oxide (GO) was investigated. The effects of the AA concentration on gel fraction, sol-gel analysis, swelling degree and network parameters, as well as the relationship between these parameters and radiation dose was also established.Gel fraction exceeds 90%, and the p(0)/q(0) ratio shows a moderate degradation process. The swelling kinetic data were used to determine, first the swelling degree, second the diffusion characteristics, and third the average molecular weight between crosslinks (Mc), as well as. The diffusion data revealed a Fickian mechanism transport, for each hydrogel compositions. The network parameters (Mc and ) increased with absorbed dose, while cross-linking density and the radiation-chemical yields were decreased.