Poly(2-hydroxyethyl methacrylate) (PHEMA) grafted polyethylene/polypropylene (PE/PP) nonwoven fabric by gamma-initiation: Synthesis, characterization and benefits of RAFT mediation

KODAMA Y., BARSBAY M., GUVEN O.

RADIATION PHYSICS AND CHEMISTRY, vol.105, pp.31-38, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 105
  • Publication Date: 2014
  • Doi Number: 10.1016/j.radphyschem.2014.05.023
  • Journal Name: RADIATION PHYSICS AND CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.31-38
  • Keywords: RAFT mediated grafting, gamma-initiation, Front mechanism, 2-hydroxyethyl methacrylate (HEMA), Polyethylene/polypropylene (PE/PP), FRAGMENTATION CHAIN-TRANSFER, LIVING RADICAL POLYMERIZATION, SURFACE MODIFICATION, ACRYLIC-ACID, RADIATION, IRRADIATION, COPOLYMERIZATION, MEMBRANES, CELLULOSE, POLYMERS
  • Hacettepe University Affiliated: Yes

Abstract

Polyethylene/polypropylene (PE/PP) nonwoven fabrics were functionalized by gamma-initiated RAFT mediated grafting of 2-hydroxyethyl methacrylate (HEMA), and the characterization of the grafted samples was carried out using various techniques. FTIR and XPS analysis showed an increase in the oxygenated content till a certain degree of grafting. The results implied a grafting process following the concept of 'front mechanism'. The initial grafting occurred on the topmost surface layer, and then moved further into the bulk of the polymer matrix. Reversible addition-fragmentation chain transfer (RAFT) mediated grafting yielded a better controlled grafting when compared to those obtained in conventional grafting. (C) 2014 Elsevier Ltd. All rights reserved.