DEVELOPMENT OF TRANSPARENT PLASTIC MOISTURE BARRIERS BY RADIATION-INDUCED GRAFT POLYMERIZATION.
Abstract
Grafting of various monomers to polyethylene for the purpose of improving moisture barrier properties of the polymer has been studied. Monomers employed were, primarily, vinylidene chloride, chlorotrifluoroethylene and bromotrifluoroethylene. Some co-grafting with vinylidene chloride and other monomers was also performed. Grafting was primarily initiated by gamma irradiation; some studies with ultraviolet and chemical initiation were undertaken. The moisture barrier properties were improved by ca. 50% with a high vinylidene chloride graft, with a low vinylidene chloride graft prepared in the presence of chain regulator, and with a vinylidene chloride copolymer graft (all prepared by gamma irradiation). Grafting of chlorotrifluoroethylene could be performed, but the WVTR decreased with increased grafting levels. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 05, 1963
- Accession Number
- AD0430649