Mechanical properties of poly(vinyl chloride) blends and corresponding graft copolymers

✍ Scribed by Wen-Fu Lee; Chung-Ching Lai

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 255 KB
• Volume: 67
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19980110)67:2<307::aid-app13>3.0.co;2-v

✦ Synopsis

The mechanical properties of the poly(vinyl chloride) (PVC) and poly(glycidyl methacrylate) [poly(GMA)] blend system and the PVC and poly(hydroxyethyl methacrylate) [poly(HEMA)] blend system and their crosslinked films were investigated. At the same time, the mechanical properties for the corresponding graft copolymers such as PVC-g-GMA, PVC-g-HEMA, and their crosslinked films were also investigated in this study. The results showed that the tensile strengths for PVC-poly(GMA) blend systems were higher than those for PVC-g-GMA graft copolymer, and the tensile strengths for PVC-g-HEMA were higher than those for PVC-poly(HEMA) blend systems. However, the mechanical properties for the PVC-poly(GMA) blend system were not affected by the crosslinking of the blend system, but those for PVC-poly(HEMA) and their graft copolymers decreased with an increase of the equivalent ratio ([NCO]/ [OH]) of the crosslinker. Finally, the surface hydrophilicity of the PVC-g-HEMA graft copolymer and PVC-poly(HEMA) blends were also assessed through measuring the contact angle.