โ Scribed by M. Safari Ardi; D. H. McQueen
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
A series of technical composite suspension polymerized poly vinyl chloride products with additions of ethylene-vinyl acetate copolymer (Levapren 450M, 45 wt % VAcl have been investigated with NMR. Partial compatibility is found in these samples, and the phase conditions have been shown to be very mu
A series of polymer blends of commercial poly(viny1 chloride) (suspension-polymerized powder) and an ethylene-vinyl acetate copolymer (EVA with 45 w t % VA) containing 2-10 wt % EVA were prepared by mixing at room temperature (0) and by milling at 160ยฐC for 15 min (I) and then heat treated at 170ยฐC
Further investigations of the system PVC-EVA, with wide line NMR, have shown that the phase relations differ for graft-polymerized samples and non-grafted samples prepared by milling the polymer components together. The phase relations of the grafted products are not appreciably changed by different