Roy Bernstein1, Donald R. Paul2, J. W. Barlow1
1University of Texas at Austin#TAB#
2Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712
Tóm tắt
AbstractBlends of poly(vinylidene fluoride) PVF2, with poly(vinyl acetate), PVAc; with poly(vinyl propionate), PVPr; and with poly(vinyl butyrate), PVBu, were prepared by solution blending. Solutions containing PVF2 with either PVPr or PVBu exhibited phase separation, and it was concluded that neither of these polymers are miscible with PVF2. Phase separation did not occur with solutions containing PVF2 and PVAc. Dried samples of this blend system were subjected to differential thermal analysis, dynamical mechanical testing, and visual observations of their melts. From these results, it was concluded that PVF2 and PVAc are miscible. The detailed results and the structural implications of these observations are discussed.
