Miscibility enhancement on the immiscible binary blend of poly(vinyl acetate) and poly(vinyl pyrrolidone) with bisphenol A

Polymer ◽  
2002 ◽  
Vol 43 (13) ◽  
pp. 3653-3660 ◽  
Author(s):  
Shiao-Wei Kuo ◽  
Shih-Chi Chan ◽  
Feng-Chih Chang
Keyword(s):  
Bisphenol A ◽  
Vinyl Acetate ◽  
Vinyl Pyrrolidone ◽  
Binary Blend ◽  
Poly Vinyl Pyrrolidone

Variable morphologies of poly(vinyl acetate)–montmorillonite nanocomposites obtained by emulsion polymerization in the presence of poly(vinyl pyrrolidone)

e-Polymers ◽  
2006 ◽  
Vol 6 (1) ◽  
Author(s):  
Mihai-Cosmin Corobea ◽  
Violeta Uricanu ◽  
Dan Donescu ◽  
Szabolcs Deladi ◽  
Constantin Radovici ◽  
...  
Keyword(s):  
Emulsion Polymerization ◽  
Vinyl Acetate ◽  
Polymer Matrix ◽  
The Other ◽  
Vinyl Pyrrolidone ◽  
Clay Concentration ◽  
End Products ◽  
Poly Vinyl Pyrrolidone ◽  
Montmorillonite Nanocomposites

AbstractNanocomposites containing poly(vinyl acetate) and montmorillonite (MMT) were prepared using a one-batch emulsion polymerization recipe, assisted by poly (vinylpyrrolidone). The relative clay concentration with respect to the other reaction partners influences drastically the morphological units in the end-products. For low [MMT], well-defined, spherical PVAc particles are formed. At the other extreme, for high [MMT], production of polymeric, water-swollen aggregates is favored. Depending on the MMT/PVP ratio, the clay will be dispersed in the final polymer matrix in variable forms, from individual platelets to agglomerates of reformed tactoids.

Modification of Bisphenol A Dicyanate Ester Resin with Poly Vinyl Pyrrolidone (K30)

2011 ◽  
Vol 217-218 ◽  
pp. 1497-1503
Author(s):  
Jie Liang Wang ◽  
Ai Juan Gu ◽  
Guo Zheng Liang
Keyword(s):  
Bisphenol A ◽  
Gelation Time ◽  
Vinyl Pyrrolidone ◽  
Infrared Spectrometry ◽  
Scanning Calorimetry ◽  
Sem Images ◽  
Mass Fractions ◽  
Low Mass ◽  
Poly Vinyl Pyrrolidone ◽  
Pvp K30

Poly vinyl pyrrolidone (PVP(K30)) / Bisphenol A Dicyanate ester (BADCy) blends were fabricated to increase the toughness of BADCy by blending processing in this paper. Curing parameters were determined by gelation time curves and differential scanning calorimetry (DSC) of the systems. Fourier transform infrared spectrometry (FTIR) and DSC data were employed to show the curing behavior and kinetics of the systems. Mechanical properties of the cured resin had been improved rapidly with the increasing of PVP(K30) at low mass fraction, but would decrease when mass fractions of PVP(K30) were higher than 15%. Scanning electron micrograph (SEM) was applied to show the microstructures of the cured matrixes. Based on the thermogravimetric analysis (TGA) curves, water absorption curves, SEM images and dielectric properties of the blends, it can be concluded that the addition of PVP(K30) can improve the toughness of BADCy greatly with little loss of other properties.

Sign in / Sign up

Export Citation Format

Share Document