๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Surface enrichment in blends of miscible polymers

โœ Scribed by Bernhard Guckenbiehl; Manfred Stamm; Tasso Springer

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
480 KB
Volume
86
Category
Article
ISSN
0927-7757

No coin nor oath required. For personal study only.

โœฆ Synopsis

The surface in binary blends of the partially miscible polymers deuterated polystyrene and poly(styreneco-4.bromostyrene) with 6% brominated monomer units and various bulk compositions was studied by neutron reflection. Both the time-dependent and equilibrium properties of the blend are discussed. It is found that density profiles predicted by mean field theory are suitable to fit the experimental data. A depletion layer is established in the near surface region before equilibrium is reached. Properties like the FloryyHuggins interaction parameter x and the diffusion coefficient D are calculated and compared with recent experimental results.

๐Ÿ“œ SIMILAR VOLUMES

Miscibility of phenoxy polymer/polyacryl
Miscibility of phenoxy polymer/polyacrylate blends
โœ Chengpei Wu; Yiliang Wu; Ruiyun Zhang ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 331 KB

## Abstract The miscibility of blends of phenoxy polymer 1 from bisphenol A and epichlorohydrin and polyacrylates is studied using differential scanning calorimetry (DSC) and Fouriertransform infrared (FTIR) spectroscopy. The DSC curves show that poly(alkyl acrylate)s are immiscible with phenoxy. I

Miscible blends of conductive polyanilin
Miscible blends of conductive polyaniline with tertiary amide polymers
โœ S. H. Goh; H. S. O. Chan; C. H. Ong ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 282 KB ๐Ÿ‘ 2 views

Polyaniline (PANI) was doped with p-phenolsulfonic acid (PSA) or 5-sulfosalicylic acid (SSA). The PANI salts were blended with poly(N-vinyl-2-pyrrolidone), poly( N-methyl-N-vinylacetamide), poly( N,N-dimethylacrylamide), or poly(2-methyl-2-oxazoline) by solution casting from dimethyl sulfoxide. Blen

Phase behavior of blends of polycarbonat
Phase behavior of blends of polycarbonate with partially miscible polymers
โœ Woo Nyon Kim; Charles M. Burns ๐Ÿ“‚ Article ๐Ÿ“… 1990 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 863 KB

Phase behavior of blends of bisphenol A polycarbonate ( P C ) with polystyrene ( P S ) , poly (styrene-co-acrylonitrile) (SAN) , poly (acrylonitrile-butadiene-styrene) ( ABS) , poly ( methyl methacrylate) (PMMA), poly (ethylene terephthalate) ( P E T ) , and poly (butylene terephthalate) ( P B T ) h