๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Effect of polymer architecture on the miscibility of polymer/clay mixtures

โœ Scribed by Singh, Chandralekha; Balazs, Anna C

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
62 KB
Volume
49
Category
Article
ISSN
0959-8103

No coin nor oath required. For personal study only.

โœฆ Synopsis

Using self-consistent ยฎeld calculations, we investigate the interactions between two closelyspaced surfaces and the surrounding polymer melt. Short surfactants are terminally anchored to each of the surfaces. The coated substrates model organically-modiยฎed clay crystallites (sheets). Holding the polymer length ยฎxed, we systematically vary the architecture of the chains, from linear to tenarmed stars. We then calculate the free energy of the system as the surfaces are prised apart in the different polymer melts. Through these calculations, we isolate conditions that drive these chains to penetrate the gap between the surfaces. The studies provide guidelines for tailoring the miscibility and morphology of the mixture and thus, fabricating thermodynamically stable polymer/clay composites.

๐Ÿ“œ SIMILAR VOLUMES

Effect of polymer architecture on self-d
Effect of polymer architecture on self-diffusion of LC polymers
โœ S. R. Clingman; G. Mao; C. K. Ober; R. H. Colby; M. Brehmer; R. Zentel; M. Bigno ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 218 KB ๐Ÿ‘ 1 views

Two LC side-group poly(methacrylates) were synthesized, and their melt dynamics were compared with each other and a third, main-chain side-group combined LC polymer. A new route was developed for the synthesis of the poly(methacrylate) polymers which readily converts relatively inexpensive perdeuter

Effect of polymer architecture on the ef
Effect of polymer architecture on the efficiency of acyl transfer reactions
โœ P. N. Sophiamma; K. Sreekumar ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 468 KB ๐Ÿ‘ 1 views

A series of spacer-modified polystyrene-supported hydroxamic esters and hydroxamic dithiocarbonic anhydrides were prepared starting from divinyl benzene and ethyleneglycol dimethacrylate crosslinked polystyrene resins through multistage polymer-analogous reactions. Acyl transfer reactions using thes

Effect of deuterium substitution on the
Effect of deuterium substitution on the surface interactions in binary polymer mixtures
โœ Andrzej Budkowski; Jakub Rysz; Frank Scheffold; Jacob Klein; Lewis J. Fetters ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 210 KB ๐Ÿ‘ 1 views

We have examined the effect of deuterium labeling on surface interactions in mixtures of random olefinic copolymers Based on surface segregation data we have determined a surface energy difference s between pure blend constituents. In each binary mixture components have different fractions x 1 , x