𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Structure of ethylene sulphide crystallites in block copolymers

✍ Scribed by D.E. Eaves; A. Stokes

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
322 KB
Volume
11
Category
Article
ISSN
0014-3057

No coin nor oath required. For personal study only.

✦ Synopsis

Block copolymers, having the configuration ethylene sulphide-isoprene-styrene or ethylene sulphide-isoprene ethylene sulphide, have been characterized to define the structure of the ethylene sulphide moiety. It is concluded that ethylene sulphide-isoprene-styrene block copolymers exist in solution and in bulk (above the styrene softening point)as radial aggregates held together by polyethylene sulphide crystallites. During polymerization, these crystallites are formed with a linear extended chain morphology which is retained in bulk in ethylene sulphide-isoprene styrene copolymers: in the copolymers which require processing above the melting point of the ethylene sulphide crystallites, the linear morphology is destroyed during moulding.

πŸ“œ SIMILAR VOLUMES

The effect of molecular weight and cryst
The effect of molecular weight and crystallite structure on yielding in ethylene copolymers
✍ J. T. Graham; R. G. Alamo; L. Mandelkern πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 397 KB πŸ‘ 2 views

Nominal stress-strain curves of a series of random ethylene-hexene copolymers having narrow composition and most probable molecular weight distributions were investigated. A series of such molecular weight copolymers with a constant concentration of branches were crystallized under a variety of cond

The rs-structure of ethylene sulphide
The rs-structure of ethylene sulphide
✍ Kasuhiro Okiye; Chiaki Hirose; David G. Lister; John Sheridan πŸ“‚ Article πŸ“… 1974 πŸ› Elsevier Science 🌐 English βš– 202 KB
Syntheses and properties of ethylene sul
Syntheses and properties of ethylene sulphide-isobutylene sulphide copolymers and their unsaturated terpolymers
✍ A. Roggero; L. Zotteri; A. Proni; A. Gandini; A. Mazzei πŸ“‚ Article πŸ“… 1976 πŸ› Elsevier Science 🌐 English βš– 404 KB

The synthesis with anionic catalysts and the characterization of ES-IBS copolymer and ES-IBS-ATE terpolymer are reported (ES, IBS, ATE and PS = ethylene sulphide, isobutylene sulphide, 3-allyloxy-l,2-epithiopropane and propylene sulphide respectively). For ES-IBS copolymer with 35-55% ES, nearly amo

Structure of polystyrene-block-poly(ethy
Structure of polystyrene-block-poly(ethylene oxide) diblock copolymer micelles in water
✍ Amane Jada; Guy Hurtrez; Bernard Siffert; GΓ©rard Riess πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 776 KB

## Abstract Micellization in water of two homologous series of AB‐type diblock copolymers, composed of polystyrene (PS) as the A block and poly(ethylene oxide) (PEO) as the B block, were investigated by small‐angle X‐ray scattering (SAXS) and dynamic light scattering (DLS). The copolymers have mole