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Rheology of Star-Branched Polyisobutylene

✍ Scribed by Santangelo, P. G.; Roland, C. M.; Puskas, J. E.


Book ID
126822559
Publisher
American Chemical Society
Year
1999
Tongue
English
Weight
81 KB
Volume
32
Category
Article
ISSN
0024-9297

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πŸ“œ SIMILAR VOLUMES


Effect of reaction conditions on synthes
✍ Robson F. Storey; Kelly A. Shoemake πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 277 KB πŸ‘ 2 views

A series of multiarm star-branched polyisobutylenes was synthesized from narrow polydispersity arms with molecular weights ranging from 12,000 to 60,000 g/mol, via living carbocationic polymerization using the cumyl chloride/TiCl 4 /pyridine initiating system and divinylbenzene (DVB) as core-forming

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A series of star-branched polyisobutylenes with varying arm molecular weights was synthesized using the 2-chloro-2,4,4-trimethylpentane/TiCl 4 /pyridine initiating system and divinylbenzene (DVB) as a core-forming comonomer (linking agent). The resulting star-branched polymers were characterized wit

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## Abstract Summary: Fourier‐Transform rheology (FT rheology) was used to study the influence of the degree of branching on the nonlinear relaxation behaviour of polystyrene solutions. The results were compared with those obtained under oscillatory shear and step‐shear conditions. The different top