The composition of the high molecular weight tail in the branched polyethylene standard reference material SRM 1476 was studied in detail using size exclusion chromatography coupled with a refractive index, a viscosity, and a light scattering on-line detector. The light scattering determinations of
High molecular weight tail and long-chain branching in low-density polyethylenes
โ Scribed by F. Beer; G. Capaccio; L. J. Rose
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 221 KB
- Volume
- 80
- Category
- Article
- ISSN
- 0021-8995
- DOI
- 10.1002/app.1398
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๐ SIMILAR VOLUMES
## SYNOPSIS The mean length and the indices of long-chain branches (LCBs) of a high-pressure lowdensity polyethylene (HPLDPE) as a function of molecular weight have been determined for its molecular-weight-fractionated parts by the I3C-NMR analysis and the viscosity measurements. The mean LCB leng
An experimental study of extrudate swell has been carried out, involving five low-density polyethylene (LDPE) samples of approximately the same molecular size but of different frequencies of long-chain branching (LCB). The results show that the samples with higher frequencies of LCB exhibit a tenden
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