Long chain branching in low density polyethylene: 2. Rheological behaviour of the polymers
โ Scribed by Daniele Romanini; Aurelio Savadori; Giuseppe Gianotti
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 783 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0032-3861
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๐ SIMILAR VOLUMES
13C-NMR spectroscopy and size exclusion chromatography have been used to determine the mean length of long branches in a number of high pressure process low density polyethylenes (LDPEs). 13C-NMR analyses count all branches longer than C5 as "long." The polyethylenes studied all had 2-3 long branche
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