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- Title
Mathematical Correlation of Polydispersity using Gel Permeation Chromatography and Rubber Process Analyzer for Raw Rubbers.
- Authors
Agrawal, S. L.; Chakraborty, S.; Mandot, S.; Dasgupta, S.; Bandyopadhyay, S.; Mukhopadhyay, R.; Deuri, A. S.
- Abstract
In this study, an attempt has been made to correlate the polydispersity value measured through gel permeation chromatography (GPC) and that obtained through rubber process analyzer (RPA 2000). The tan δ at higher and lower frequencies is measured using RPA 2000. The inverse of tan δ difference at higher and lower frequencies obtained through RPA 2000 is correlated with the polydispersity data measured from GPC for different grades of raw rubbers like ethylene propylene diene rubber (EPDM) and butyl rubber (IIR). Polydispersity as predicted by RPA 2000 shows excellent correlation with that measured through GPC. The coefficient of correlation is found to be 0.98 for EPDM and 0.99 for IIR. The predicted polydispersity value obtained through RPA 2000 is within ±8% from that measured through GPC.
- Subjects
PARTICLE size determination; GEL permeation chromatography; RUBBER; ETHYLENE; PROPENE; BUTYL rubber
- Publication
Journal of Elastomers & Plastics, 2006, Vol 38, Issue 1, p31
- ISSN
0095-2443
- Publication type
Academic Journal
- DOI
10.1177/0095244306054684