Please use this identifier to cite or link to this item:
https://doi.org/10.1002/app.12051
DC Field | Value | |
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dc.title | Investigation of kinetics of 4-methylpentene-1 polymerization using Ziegler-Natta-type catalysts | |
dc.contributor.author | Balaji, R. | |
dc.contributor.author | Kothandaraman, H. | |
dc.contributor.author | Rajarathnam, D. | |
dc.date.accessioned | 2014-10-09T09:55:11Z | |
dc.date.available | 2014-10-09T09:55:11Z | |
dc.date.issued | 2003-06-06 | |
dc.identifier.citation | Balaji, R., Kothandaraman, H., Rajarathnam, D. (2003-06-06). Investigation of kinetics of 4-methylpentene-1 polymerization using Ziegler-Natta-type catalysts. Journal of Applied Polymer Science 88 (10) : 2468-2477. ScholarBank@NUS Repository. https://doi.org/10.1002/app.12051 | |
dc.identifier.issn | 00218995 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/92067 | |
dc.description.abstract | The kinetics of 4-methylpentene-l (4MP1) polymerization by use of Ziegler-Natta-type catalyst systems, M(acac)3-AlEt3 (M = Cr, Mn, Fe, and Co), are investigated in benzene medium at 40°C. The effect of various parameters such as Al/M ratio, reaction time, aging time, temperature, catalyst, and monomer concentrations on the rate of polymerization and yield are examined. The rate of polymerization increased linearly with increasing monomer concentration with first-order dependence, whereas the rate of polymerization with respect to catalyst concentration is found to be 0.5. For all cases, the polymer yield is maximum at an Al/M ratio of 2. The activation energies obtained from linear Arrhenius plots are in the range of 25.27-33.51 kJ mol-1. It is found that the aging time to give maximum percentage yield of the polymer varies with the catalyst systems. Based on the experimental results, a plausible mechanism is proposed that envisages a free-radical mechanism. Characterization of the resulting polymer product, for all the cases, through FTIR, 1H-NMR, and 13C-NMR studies, showed isomerized polymeric structures with 1,4-structure as dominant. © 2003 Wiley Periodicals, Inc. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1002/app.12051 | |
dc.source | Scopus | |
dc.subject | Catalysts | |
dc.subject | Isomer/isomerization | |
dc.subject | Kinetics | |
dc.subject | Polymerization | |
dc.subject | Ziegler-Natta | |
dc.type | Article | |
dc.contributor.department | CHEMICAL & ENVIRONMENTAL ENGINEERING | |
dc.description.doi | 10.1002/app.12051 | |
dc.description.sourcetitle | Journal of Applied Polymer Science | |
dc.description.volume | 88 | |
dc.description.issue | 10 | |
dc.description.page | 2468-2477 | |
dc.description.coden | JAPNA | |
dc.identifier.isiut | 000181865400014 | |
Appears in Collections: | Staff Publications |
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