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Irradiation of linear polyethylene - Partitioning between sol and gel.Molecular weight fractions of linear polyethylene were irradiated at 133 C, in the completely molten and highly crystalline states, for the purpose of assessing the importance of chain-scission processes and establishing the critical conditions for gelation. The partitioning between sol and gel in either state was found to adhere to the theory for the intermolecular cross-linking of monodisperse species for dosages just beyond the gel point. Deviations from theory occurred as the dosage was increased further. It was concluded that main-chain scission, at these temperatures, is not a significant process. High molecular weight samples in the completely molten state obeyed the Flory-Stockmayer condition for critical gelation.
Document ID
19720031592
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Rijke, A. M.
Mandelkern, L.
(Florida State University Tallahassee, Fla., United States)
Date Acquired
August 6, 2013
Publication Date
October 1, 1971
Publication Information
Publication: Macromolecules
Volume: 4
Subject Category
Chemistry
Accession Number
72A15258
Funding Number(s)
CONTRACT_GRANT: NGR-10-004-005
CONTRACT_GRANT: NSG-247-62
Distribution Limits
Public
Copyright
Other

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