Mastication of rubber. VI. Viscosity and molecular weight relationships for natural rubber after cold mastication
1957; Wiley; Volume: 25; Issue: 109 Linguagem: Inglês
10.1002/pol.1957.1202510901
ISSN1542-6238
AutoresD. J. Angier, W. T. Chambers, W. F. Watson,
Tópico(s)biodegradable polymer synthesis and properties
ResumoAbstract Values of limiting viscosity number, Huggins' interaction constant, k ′, osmotic molecular weight and Flory‐Huggins' constant, μ, of masticated and unmasticated rubber have been compared. A calibration of limiting viscosity against molecular weight has been obtained formasticated rubber, but one is not available for unmasticated rubber due to the occurrence of different extents of branching. A mechanism is advanced of rupture during mastication of molecules above a critical molecular weight.
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