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Diffusion of orǵanic compounds in saturated polyolefins

✍ Scribed by O. Cicchetti; M. Dubini; P. Parrini; G.P. Vicario; E. Bua

Publisher
Elsevier Science
Year
1968
Tongue
English
Weight
458 KB
Volume
4
Category
Article
ISSN
0014-3057

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✦ Synopsis

The diffusion of 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-n-butoxybenzophenone, 2-hydroxy-4-n-octoxybenzophenone, 2-hydroxy-4-n-dodecoxybenzophenone, 2-hydroxy-4-n-octadecoxybenzophenone has been studied. The polymers examined were: stereoblock polypropylene (between 70 ° and 85 °) high density polyethylene (between 80 ° and 110°), low density polyethylene (between 700 and 90°). Also the diffusion of dimethyl-3, 3'-thiodipropanoate and di-n-hexyl-3, 3'thiodipropanoate in low crystalline polypropylene was studied between 20 ° and 40 °. The diffusion coefficients are reported. The effect of mutual compatibility between penetrant and polymer upon the diffusion process is discussed. The linear relation In Do = --14.8 + 0.43 Ea/T is obtained for the diffusion in saturated polyolefins using these and other published data.

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