Effect of oven aging on polypropylene
β Scribed by M. G. Wyzgoski
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 958 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0021-8995
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## Abstract Structural changes occurring during the aging of polypropylene quenched from the melt have been investigated by measurements of gas transport parameters and mechanical properties. Major changes in diffusion and sorption behavior during the first 30 hr of aging at room temperature were f
Syndiotactic polypropylene (sPP) was quenched from the melt in an icewater bath, and changes in the structural organization, during the aging time, were followed by X-rays, differential scanning calorimetry, and transport properties of dichloromethane at low activities. After 1 month, an increase of