An infrared method has been developed for the determination of the isotacticity of polypropylene in the 90-100~o range. The method requires the annealing of thin films a t 165-167Β°C. for 3 hr. in an inert at>mosphere, followed by slow cooling to room temperature. For approximate answers the ratio of
Determination of the degree of helical structure and related isotacticity of polypropylene by an infrared method
β Scribed by James J. Brader
- Publisher
- John Wiley and Sons
- Year
- 1960
- Tongue
- English
- Weight
- 192 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0021-8995
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