Some grades of cis-1,4-polybutadiene contain dispersed crystalline particles made up of a block copolymer having amorphous cis-1,4-and crystalline 1,2 blocks. The particles are known to enhance the strain-induced crystallization of cis-1,4 matrix rubber. The deformational behavior was examined by dy
Stress and thermally induced crystallization in crosslinked cis-polybutadiene
β Scribed by F. De Candia; G. Romano; R. Russo
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 586 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0021-8995
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β¦ Synopsis
Strain and thermally induced crystallization was investigated in crosslinked 1,4-cis-polybutadiene. Data obtained at room temperature, where the crystallization can be only strain induced, &ow that at any given deformation the elastic modulus is a simple function of the crystalline content. On this basis, the modulus data were used to analyze the crystallization phenomena under stress at low temperature. Results show that crystallization occurs with a two-stage mechanism that depends on deformation and temperature.
π SIMILAR VOLUMES
The effect of long branching on the deformational behavior has been examined for four commercial high cis-polybutadienes with particular interest as to its implication on their processability. The techniques used were oscillatory shear measurements at small deformation and tensile stress-strain meas