Rapid stress-induced crystallization in natural rubber
โ Scribed by Mitchell, J. C. ;Meier, D. J.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1968
- Tongue
- English
- Weight
- 714 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0449-2978
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The change in thc fraction crystallinity with time and elongation of synthetic cis-1.4polyisoprene is studied through simultaneous measurement of birefringence and stress. Results are compared with values estimatcd from the decrease in stress arising from the crystallization. Various mcthods for cal
## Synopsis Continuous-wave rapid-passage proton NMR (30 MHz) was performed on lightly crosslinked natural cis-polyisoprene a t elongations up to 720%, at temperatures between -100" and 1OO"C, and after delays of up to several weeks after stretch. A method of separating the spectra into a narrow a
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