Linear 1,2-polybutadiene, glass transition temperature (T,) -18OC, is crosslinked a t -10' to -2OOC by y irradiation while strained in simple extension, with extension ratios (&) from 1.2 to 2.7. After release, the sample retracts to a state of ease (A,) a t room temperature. From equilibrium stress
Cities, states, and trust networks: chapter 1 ofCities and States in World History
β Scribed by Charles Tilly
- Publisher
- Springer Netherlands
- Year
- 2010
- Tongue
- English
- Weight
- 242 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0304-2421
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The synthesis of the new symmetrical koiland 2 based on the double fusion of two p-ethylcalix [4]arene in cone conformation by two silicon atoms was achieved and its structure confirmed by X-ray diffraction on a single crystal. Koiland 2, a concave building block possessing two calix-type pre-organi
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