Materials Literature
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Abstract Films of polyamides were exposed to heat, ultra‐violet radiant energy, and different atmospheric conditions. The degradation products were collected in some cases and analysed by mass‐spectrometric techniques. The unexposed and exposed specimens were examined by the following techniques to obtain information…
It is shown that the conductivity in the ohmic part of the cuprous oxide layer can be explained with the usual band picture of semiconductors only by assuming the presence of some donor-type impurities in addition to the usual acceptor type. The energy difference between the acceptors and the filled band is 0.3 electr…
Abstract Various quantitative scattering relationships for polymers have been examined experimentally in order to test their validity as assumptions in the x‐ray determination of crystallinity. These are ( a ) the proportionality between the scattered intensity and the pt value of the specimen ( p is the density and t…
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