Abstract
AbstractTwo nitrocelluloses of 12.7 and 14.0% nitrogen contents were prepared and fractionated to give samples having M̄n values in the range 2,200—388,000. The effect of chain‐length of the nitrocellulose samples, having the same nitrogen content, on the sorption of nitroglycerine from n‐hexane solution was investigated by means of partition equilibrium experiments. The separate effect of nitrogen content on sorption of nitroglycerine was determined by comparison of sorption isotherms for samples of similar molecular weight but different nitrogen contents. The amount of nitroglycerine taken up was greater for the lower nitrogen content samples, but sorption was not influenced by the molecular weight of the nitrocellulose. The results are discussed in terms of the molecular structure of the nitrocellulose samples, which is determined by the orientation and spacing of the chains in the crystalline and amorphous regions.
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