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Nature 161, 803-804 (22 May 1948) | doi:10.1038/161803a0;
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Project Director, Nouabalé-Ndoki Park Project
- Wildlife Conservation Society
- Congo Republic
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Branched-Chain High Polymers
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Abstract
The principle of the method involves the copoly-merization of a small amount of polyfunctional compound such as pentaerythritol, dipentaerythritol, trimethylol propane, with ethylene glycol and adipic acid. The polyfunctional compound is added to a polyethylene adipate of a high degree of polymerization; the polymer is then slightly depolymerized by heating at atmospheric pressure in nitrogen and then repolymerized, with the incorporation of the pentaerythritol, at 0 · 1 mm.
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