A NEW METHOD OF PREPARING SUBSTITUTED VINYL COMPOUNDS. DEPOLYMERIZATION STUDIES ON VINYL POLYMERS.1, 2
A NEW METHOD OF PREPARING SUBSTITUTED VINYL COMPOUNDS. DEPOLYMERIZATION STUDIES ON VINYL POLYMERS.1, 2
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一种制备取代乙烯基化合物的新方法。
DOI：
10.1021/jo01165a015
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发表时间：
1947
期刊：
影响因子：
--
通讯作者：
D. Micucci
中科院分区：
文献类型：
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作者：
G. Bachman;H. M. Hellman;K. R. Robinson;R. Finholt;E. J. Kahler;L. Filar;Lowell V. Heisey;L. L. Lewis;D. Micucci
聚乙烯基化合物解聚或“裂解”成简单单体早已为人所知，并已证明可用于测定聚合物的结构和回收塑料工业中的废料。然而，无论是就其理论、实践还是在化学合成中的影响而言，对该过程的系统研究都还没有详尽无遗。本研究的目的是发展一种新的合成取代乙烯基化合物的方法，即通过对聚合物进行化学改性，然后使其解聚。乙烯基聚合物的化学改性已被广泛研究和工业应用，但一般的产品都是直接使用而不是作为单体的来源。这种新方法可以得到某些取代产物，这些产物不能直接由单体乙烯基化合物制得，因为它们中存在的双键具有很大的反应性。基本上，它涉及通过将这些键转化为饱和聚合物，然后通过解聚再生双键来保护这些键免受化学侵蚀。
The depolymerization or “cracking” of polyvinyl compounds to simple monomers has long been known and has proved useful in the determination of structures of polymers and in the recovery of scrap in the plastics industry. How-ever, systematic study of the process has not been exhaustiveeither as regards its theory, practice, or implications in chemical synthesis. The present investi-gation was undertaken with the object of developing a new method for synthesizing substituted vinyl compounds by altering polymers chemically and then depolymerizing them.The chemical alteration of vinyl polymers has been frequently studiedand ap-plied industrially, but in general the products have been used as such rather than as sources of monomers. The new method makes available certain substitution products which cannot be made directly from monomeric vinyl compounds because of the great reactivity of the double bonds present in them. Essentially it involves protection of such bonds from chemical attack by converting them to saturated polymers followed by regeneration of the double bonds through depolymerization.