Analytical Degradation of Polyalkenylenes

Analytical Degradation of Polyalkenylenes. - Microstructure characterization of polyalkenylenes via metathetical degradation with a low-molecular-weight olefin continues to be investigated.High yields of degradation products of unmodified polymers and copolymers are usually obtained in contrast, the metathesis degradation products of modified polyalkenylenes is much less reproducible, and low yields are obtained.  

Hummel and associates studied the degradation of polybuta-1,4-diene and a derivative thereof with 9-phenanthryl groups, using oct4-ene or tetradec-7-ene and either a (Me)4Sn/WQe or a EtAlQj/WClg catalyst. Induc- 

Stelzer, K. Hummel, and R. Thummer, Prog. Colloid Polym. Sci., 1979, 66, 411. 

Kerber, Reel. Trav. Chim. Pays-Bas, 1977, 96, M81. H. Demel and K. HummeX, Makromol Chem., 1977, 178, 1699. 

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