Precision Polyolefins
Vortragender: Prof. Dr. Ken B. Wagener, University of Florida at Gainesville (USA), z. Zt. MPI für Polymerforschung MainzMi. 04.07.2007 (17:00-18:30), S 84, NW II
Precision polyolefins are polymers where structural features are defined exactly. In this case, the preci-sion structural feature of interest is the branch identity and location of the branch in the polyolefin back-bone, also the type of functional group that is placed in the backbone. Polyethylene is the polymer under study. Precision polyethylene can be best made by step polymeriza-tion techniques (rather than chain techniques), which will be delineated in the presentation. The effect of precise placement of branches and functional groups will be described. For example, it is possible to vary the melting point of polyethylene over a range of approximately 200 degrees centigrade, depending upon the identity of the branch and the frequency of branch appearance.
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