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Synthesis and characterization of star‐shaped polytetrahydrofuran
Author(s) -
Van Caeter Peter,
Goethals Eric J.
Publication year - 1997
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.1997.030180506
Subject(s) - characterization (materials science) , star (game theory) , star polymer , polymer science , materials science , polymer chemistry , copolymer , nanotechnology , composite material , physics , polymer , astrophysics
Star polymers of tetrahydrofuran (polyTHF) were prepared by reaction of living polyTHF with diethylene triamine (DETA) in the presence of 2,2,6,6‐tetramethylpiperidine (TMP) as proton trap. The influence of several reaction parameters on the end‐capping reaction was studied in order to produce stars having varying number of arms. With a starting living polyTHF with a molecular weight of 1600, star‐shaped polymers containing up to seven polymer chains could be prepared. When the molecular weight of the living polyTHF was 8000, at most five polymer chains could be grafted on the DETA. Some physical properties of the star polymers were compared with those of their linear counterparts of the same molecular weight.