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Tailor‐made polymers and copolymers from aziridines and 1,3‐oxacyclanes
Author(s) -
Velichkova Rumiana,
Christova Darina,
Gancheva Valeria
Publication year - 1994
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19940850111
Subject(s) - copolymer , bifunctional , cationic polymerization , polymer chemistry , polymer , telechelic polymer , end group , macromonomer , vinyl ether , living cationic polymerization , polymerization , materials science , chemistry , organic chemistry , catalysis
Telechelic poly(tert‐butylaziridine)s (polyTBA) and poly(1,3,6‐trioxocane)s (polyTOC) and macromonomers were synthesized mainly by living cationic polymerization. Both, molecular weight and end‐functionality distributions of polyTOC oligomers and polymers were studied using a combination of HPLC under “critical conditions”, gradient HPLC and SEC with double detection following a preparative HPLC fractionation. Monofunctional and bifunctional polyTBA with various end‐groups were synthesized by the end‐capping method. Several modification reactions were examined for terminal transformation of polyTBA and polyTOC hydroxy‐telechelics into mono‐ and bifunctional vinyl ether macromonomers. Various tailor‐made polymers based on uniform size telechelics and macromonomers were prepared using: 1. polymer‐polymer coupling to produce block copolymers; 2. polyaddition of amino‐functionalized telechelics to bisacrylamides; 3. addition of amino‐polyTBA to polydienes; 4. synthesis of graft copolymers with well‐defined graft component and networks.