STUDIES ON DICATIONICALLY LIVING CHAINS——SYNTHESIS OF α, ω-DIAMINO POLY(THF-b-ESTER-b-THF) TRIBLOCK CO-OLIGOMER
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STUDIES ON DICATIONICALLY LIVING CHAINS——SYNTHESIS OF α, ω-DIAMINO POLY(THF-b-ESTER-b-THF) TRIBLOCK CO-OLIGOMER
Acta Polymerica SinicaIssue 1, Pages: 63-66(1988)
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Published:20 February 1988,
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ZHANG Hong-zhi, FU Jing-guo, YANG Hui-chang, FENG Xin-de. STUDIES ON DICATIONICALLY LIVING CHAINS——SYNTHESIS OF α, ω-DIAMINO POLY(THF-b-ESTER-b-THF) TRIBLOCK CO-OLIGOMER. [J]. Acta Polymerica Sinica (1):63-66(1988)
DOI:
ZHANG Hong-zhi, FU Jing-guo, YANG Hui-chang, FENG Xin-de. STUDIES ON DICATIONICALLY LIVING CHAINS——SYNTHESIS OF α, ω-DIAMINO POLY(THF-b-ESTER-b-THF) TRIBLOCK CO-OLIGOMER. [J]. Acta Polymerica Sinica (1):63-66(1988)DOI:
STUDIES ON DICATIONICALLY LIVING CHAINS——SYNTHESIS OF α, ω-DIAMINO POLY(THF-b-ESTER-b-THF) TRIBLOCK CO-OLIGOMER
The unliving chains of aliphatic polyester were transformed into dicationically living poly-(THF-b-ester-b-THF) chains. By terminating the living chains with liquid ammonia
the α
ω-diaminotriblock co-oligomer was synthesized. This primary amine telechelic triblock modified the epoxy resin to give a toughened product with high strength which is due to the phase separation as demonstrated by viscoelastic data and scanning electron microscopy.