1 research outputs found
Synthesis of Telechelic Poly(<i>p</i>‑benzamide)s
Well-defined
telechelic polyÂ(benzamide)Âs were synthesized by chain-growth polycondensation
of phenyl-4-amino benzoate and pentafluorophenyl-4-amino benzoate
derivatives with a bifunctional initiator in the presence of LiTMP
as base. The polymerization was carried out at −70 °C
to prevent self-initiated polymerization. To confirm the control over
molecular weight, different defined molecular weight polymers were
synthesized and analyzed by GPC. Taking advantage of the labile ester
end groups of these polyÂ(benzamide)Âs, we carried out postpolymerization
modifications to introduce different end functional groups such as
alkyne, amine, alcohol, alkyl halide, and olefin suitable for different
types of postpolymerization reactions. Successful end group modification
was confirmed by <sup>1</sup>H NMR spectroscopy and isotopically resolved
MALDI-ToF mass spectrometry