Kinetic studies on copolycondensation processes. VI. Influence of copolycondensation temperature on tetrad distribution of the PDT/FT aromatic copolyterephthalate by 1H-NMR spectroscopy

Kinetic studies on copolycondensation pr

Kinetic studies on copolycondensation processes. V. Investigations on sequence distribution of fully aromatic copolyester by PMR spectroscopy

✍ M. Matlengiewicz; M. Gibas; E. Turska 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 303 KB 👁 1 views

PMR spectroscopy and lanthanide shift reagents were used to determine sequence distribution of units of poly(dimethy1dian-phenolphta1ein)terephthalate. The calculated values of degree of randomness confirm the theory that the copolyester obtained at the isokinetic temperature (200°C) has random dist