XIAO Changfa. STUDY ON THE CRYSTAL STRUCTURE OF P-HYDROXBENZOATE/2-HYDROXY-6-NAPHTHOIC ACID COPOLYESTER FIBER[J]. Acta Polymerica Sinica, 1996,(5):545-550.
XIAO Changfa. STUDY ON THE CRYSTAL STRUCTURE OF P-HYDROXBENZOATE/2-HYDROXY-6-NAPHTHOIC ACID COPOLYESTER FIBER[J]. Acta Polymerica Sinica, 1996,(5):545-550.DOI:
The structure of P—hydroxybenzoic acid and 2—hyaroxy—6—naphthoic acidcopolyester(HBA/HNA) fiber was studied by means of wide-angle X-ray diffraction and differential scanning calorimetery.Highly oriented HBA/HNA fibers were annealed at100~300℃ for 40h The results showed that the cocrystallization of the comonomerstook place in spite of their random distribution along the molecular chain of the HBA/HNA copolyester fibers.The unit dimensions of the fibers show a change with annealedtemperature
which can be associated with a transformation from an orthorhombic tomonoclinic unit cell.