비선형 단위를 갖는 방향족 폴리하이드록시아미드 공중합체의 합성 및 특성

Abstract

In this study, poly(hydroxyamide)s were synthesized by direct polymerization by including non-linear aromatic units in the main chain. The copolymers were completely converted to PBOs by thermal cyclization. The PHAs were analyzed using FT-IR, H-NMR, DSC, TGA and XRD. The inherent viscosity of PHAs was measured in the range of 0.39-0.67 dL / g in a solution of DMAc. PHAs were dissolved in NMP, pyridine, DMAc, DMF, DMSO, and sulfuric acid at room temperature and partially dissolved in THF and TFA. PBOs were partially dissolved in sulfuric acid and NMP. In the thermal analysis graph of DSC, PHAs showed endothermic peaks in the range of 250~320℃. The 10% weight loss temperatures, and residues of all PBOs occurred in the range of 632~666℃, and 65~69%, respectively.