In addition,poly(p-phenylenebenzobisoxazole)(PBO) with high molecular weight was prepared from 4,6-diaminoresorcinol salts and terephthalic acid in polyphosphoric acid by solution polycondensation. 运用三氯苯法制备了4,6-二氨基间苯二酚(DAR),并分别采用盐酸和磷酸对其进行酸稳定化处理,用红外光谱(FTIR)...
Poly (p-phenylene benzobisoxazole) (PBO) is a rigid-rod polymer with phenyl rings and heterocyclic groups in the backbone. 聚对苯撑苯并二噁唑(PBO)是一种由苯环及芳杂环组成的高分子材料,具有非常优异的力学性能,以及极佳的热学和化学稳定性,在尖端科技领域有着广阔的应用前景,因而成为高性能材料领域的研...
hanical performance Poly(p-phenylenebenzobisoxazole) nanofiber layered composite films with high thermomechanical performancePoly(p-phenylenebenzobisoxazole) nanofiber layered composite films with high thermomechanical performancePoly(p-phenylenebenzobisoxazole...
采用光谱技术,研究了聚对苯撑苯并双噁唑(PBO)溶液的光致发光特性,并用相对法估算出溶液发光效率在50%范围。 UV and PL spectra of poly-p-phenylenebenzobisoxazole(PBO) in MSA solution are studied and dis...
Here, we demonstrate an all-in-one interfacial solar evaporator made from poly(p-phenylene benzobisoxazole) nanofiber (PBONF)/graphene oxide (GO) and PBONF/reduced graphene oxide (RGO) composite aerogels with high porosity, robust mechanical properties, and excellent thermal insulation performance. ...
Novel Fine Structures in Poly-p-phenylenebenzobisoxazole Fibers Induced by Water Vapor, Hot Water, and Non-Aqueous Coagulation I Molecular Orientation Along the Fiber Axis and Fine Structuresfiber structuremicro-focus X-ray diffractionPBOpreferential orientation...
The thermal conductivities of compression molded thin films of poly-p-phenylene-2,6-benzobisoxazole (PBO) were measured in directions along an in-plane axis in the 10-300 K temperature range by a steady-state heat flow method, with interest in the use of the material for superconductivity ...
Poly(p-phenylenebenzobisoxazole) (PPBO) is a polymer having the most excellent thermal properties among the organic polymers reported to date, and the design and the preparation of PPBO with the desired shape and form are expected to provide novel PPBO-based devices and materials in the fiel...
Poly(p-phenylene benzobisoxazole)(PBO) is a candidate of high performance materials for many applications. PBO materials' properties are considered to be closely related to their fabrication process, especially coagulation. In this paper, the coagulation effect on the chemical and microstructure of PBO...
This study investigates the thermal stability of poly( p -phenylenediamine-terephtalamide) (PPT) and poly( p -phenylenebenzobisoxazole) (PBO) fibres. Excellent behaviour of PBO is shown in comparison to that of PPT. The thermal stability (under pyrolytic or thermo-oxidative conditions) of PBO ...