THERMOTROPIC WHOLLY AROMATIC POLYTHIOLESTERS CAPABLE OF FORMING AN ANISOTROPIC MELT AND A PROCESS FOR PREPARING THE POLYTHIOLESTERS

摘要

AbstractThermotropic, wholly aromatic polythiolestersexhibit an anisotropic melt. The polythiolesters may beprepared from monomers selected such that all or substantiallyall of the repeating groups are thiolester groups. Alterna-tively, the monomers can be selected such that sufficientthiolester groups are present to impart processability to anormally non-tractable polyester. Preparation of tpe poly-thiolesters is typically accomplished by melt polymerizationof an esterified aromatic mercaptan compound, either aloneor with other copolymerizable monomers. The polythiolestersmay be melt processed into fibers, films or other types ofshaped articles.