A New Approach to the Synthesis of Polyphosphazenes

9812389Allcock该项目是开发和扩展一种新发现的方法，用于合成称为聚磷腈的高级氮磷聚合物。 新的方法涉及在室温下磷亚胺单体的“活性”阳离子缩聚，以得到具有受控分子量、窄分子量分布和与有机大分子形成嵌段共聚物的能力的聚合物。 该计划将强调共聚物的形成，星形支化和树枝状聚合物的合成，以及从有机聚合物表面生长聚磷腈链。这项工作是在新的聚合物领域，应该是有用的非易燃纺织品和建筑材料，或作为组件在航空航天和汽车工程。 此外，这些聚合物还可以应用于先进的固态电池和生物医学。

9812389AllcockThis project is to develop and expand a newly-discovered method for the synthesis of an advanced class of nitrogen-phosphorus polymers known as polyphosphazenes. The new approach involves a "living" cationic condensation polymerization of phosphoranimine monomers at room temperature to give polymers with controlled molecular weights, narrow molecular weight distributions, and the capacity to form block copolymers with organic macromolecules. The program will emphasize copolymer formation, star-branched and dendritic polymer synthesis, and the growth of polyphosphazene chains from organic polymer surfaces.%%%This work is in the area of new polymers that should be useful as non-flammable textiles and building materials, or as components in aerospace and automotive engineering. In addition, applications are possible for these polymers in advanced solid state batteries and in biomedicine.***