Grafts and Blends of Poly(alkyl/arylphosphazenes) of Organic and Inorganic Polymers

南方卫理公会大学化学系的Patty Wisian-Neilson教授获得了有机化学和高分子化学项目的支持，她的研究包括利用阴离子、开环和原子自由基转移聚合制备了一系列接枝聚(烷基/芳基磷腈)，并通过核磁共振光谱、元素分析、差示扫描量热、热重分析和凝胶渗透色谱表征了它们的基本性质。嫁接的数量、长度和类型将系统地变化，并与它们的物理特性相关。气体渗透性、可燃性和稳定和组织无机纳米颗粒的能力将分别通过标准的ASTM易燃性测试、包括气相色谱的渗透研究和透射电子显微镜进行密切检查。在有机化学和高分子化学计划的支持下，威辛-尼尔森教授将制备一系列无机聚合物，并测试它们的基本性质，如热稳定性、在常见有机溶剂中的溶解性、可混性、气体渗透性和阻燃性。这些聚合物稳定和组织金属和半导体纳米颗粒(纳米尺寸的颗粒)的能力也将被研究。

Professor Patty Wisian-Neilson in the Department of Chemistry at Southern Methodist University is supported by the Organic and Macromolecular Chemistry Program for her studies on the preparation of a series of grafted poly (alkyl/arylphosphazenes) using anionic, ring opening, and atom radical transfer polymerization and characterization of their fundamental properties by NMR spectroscopy, elemental analysis, differential scanning calorimetry, thermal gravimetric analysis, and gel permeation chromatography. The number, length, and type of graft will be systematically varied and correlated to their physical properties. Gas permeability, flammability, and the ability to stabilize and organize inorganic nanoparticles will be closely examined by standard ASTM flammability tests, permeation studies involving gas chromatography, and transmission electron microscopy, respectively.With the support of the Organic and Macromolecular Chemistry Program, Professor Wisian-Neilson will prepare a series of inorganic polymers and examine their fundamental properties such as thermal stability, solubility in common organic solvents, miscibility, gas permeability, and flame retardancy. The ability of these polymers to stabilize and organize metal and semiconductor nanoparticles (particles with nanometer dimensions) will also be investigated.