Morphology Studies and Potential Applications of Poly(N,N-dimethylacrylamide)-l-Polyisobutylene Amphiphilic Polymer Conetworks

摘要

A series of poly(N,N-dimethylacrylamide)-l-polyisobutylene (PDMAAm-l-PIB) amphiphilic conetworks were synthesized from two incompatible polymers, i.e. hydrophilic PDMAAm and strongly hydrophobic PIB in a wide range of composition (38-80 m/m% PIB). Swelling experiments were carried out to determine the equilibrium swelling ratios which proved the amphiphilic nature of these new materials, and are in correlation with composition. Thermal analysis (DSC), small angle X-ray scattering (SAXS) and atomic force microscopy (AFM) measurements were carried out. Results show special phase separated morphology, where the size of the phases are in the nanometer range in all cases. Furthermore, the nanophases of the conetworks have composition dependent spatial arrangement. Successful synthesis of silver nanoparticles was achived inside of the conetwork's hydrophilic phases resulting in a novel organic-inorganic nanohybrid material.