Recognition-Induced Supramolecular Dendronized Block Copolymer: Control the Distribution of Guest Molecules in Structured Matrixes

摘要

Molecular recognition affords facile and versatile routes to polymer functionalization, allowing one to obtain distinctly behaving materials from the same polymer backbone through specific attachment of different molecular functionalities Specific non-covalent functionalization of polymers has been used, for example, to facilitate incorporation of performance-enhancing additives, create functionalizable nano-objects and nano-porous materials, modify surface properties,4 and assemble nanoparticles Block copolymers self-organize into well-defined solid- state morphologies on the 10-100 nm scale and thus can be used for directing the segregation of additives for the creation of nano-objects, mesoporous and stimuli-responsive materials , Integration of block copolymer self-assembly with molecular recognition processes provides access to hierarchical materials with a wide range of potential applications. We present here a method for selective modification of specific domain properties of block copolymer films using guests with dendritic substituents of varying size for obtaining different equilibrium morphologies from a single block copolymer scaffold. (Figure 1).