Abstract
Surface functionalization of poly(ethylene terephthalate) fibers (PET) via radical graft polymerization can be controlled by identifying and evaluating mutual interactions between different components in the grafting reaction system. Hansen solubility parameter theory could quantify interactions and affinities of the chemical components, including monomers, initiators, polyester, and solvents, in the system and thus can be utilized in control of the radical graft polymerization on polyester fibers. Previous study has demonstrated the control by using the theory but with limitations on certain monomers. Addition of a crosslinker to the graft reaction system could improve grafting of vinyl monomers in varied hydrophilicity and hydrophobicity. Different crosslinkers could vary interactions of the monomer/crosslinker-solvent and monomer/crosslinker-initiator, which have determining impact on the grafting values of different monomers.
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