Polymer surface functional groups

D. E. Williams and J. P. Cannady, Analysis of polymer surface functional groups. Abstracts, 182nd ACS National Meeting, p. 1NDE-23 (1981). 

The Influence of Polymer Surface Functional Groups in Metal/Polymer Interfacial Chemistry... 

In ophthalmology polyfdimethyl siloxane) requires good cell seeding, which is not possible on extremely hydrophobic polymer surfaces. Due to the need for reactive groups on the carrier polymer surface, functional groups are built up by plasma-induced graftpolymerization of suitable monomers like HEMA. 

Surface properties are generally considered to be controlled by the outermost 0.5—1.0 nm at a polymer film (344). A logical solution, therefore, is to use self-assembled monolayers (SAMs) as model polymer surfaces. To understand fully the breadth of surface interactions, a portfoHo of chemical functionahties is needed. SAMs are especially suited for the studies of interfacial phenomena owing to the fine control of surface functional group concentration. 

One of the more important generalizations emphasized in this book is that the solids can be considered as inorganic and organic polymers, the surfaces of which can be looked at as extending structures bearing surface functional groups. These functional groups contain the same donor atoms which are found in functional... 

Perhaps the most viable short-term use for dendritic macromolecules lies in their use as novel catalytic systems since it offers the possibility to combine the activity of small molecule catalysts with the isolation benefits of crosslinked polymeric systems. These potential advantages are intimately connected with the ability to control the number and nature of the surface functional groups. Unlike linear or crosslinked polymers where catalytic sites may be buried within the random coil structure, all the catalytic sites can be precisely located at the chain ends, or periphery, of the dendrimer. This maximizes the activity of each individual catalytic site and leads to activities approaching small molecule systems. However the well defined and monodisperse size of dendrimers permits their easy separation by ultrafiltration and leads to the recovery of catalyst-free products. The first examples of such dendrimer catalysts have recently been reported... 

Reaction of Chemically Active Polymer with the Surface Functional Group... 

The filler-elastomer chemical interactions take place through its surface functional groups and hydrogen atoms. Coupling agents improve polymer-filler adhesion. From the point of view of dynamic-mechanical properties for low strains, the filler-elastomer bonds have a positive effect in the reinforcement process. 

This study is devoted to the investigation of porous methacrylate polymeric systems filled with chemically modified fumed silicas. IR and 13C NMR spectroscopies combined with AFM was applied to characterize changes in the material structure, and also the effect of surface functional groups of inorganic particles on the polymer-filler interaction. 

Fig. 2. Various coupling methods of proteins to polymer microspheres having surface functional groups...

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