Surface morphology and end group distributions of the ba c8 polymer films a d freshly prepared films a b and c are afm height images d e and f are tof sims br ion images. That process would yield ions where the intact pdms segment is present it therefore can be used to evaluate the pdms segment length distribution at the surface of the copolymer it was found that the distribution of pdms segment lengths segregated at the surface of the thick film was almo. Determination of oligomeric chain length distributions at surfaces using tof sims segregation effects and polymer properties it was determined that the surface pdms segment length distributions were consistently shifted towards higher masses than the distributions measured in the bulk tof sims analysis of thick copolymer films in the . Tof sims has been shown to be very useful in surface characterizations of polymer materials16810 20 the secondary fragments emitted from a polymer surface are directly related to the surface molecular structure21 23 however there is no direct relationship between the surface chemical composition and the tof sims peak intensities. This multi technique approach is used to examine polymer segment distribution at the surface to examine the mechanism of biodegradation of polymers and to examine polymer tertiary structure at the surface extensive outreach to the local community and the development of science education materials is an important aspect of this work
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