Degradable time-controlled films

Serizawa T, Yamaguchi M, Akashi M (2003) Time-controlled desorption of ultrathin polymer films triggered by enzymatic degradation. Angew Chem Int Ed 42 1115-1118... 

Iron dithiocarbamate is an important additive for producing photodegrad-able polyolefins which have time-controlled decay of their mechanical properties [116,124,1917,1920]. Their potential uses range from very shortlived materials such as packaging which is required to degrade in the environment immediately it is discarded, through protective films for annual crops, where a lifetime of several months is required, to a protective mulch for young trees, which may be required to stand up to 3-4 years in exposed environments before embrittlement. 

Time-control of degradable plastics in protective films... 

Cold splitless WCOT thick film Idem Reproducible and accurate sampling Controlled evaporation No discrimination on basis of b.p. Large volume injection Low detection limits Minimisation of solvent entering column Allows polar solvents Automation Small sample size introduction (<2 xL) Thermal degradation possible (long residence times of components in liner)... 

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