Rapid tests STAR

Elements are formed by three different mechanisms in stars, as elucidated by Burbidge et al. [82]. In brief, these are the s process, involving the capture of slow neutrons by nuclei the r process, involving the capture of rapid neutrons and the p process, which leads to neutron-deficient nuclides that are generally less abundant than those generated by the s and r processes. The relative abundances of the various isotopes of a given element reveal which processes, or combinations thereof, are involved in their creation in the nuclear reactions that power stars. Measurements of isotopic and elemental abundances in stars thus serve to test theories of stellar processes. 

This library approach probed several key parameters involved in star formation (1) MW of the linear arms of the stars (2) the amoimt of cross-linking agent (3) the type of cross-linking agent (4) the use of comonomer and (5) the effect of concentration and solvent. Using a Symyx core module and a 96-well aluminum-cast glass vial reartor, the entire library of reaction conditions could rapidly be set up in 2-4 h. Automated optimization of the styrene/BMI ratio was first carried out by testing the full matrix with different molar equivalents of each component tmder constant temperature... 

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