Chemists at Karlsruhe Institute of Technology (KIT; Karlsruhe, Germany) are now controlling the fabrication of precision polymers using photochemical reactions at room temperature. The method allows for the precise, planned arrangement of the monomers (individual chain links) along polymer chains of standard length. This was done using a “library” of six types of monomers, each with a different photoreactive molecule attached. The results were verified using matrix-assisted laser desorption/ionization–time-of-flight mass-spectrometry (MALDI–ToF).
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