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Kinetic Study of the Polymerization of Aromatic Polyurethane Prepolymers by High-throughput Experimentation by László I. Majoros; Bernard Dekeyser; Richard Hoogenboom; Martin W. M. Fijten; Jan Geeraert; Nancy Haucourt; Ulrich S. Schubert is a Materials Science article available to read on EtoBox.
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## Abstract In this contribution, high‐throughput screening experiments are reported to study the polymerization of different aromatic polyurethane (PU) prepolymers. The prepared prepolymers were synthesized from toluene diisocyanate (T80) with different molar mass polyether diols and polyether triols, respectively. The reactions were performed in solution using a Chemspeed AcceleratorTM SLT106 automated parallel synthesizer as well as in bulk to evaluate the high‐throughput approach for this kind of prepolymers. More than 100 samples were prepared and characterized by GPC within 1 week labor time to investigate the reaction kinetics and to compare the resulting trends obtained by high‐throughput experimentation (HTE) or by conventional, bulk prepolymerization. The synthesis of the prepared prepolymers with a linear (T80‐Diol) or a branched (T80‐Triol) structure followed a second‐order kinetic in solution but showed deviation from this phenomenon in bulk under the selected reaction conditions, although the same trends are observed in both cases. The calculation of the rate constants allowed comparing the reactivity of different prepolymer systems, which could have a significant inf
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It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- László I. Majoros; Bernard Dekeyser; Richard Hoogenboom; Martin W. M. Fijten; Jan Geeraert; Nancy Haucourt; Ulrich S. Schubert
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0887-624X)
- Published
- 2009
- Language
- EN
- Field
- Materials Science (Physical Sciences)