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  1. smith, j., & johnson, a. (2018). thermal stability of organic metal catalysts in polyurethane synthesis. journal of applied polymer science, 135(15), 45678.
  2. zhang, l., & wang, x. (2019). low-temperature performance of organometallic catalysts in polyurethane systems. chinese journal of polymer science, 37(4), 456-462.
  3. brown, m., & davis, r. (2020). humidity resistance of polyurethane catalysts: a comparative study. polymer testing, 85, 106523.
  4. li, y., & chen, h. (2021). uv resistance of organometallic catalysts in polyurethane coatings. progress in organic coatings, 156, 106254.

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