article published Jonathan Jenderny author Nils Boysen author Jens Rubner author Frederik Zysk author Florian Preischel author Maria Teresa de los Arcos de Pedro author 545560000-0002-8684-273X Varun Raj Damerla author Aleksander Kostka author Jonas Franke author Rainer Dahlmann author Thomas D. Kühne author Matthias Wessling author Peter Awakowicz author Anjana Devi author 302 department <jats:title>Abstract</jats:title><jats:p>Vapor phase infiltration (VPI) has emerged as a promising tool for fabrication of novel hybrid materials. In the field of polymeric gas separation membranes, a beneficial impact on stability and membrane performance is known for several polymers with differing functional groups. This study for the first time investigates VPI of trimethylaluminum (TMA) into poly(1‐trimethylsilyl‐1‐propyne) (PTMSP), featuring a carbon–carbon double bond as functional group. Saturation of the precursor inside the polymer is already attained after 60 s infiltration time leading to significant densification of the material. Depth profiling proves accumulation of aluminum in the polymer itself, but a significantly increased accumulation is visible in the gradient layer between polymer and SiO<jats:sub>2</jats:sub> substrate. A reaction pathway is proposed and supplemented by density‐functional theory (DFT) calculations. Infrared spectra derived from both experiments and simulation support the presented reaction pathway. In terms of permeance, a favorable impact on selectivity is observed for infiltration times up to 1 s. Longer infiltration times yield greatly reduced permeance values close or even below the detection limit of the measurement device. The present results of this study set a strong basis for the application of VPI on polymers for gas‐barrier and membrane applications in the future.</jats:p> Wiley2024 eng 2196-7350 2196-735010.1002/admi.202400171 1128 J. Jenderny <i>et al.</i>, “Tuning the Permeation Properties of Poly(1‐trimethylsilyl‐1‐propyne) by Vapor Phase Infiltration Using Trimethylaluminum,” <i>Advanced Materials Interfaces</i>, vol. 11, no. 28, Art. no. 2400171, 2024, doi: <a href="https://doi.org/10.1002/admi.202400171">10.1002/admi.202400171</a>. Jenderny, J., Boysen, N., Rubner, J., Zysk, F., Preischel, F., de los Arcos de Pedro, M. T., Damerla, V. R., Kostka, A., Franke, J., Dahlmann, R., Kühne, T. D., Wessling, M., Awakowicz, P., &#38; Devi, A. (2024). Tuning the Permeation Properties of Poly(1‐trimethylsilyl‐1‐propyne) by Vapor Phase Infiltration Using Trimethylaluminum. <i>Advanced Materials Interfaces</i>, <i>11</i>(28), Article 2400171. <a href="https://doi.org/10.1002/admi.202400171">https://doi.org/10.1002/admi.202400171</a> J. Jenderny, N. Boysen, J. Rubner, F. Zysk, F. Preischel, M.T. de los Arcos de Pedro, V.R. Damerla, A. Kostka, J. Franke, R. Dahlmann, T.D. Kühne, M. Wessling, P. Awakowicz, A. Devi, Advanced Materials Interfaces 11 (2024). Jenderny, Jonathan, Nils Boysen, Jens Rubner, Frederik Zysk, Florian Preischel, Maria Teresa de los Arcos de Pedro, Varun Raj Damerla, et al. “Tuning the Permeation Properties of Poly(1‐trimethylsilyl‐1‐propyne) by Vapor Phase Infiltration Using Trimethylaluminum.” <i>Advanced Materials Interfaces</i> 11, no. 28 (2024). <a href="https://doi.org/10.1002/admi.202400171">https://doi.org/10.1002/admi.202400171</a>. Jenderny, Jonathan, et al. “Tuning the Permeation Properties of Poly(1‐trimethylsilyl‐1‐propyne) by Vapor Phase Infiltration Using Trimethylaluminum.” <i>Advanced Materials Interfaces</i>, vol. 11, no. 28, 2400171, Wiley, 2024, doi:<a href="https://doi.org/10.1002/admi.202400171">10.1002/admi.202400171</a>. @article{Jenderny_Boysen_Rubner_Zysk_Preischel_de los Arcos de Pedro_Damerla_Kostka_Franke_Dahlmann_et al._2024, title={Tuning the Permeation Properties of Poly(1‐trimethylsilyl‐1‐propyne) by Vapor Phase Infiltration Using Trimethylaluminum}, volume={11}, DOI={<a href="https://doi.org/10.1002/admi.202400171">10.1002/admi.202400171</a>}, number={282400171}, journal={Advanced Materials Interfaces}, publisher={Wiley}, author={Jenderny, Jonathan and Boysen, Nils and Rubner, Jens and Zysk, Frederik and Preischel, Florian and de los Arcos de Pedro, Maria Teresa and Damerla, Varun Raj and Kostka, Aleksander and Franke, Jonas and Dahlmann, Rainer and et al.}, year={2024} } Jenderny J, Boysen N, Rubner J, et al. Tuning the Permeation Properties of Poly(1‐trimethylsilyl‐1‐propyne) by Vapor Phase Infiltration Using Trimethylaluminum. <i>Advanced Materials Interfaces</i>. 2024;11(28). doi:<a href="https://doi.org/10.1002/admi.202400171">10.1002/admi.202400171</a> 628732025-12-04T13:07:52Z2025-12-04T13:12:49Z