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Updated: Jun 16, 2026
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Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides
Published on: July 14, 2015
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Simple Strategies to Quantify and Control Polymer Threading into Micropores.
Supreet Kaur1, Benjamin Lesea-Pringle1,2, Surya Marjit1
1Nanoscience Initiative, CUNY Advanced Science Research Center, New York, New York 10031, USA.
Journal of the American Chemical Society
|June 9, 2025
Summary
We developed new methods to track and control how polymers enter microporous particles. This breakthrough enables better design for advanced materials like membranes and catalysts.
Area of Science:
- Materials Science
- Polymer Chemistry
- Nanotechnology
Background:
- Polymer-microporous particle blends are crucial for technologies like membranes, catalysts, and nanocomposites.
- Current limitations exist in quantifying and controlling polymer threading into sub-2 nm micropores, hindering performance and design.
- Understanding polymer-particle interactions is key to advancing these materials.
Purpose of the Study:
- To develop novel strategies for quantifying and controlling polymer threading into microporous particles.
- To enable precise manipulation of polymer-microporous particle interfaces for technological applications.
- To overcome current limitations in the design and performance of polymer-based advanced materials.
Main Methods:
- Utilized solution-state Nuclear Magnetic Resonance (NMR) spectroscopy for label-free, in situ monitoring of polymer chain diffusion into microporous particles.
- Quantified polymer diffusivities by observing the disappearance of NMR signals as polymer chains enter particles due to slow molecular tumbling.
- Engineered particle surface properties via noncovalent self-assembly of coatings to tune polymer threading rates across six orders of magnitude.
Main Results:
- Demonstrated that solution-state NMR can directly monitor and quantify polymer chain threading into microporous particles.
- Showcased the ability to control polymer threading rates over a 6-order-of-magnitude range by modifying particle surface coatings.
- Confirmed that particle size, micropore topology, and polymer chain length were not altered during threading rate modulation.
Conclusions:
- Developed simple, generalizable strategies to quantify and control polymer threading into microporous particles.
- These methods are applicable to a wide range of polymer/particle systems, solvents, temperatures, and concentrations.
- The findings are expected to drive advancements in diverse technological and fundamental areas relying on polymer-microporous particle composites.
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