Single-Molecule Visualization of Living Polymerization

Abstract

This report summarizes our progress in the STIR funded 9 month period in developing magnetic tweezers based approach to visualize the second-generation Grubbs catalyst (G2) catalyzed ring opening metathesis polymerization (ROMP) at the single-polymer level in real time. Toward this goal, we have made the following progresses: (1) Modification of the G2 catalyst for surface linkage to the magnetic particle (or glass slide). (2) Set-up and testing of the MT instrument. (3) Manipulation of polynorbornene molecules. (4) Real-time ROMP of norbornene under no force load. These results provide the foundation and demonstrate the feasibility of using magnetic tweezers to follow and manipulate single-polymer growth during ROMP by a single catalyst molecule.

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Document Details

Document Type
Technical Report
Publication Date
Feb 18, 2014
Accession Number
ADA606984

Entities

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  • Peng Chen

Organizations

  • Cornell University

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  • Brownian Motion
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  • Chemistry
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  • Chemistry

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  • Polymer Science and Technology