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Beyond Dispersity: Deterministic Control of Polymer Molecular Weight Distribution
Dillon T Gentekos1, Lauren N Dupuis1, Brett P Fors1
1Cornell University , Ithaca, New York 14853, United States.
Journal of the American Chemical Society
|January 30, 2016
Summary
Researchers developed a new method for precisely controlling polymer molecular weight distributions (MWD) by regulating reaction initiation. This allows tuning material properties by adjusting MWD composition.
Area of Science:
- Polymer Chemistry
- Materials Science
Background:
- Polymer molecular weight distribution (MWD) significantly impacts material properties.
- Current synthetic methods lack precise control over MWD shape and composition.
Purpose of the Study:
- To develop a modular strategy for deterministic control over polymer MWD.
- To enable tuning of material properties by precisely controlling MWD composition.
Main Methods:
- Utilized temporal regulation of initiation in nitroxide-mediated polymerization.
- Employed a modular strategy applicable to controlled polymerizations with discrete initiators.
Main Results:
- Achieved deterministic control over polymer MWD.
- Demonstrated the ability to precisely tailor MWD composition.
Conclusions:
- The reported strategy offers precise control over polymer MWD.
- This method allows MWD composition to be used as a tunable parameter for material properties.
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