Polymer glass transition temperature manipulation via z/e hydrazone photoswitching
AssigneeTrustees of Dartmouth College
InventorsIvan Abrahamian, Sirun Yang, Laura L. Jeliazkov, Jared D. Harris
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Abstract
In an embodiment, the present disclosure pertains to a method of changing the glass transition temperature of a polymer. In some embodiments, the polymer includes at least one hydrazone-containing compound. In general, the methods of the present disclosure include one or more of the following steps of: (1) applying light to the polymer; and (2) thereby changing the glass transition temperature of the polymer. In another embodiment, the present disclosure pertains to a polymer having a light-adjustable glass transition temperature. In some embodiments, the polymer includes at least one hydrazone-containing compound.
Claims13
A method of forming a polymer comprising a light-adjustable glass transition temperature (Tg), said method comprising:
- covalently linking at least one hydrazone-containing compound to a polymer, wherein the hydrazone-containing compound linked to the polymer comprises:
- or combinations thereof,
- wherein at least one of Y and R1 comprises the polymer, and
- wherein Y, R1 and R2 are each independently selected from the group consisting of H, alkyl groups, alkenyl groups, alkoxy groups, aryl groups, ketone groups, amine groups, amide groups, carboxyl groups, carboxylic acid groups, ester groups, thiol groups, sulfoxide groups, alcohol groups, alkyne groups, azide groups, CH2CH3, C(CH3)3, (CH2)5CH3, (CH2)7CH3, (CH2)9CH3, (CH2)11CH3, (CH2)1-20CH3, t-butyl, n-hexyl, n-octyl, n-decyl, n-dodecyl and combinations thereof.
Dependencies are inferred from the claim text.