Determination of ceiling temperature and thermodynamic properties of low ceiling temperature polyaldehydes
Abstract
Knowledge of the ceiling temperature and thermodynamic variables for low ceiling temperature polymers is critical to understanding the material's synthesis and use. Synthesis of the polymer below its ceiling temperature is the routine polymerization route. In situ 1H NMR of the equilibrium polymerization reaction can provide critical information for determining the enthalpy and entropy of polymer formation. Three polyaldehydes were synthesized with in situ 1H NMR, and their energies of formation were determined for the linear region of ceiling temperature. Insights into the mechanism of polymerization were also found using this method. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018, 56, 221–228
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Oct 27, 2017
- Source ID
- 10.1002/pola.28888
Entities
People
- Anthony Engler
- Jared M. Schwartz
- Jihyun Lee
- Oluwadamilola Phillips
- Paul A Kohl
Organizations
- Defense Advanced Research Projects Agency
- Georgia Tech