Correlation between glass transition temperature and chain structure for randomly crosslinked high polymers

Re‐Engineering Poly(Acrylic Acid) Binder toward Optimized Electrochemical Performance for Silicon Lithium‐Ion Batteries: Branching Architecture Leads to Balanced Properties of Polymeric Binders

“…As shown in Figure a, as TEGDA increases, the glass transition temperature, or T g , of the synthesized binders decreases, indicating the improved flexibility of the binders that is desirable for silicon anodes. The observed dependence of T g on the incorporated ether chain is consistent with previous reports regarding blended PAA and polyethylene glycol polymers . Rheology property, such as viscosity, is another important parameter that plays a major role in the slurry‐making process .…”

Differential Scanning Calorimetry and Cantilever Deflection Studies of Polymerization Kinetics and Stress in Ultraviolet Curing of Multifunctional (Meth)acrylate Coatings

“…This suggests that the glass transition temperature does not depend much on the rate, neither through variation of excess free volume nor through variation of the network structure built at different radical concentrations. This is consistent with the hypothesis that the glass transition temperature is mainly determined by a combination of chain stiffness and cohesive forces in cross-linked polymers as proposed by Bicerano et al The networks may have already become dense enough that small differences in architecture are not much apparent. Indeed, it has been recently found that the glass transition temperature of a partially cured dimethacrylate copolymer at a given conversion does not depend on light intensity over 4 orders of magnitude change of light intensity .…”

Polystyrene sulfonate threaded in MIL-101Cr( iii ) as stable and efficient acid catalysts

“…Generally, an increasing amount of cross-linker declines the degrees of freedom of the polymer segment as a consequence of topological constraints. 26 This trend agrees well with the previous conclusions and highlight the significance of the mobility of active sites in the catalytic performance. 9 We observed that the rigorous stirring employed in our catalysis test completely disassembles the Amberlyst-15 resin, and a considerable fraction of active sites leached into the solution phase.…”