Anisotropic Thermal Conductivity in Imine-Linked Two-Dimensional Polymer Films Produced by Interfacial Polymerization.

ABSTRACT: Anisotropic thermal transport was measured in imine-linked two-dimensional polymer (2DP) films that were prepared by interfacial polymerization. Measurements of both in-plane (k_∥) and cross-plane (k_⊥) thermal conductivities relied on preparing free-standing 2DP films that were readily transferred for different measurement configurations. We polymerized two 2DP (Per-PDA and TAPPy-PDA) films at a liquid-liquid interface. These polycrystalline, imine-linked 2DP films are 100-200 nm in thickness and were measured by frequency domain thermoreflectance to extract k_⊥ and a suspended calorimetric platform technique to evaluate k_∥. We find that k_∥ is larger than k_⊥ in both materials at room t

SUBMITTER: Liang Y 

PROVIDER: S-EPMC12120993 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature