Table 2.
The summary of pure polymer films with high intrinsic k
| Sample | Fabrication method | Strategy | k (W (mK)−1) | Measurement method | Refs. |
|---|---|---|---|---|---|
| UHMWPE films | Ultradrawing | Chain alignment | 62 | Home-built steady-state system | 2019 [24] |
| UHMWPE films | Ultradrawing | Chain alignment, Enhancing crystallinity | 63 | Laser flash technique (LFT) | 2017 [22] |
| UHMWPE films | Solution gel-shearing | Chain alignment | 10.74 | Hot disk | 2021 [78] |
| Poly(3-hexylthiophene) | Bottom-up oxidative chemical vapor deposition | π-π stacking interactions | 2.2 | Time-domain thermoreflectance | 2018 [79] |
| Grafted brushes of poly(3-methylthiophene) | Surface-initiated polymerization | Polymer brush alignment | 2.0 | Time-domain thermoreflectance | 2016 [80] |
| Poly(N-acryloyl piperidine)/poly(acrylic acid) | Spin casting | Enhancing interchain H-bonds interactions | 1.5 | 3ω method | 2014 [42] |
| Polyacrylic acid | Spin casting | Enhancing degree of ionization | 1.2 | 3ω method | 2017 [81] |
| PLLA | Hot compression and heat treatment | Enhancing crystallinity | 0.348 | LFT | 2018 [36] |
| Liquid crystalline polyimide (PI) | Retaining microscopically ordered chain structure | 2.11 | / | 2021 [82] |