Composite Cholesteric Nanocellulose Films with Enhanced Mechanical Properties
Bibliographic record
Abstract
Cellulose nanocrystals (CNCs) form cholesteric films that exhibit birefringence, iridescence, and circular dichroism; however, these films are brittle and prone to cracking. Here we report composite cholesteric films formed from CNCs and soft reactive latex nanoparticles (NPs) (the latter underwent in situ cross-linking during film formation). Composite films exhibited a self-stratified morphology, with lateral cholesteric CNC-rich layers and isotropic latex NP-rich layers. The films retained their photonic properties and exhibited significantly enhanced mechanical properties. In comparison with latex-free CNC films, composite films had an ∼60% higher toughness but did not compromise their tensile strength. The combination of photonic performance and improved mechanical properties of the composite nanocellulose films expands the range of applications of these materials for the fabrication of optical devices.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".