Morphology of a hydrogen-bond mediated self-assembling small molecule in a polycarbonate matrix
Bibliographic record
Abstract
Dispersing functional small molecules in a polymer matrix is a well-known method of device fabrication for optoelectronic applications. Normally, no specific interactions such as hydrogen bonding occur between the polymer and the small molecule. The latter does not belong to the category of “self-assembling” molecules. When phase separation occurs, the small molecule would diffuse to the surface and crystallize. In this paper, we describe a very different morphological behaviour of hydrogen-bond mediated self-assembling molecules in a polycarbonate matrix. We used a series of biscarbamates with two hydrogen-bonding motifs and alkyl side chain lengths symmetrically varying from C 4 to C 18 . We infer that the rate of self-assembly is faster than the diffusion of the small molecule to the surface. As a result, crystallization of the small molecule occurs predominantly in the bulk, i.e., sub surface, and not on the surface of the polymer film.Key words: self-assembly, crystallization, diffusion, phase separation.
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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 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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".