Dendritic Crystallization of Poly(<scp>l</scp>-lactide)/poly(<scp>d</scp>-lactide) Stereocomplexes in Ultrathin Films
Bibliographic record
Abstract
Ultrathin films (12–125 nm) of poly( l -lactide)/poly( d -lactide) (PLLA/PDLA) blends of different compositions have been crystallized between 180 and 210 °C, i.e., above the melting point of each polymer crystallized separately. The overall crystal shape depends on the temperature, film thickness and ratio of the two polyenantiomers in the blends. In nonequimolar blends, lamellae show curvatures, and the sense of the curvature is determined by the chirality of the polyenantiomer in excess, blend ratio, film thickness, crystallization temperature and lamellar orientation (flat-on or edge-on). The curvature of the stereocomplex lamellae is ascribed to the unequal amount of PLLA and PDLA segments at the crystal growth front, creating an unbalanced mechanical stress at the chain folding surfaces which can be released by a curvature of the growth tip.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 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".