Compression-Induced Stereocomplexation of Polylactides at the Air/Water Interface
Bibliographic record
Abstract
The conformational and morphological changes occurring at the air/water interface during the compression of pure poly( d -lactide) (PDLA), pure poly( l -lactide) (PLLA), and their equimolar blend have been thoroughly investigated using polarization−modulation infrared reflection−absorption spectroscopy and Brewster angle microscopy. The results obtained show that the plateau region observed in the isotherm of the pure polylactides corresponds to an equilibrium between free 10 3 helices in a fluid phase and 10 3 helices in unstable solidlike domains. For the blend, this plateau corresponds to an equilibrium between free 10 3 helices in the fluid phase, 10 3 helices in unstable solidlike domains of pure polyenantiomers, and 3 1 helices in very stable solidlike domains of the PDLA/PLLA stereocomplex. The results obtained also suggest that the proportion of stereocomplex and pure polyenantiomers domains formed during the compression of the monolayer of the blend can be modulated by different experimental parameters such as the molecular weight of the polymers, the subphase temperature, the compression rate, and the “incubation” time.
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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) | 0.001 | 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".