Polystyrene-<i>b</i><i>lock</i>-polyisoprene Nanofiber Fractions. 1. Preparation and Static Light-Scattering Study
Why this work is in the frame
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Bibliographic record
Abstract
Block copolymer nanofibers may be viewed as the macroscopic counterparts of polymer chains or supra−polymer chains. Well-characterized nanofiber fractions with narrow length distributions are required to facilitate their study by techniques such as viscometry and dynamic light scattering. Polystyrene- block -polyisoprene (PS- b -PI) nanofibers were prepared in this study by stirring S 2 Cl 2 -treated PS- b -PI films in THF to separate and disperse the cross-linked PI cylindrical domains. Nanofiber fractions were obtained by combining centrifugation fractionation and ultrasonication. These fractions were characterized by transmission electron microscopy to obtain their length distribution functions and static light scattering to yield the weight-average molar masses and z -average radii of gyration. A quantitative analysis of the radius of gyration values revealed that the PS- b -PI nanofibers had a persistence length of ∼200 nm in THF.
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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 | 0.001 |
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 it