Synthesis and Solution Self-Assembly of Coil−Crystalline−Coil Polyferrocenylphosphine-<i>b</i>-polyferrocenylsilane-<i>b</i>-polysiloxane Triblock Copolymers
Bibliographic record
Abstract
A series of well-defined coil−crystalline−coil PFP- b -PFS- b -PDMS triblock copolymers (PFP = poly(ferrocenylphenylphosphine), PFS = poly(ferrocenyldimethylsilane), and PDMS = poly(dimethylsiloxane)) of narrow polydispersity (PDI 1.04−1.06) with short PFP blocks of variable length and PFS:PDMS ratios of ca. 1:5−1:12 were prepared by sequential anionic ring-opening polymerization of the [1]phosphaferrocenophane fcPPh (fc = Fe(η-C 5 H 4 ) 2 ), the [1]silaferrocenophane fcSiMe 2, and the cyclic siloxane [Me 2 SiO] 3 . Hexane is a selective solvent for PDMS in these ABC triblock copolymers. In the case of the very short PFP blocks (DP ⩽ 6), self-assembly afforded cylindrical micelles with an organometallic core and a PDMS corona. For the sample with the longest PFP block (DP = 11), we found spherical micelles. These results are consistent with increased disruption of the crystallization of the PFS block as the PFP block is increased in length, favoring formation of spherical rather than low curvature cylindrical structures. Results of wide-angle X-ray diffraction measurements support this conclusion.
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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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.010 | 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".