Light Scattering Study of Rigid, Rodlike Organometallic Block Copolymer Micelles in Dilute Solution
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Bibliographic record
Abstract
The block copolymer poly(ferrocenyldimethylsilane- b -dimethylsiloxane) (PFS 40 - b -PDMS 480, where the subscripts refer to the mean degree of polymerization) self-assembles in n -decane at 25 °C to form long rodlike micelles (Raez et al. J. Am. Chem. Soc . 2002, 124, 10381). Here, we describe a combination of static (SLS) and dynamic (DLS) light scattering measurements on solutions of the micelles in n -decane. By SLS, we find that the micelles are thin, rigid, rodlike structures with a mean length of ∼960 nm in the limit of zero concentration and a length that increases with concentration. Through a combination of SLS and DLS measurements, we find that that the cross-sectional hydrodynamic diameter of the micelle is 18 nm. These self-assembled structures also appear to have a narrow distribution of lengths (with M w / M n ≈ 1.1). These structures are much smaller than those observed on transmission electron microscopy (TEM) grids obtained from solutions of these self-assembled structures.
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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) | 0.000 | 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 it