Focal Point Association of Core-Crystalline Micelles with an Amphiphilic Corona Block
Bibliographic record
Abstract
We report the preparation of star-like supermicelles by the secondary association of triblock comicelles or scarf-like micelles driven by a change in solvency. These building blocks were synthesized by seeded growth in which crystallites of a triblock terpolymer, either PFS 27 - b -PTDMA 81 - b -POEGMA 45 (to form triblock comicelles) or PFS 66 - b -PTDMA 81 - b -POEGMA 45 (to form scarf-like micelles), served as seeds for crystallization-driven self-assembly (CDSA). PFS- b -PTDMA unimers were added in the seeded growth step. The corona-forming block PTDMA–POEGMA is amphiphilic and sensitive to polarity changes of the solvents. We sought solvents in which the upper critical solution temperature (UCST, T UCST ) of POEGMA was slightly above room temperature (RT). Examples included 1-decanol and 1-decanol/decane mixtures. Seeded growth proceeded normally in solvents above the UCST of POEGMA. When the solution temperature was lowered below T UCST, or when the triblock comicelles or scarf-like micelles were transferred to a solvent (e.g., 1-decanol) below its T UCST, the center blocks associated to form star-like supermicelles. The addition of small amounts of THF to the medium to increase the solvency for POEGMA led to dissociation of the supermicelles. Transfer of the triblock comicelles to 1-pentanol at RT, below the UCST of PTDMA, also led to controlled secondary association to form supermicelles with a different morphology. Seeded growth with PFS 25 - b -PDMAEMA 184 unimers led to supermicelles in which the poly(dimethylaminoethyl methacrylate) corona chains could serve as carriers for gold nanoparticles (AuNPs). These AuNP@supermicelle complexes could serve as recoverable catalysts, for example to catalyze the condensation polymerization of bis(dimethylsilyl)benzene and pentanediol. They were highly active catalysts and showed excellent mechanical robustness for recovery and reuse.
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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) | 0.000 | 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".