Water-Dispersible Tetrablock Copolymer Synthesis, Aggregation, Nanotube Preparation, and Impregnation
Bibliographic record
Abstract
A tetrablock copolymer polyisoprene- block -poly( tert -butyl acrylate)- block -poly[(2-cinnamoyloxyethyl methacrylate)- ran -(2-hydroxyethyl methacrylate)]- block -poly(solketal methacrylate), or PI- b -P t BA- b -P(CEMA- r -HEMA)- b -PSMA, was synthesized and characterized. After PSMA hydrolysis to poly(glyceryl methacrylate), or PGMA, the tetrablock formed cylindrical aggregates in water with a PGMA corona and an insoluble part consisting of PI and P(CEMA- r -PHEMA) core−shell cylinders that sandwich a P t BA thin layer. Water-dispersible nanotubes were obtained after the cross-linking of the P(CEMA- r -HEMA) layer and cleavage of the PI cores with ozone. Both nanotubes containing some ozonized PI fragments and the cross-linked PI- b -P t BA- b -P(CEMA- r -HEMA)- b -PGMA cylindrical aggregates sorbed Pd 2+ from dimethylformamide as a result of the π-allyl complex formation between Pd 2+ and the PI double bonds. The sorbed Pd 2+ was reduced to Pd nanoparticles, and the particles were made to overlap by catalyzing further Pd deposition on them in an electroless Pd plating bath. These polymer/metal hybrid nanofibers with conductive cores may be useful as nanocables or as a catalyst for reagents that can permeate the P(CEMA- r -PHEMA) layer.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), 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".