Dehydration, Micellization, and Phase Separation of Thermosensitive Polyoxazoline Star Block Copolymers in Aqueous Solution
Bibliographic record
Abstract
Suitably end-functionalized diblock copolymers (2-isopropyl-2-oxazoline)- b -(2-ethyl-2-oxazoline) (PIPOZ- b -PEOZ) were linked to a tetrafunctional core to synthesize two isomeric thermosensitive 4-arm star block polymers which have the PIPOZ block near the core, core-(PIPOZ- b -PEOZ) 4, or near the outer surface the star polymer, core-(PEOZ- b -PIPOZ) 4 . The solution properties of the star copolymers in water were monitored by turbidimetry, microcalorimetry, and small-angle X-ray scattering (SAXS). The dehydration and cloud-point temperatures of both core-(PIPOZ- b -PEOZ) 4 and core-(PEOZ- b -PIPOZ) 4 in water are in the vicinity of 50 °C. Above this temperature, core-(PIPOZ- b -PEOZ) 4 forms starlike aggregates or star micelle, whereas core-(PEOZ- b -PIPOZ) 4 remains isolated, with no sign of aggregation. These results demonstrate the importance of chain architecture on the association of thermosensitive tetra-arm star block copolymers in water above the dehydration temperature.
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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) | 0.000 | 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 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".