Block Ionomer Complexes with Polystyrene Core-Forming Block in Selective Solvents of Various Polarities. 2. Solution Behavior and Self-Assembly in Nonpolar Solvents
Bibliographic record
Abstract
The self-assembly behavior and structural characteristics of the block ionomer complexes from poly(styrene)- block -poly( N -ethyl-4-vinylpyridinium) (PS- b -PE4VP) cations and bis(2-ethylhexyl) sulfosuccinate (AOT) anions in nonpolar solvents were examined by turbidity, viscometry, sedimentation velocity, isothermal diffusion, and dynamic light scattering techniques. The complexes were synthesized by reacting PS- b -PE4VP with AOT in aqueous media. The resulting water-insoluble materials contained PS block and PE4VP/AOT complex block. The length of PS block was constant and equal to 100 units, while the length of PE4VP/AOT block was varied (100−500 units). These complexes dissolved in hexane upon addition of small amounts (0.5−10 vol %) of aliphatic alcohols and formed stable dispersions with the size of the particles varying from 50 to 95 nm. The particles represented micelle-like aggregates of PS- b -PE4VP/AOT complexes with the core formed by PS chains and the shell formed by PE4VP chains electrostatically bound to AOT ions. The behavior and molecular characteristics of these previously unknown structures (shape, dimensions, chain stretching, and aggregation numbers) resemble those of the micelles formed by nonpolar block copolymers in selective organic solvents. Such systems are unprecedented for the block copolymer aggregates in organic solvents and may have considerable theoretical and practical significance.
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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".