Ionomer and Mesomorphic Behavior in a Tail-End, Ionic Mesogen-Containing, Comblike Copolymer Series
Why this work is in the frame
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Bibliographic record
Abstract
A series of homologous statistical polymethacrylate comb copolymers with tail-end 4-(dimethylamino)pyridinium ionic groups were synthesized by partial quaternization of high molar mass poly(12-bromododecyl methacrylate). The copolymers of lower ion content are found to be biphasic by differential scanning calorimetry, resembling classical ionomers, with a lower glass transition temperature ( T g ) that remains constant up to about 20 mol % ion content before increasing and a higher T g that increases monotonically with ion content. X-ray analysis indicates the presence of a soft phase with an invariant microstructure for all of the copolymers, whereas the hard-phase microstructure, considered to be a disordered partial bilayer in the ionic homopolymer, is characterized by an increasing long period with decreasing ion content. Models to reconcile the various data are proposed, which show how large amounts of nonionic units can be incorporated into the hard-phase microstructure, with the invariant soft-phase microstructure also rationalized. This copolymer series thus bridges ionomer and mesomorphic polysoap characteristics by the presence of two phases whose relative proportions vary with ion content, both of which possess their own (short-range) microstructure that determines the nature of their evolution with copolymer composition.
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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) | 0.001 | 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