Conjugated Polymer with Polydiacetylene Cross-Links Through Topochemical Polymerization of 1,3-Butadiyne Moieties Toward Photopatternable Thin Films
Why this work is in the frame
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Bibliographic record
Abstract
A new methodology to covalently cross-link π-conjugated polymers by generating π-conjugated bridges was developed through the topochemical polymerization of 1,3-butadiyne moieties. Isoindigo-based oligomers containing 1,3-butadiyne were prepared and amide moieties were incorporated to enable hydrogen bonding which promoted an optimal morphology for cross-linking through 1,4-addition. Moreover, the molecular weight of the semiconducting materials was carefully controlled to promote crystallinity, leading to the formation of a nanofibrillar network. Upon formation of polydiacetylene cross-links, the resulting conjugated polymeric network was characterized using grazing incidence X-ray diffraction, Raman spectroscopy, atomic force microscopy, and optical spectroscopy. Furthermore, transient absorption and fluorescence spectroscopy were used to probe for the effect of the new π-conjugated cross-links on photophysical properties. The new π-conjugated bridges were shown to maintain the morphology and the photophysical properties while altering other important properties for polymer processing, such as the solubility. This new, mild, and additive-free photo-cross-linking approach is particularly promising for the patterning and processing of π-conjugated materials and the rigidification of conjugated polymeric network, thus creating new opportunities for the processing of organic semiconductors and fabrication of organic electronic devices.
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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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.016 | 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