Thienoisoindigo-based recyclable conjugated polymers for organic electronics
Bibliographic record
Abstract
In transient electronics, imine-based semiconducting polymers based on thiophene-flanked diketopyrrolopyrrole (TDPP) are widely used to realize naturally disposable electronic devices. However, TDPP units easily decomposed even under mildly acidic conditions in the biodegradation of electronic devices. Herein, we have designed and synthesized two chemically recyclable thienoisoindigo (TII)-based polymers bearing an imine bond at the depolymerized position, in which these polymers were prepared from polycondensation reactions of dialdehyde-functionalized monomer TII-(CHO)2 with p-phenylenediamine (PPD) to produce p(TII-PD) and 2,6-naphtalenediamine (2,6ND) to produce p(TII-2,6ND), respectively. Especially, we have examined the recyclability of both polymers. In the degradation process under mildly acidic conditions, our polymers showed excellent degradability within one day, and the TII-(CHO)2 monomer was retrieved with over 90% yield and exhibited remarkable chemical stability over 6 months under the degradation conditions. We prepared the same recycled polymers as p(TII-PD) and p(TII-2,6ND) by utilizing the recovered TII-(CHO)2 monomer. The recycled polymers displayed almost the same physicochemical properties and field-effect mobilities in the order of 10-2-10-3 cm2/Vs as the pristine polymers. These reproducible results suggest that the TII-based monomer unit is an excellent building block for developing fully recyclable semiconducting polymers.
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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 | 0.001 | 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 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".