Enhanced Reactivity in Surface-Confined Water of Hierarchically Structured Polymers
Bibliographic record
Abstract
The remarkable efficiency of biological chemical reactions is the result of evolution and many of these reactions are promoted by confined water. This has inspired significant research endeavors exploiting the potential of this special water in chemistry. However, these systems are so far limited to complex artificial solids or biphasic systems and small molecules as reactants. Here, we show that the intrinsically present surface-confined water in hierarchically structured biopolymers can be used as nanomedium to promote chemical reactions. We found in the example of cellulose fibers that confined water was actively involved in the reaction mechanism and facilitated the surface acetylation of the fiber, increasing reaction kinetics, efficiency and regioselectivity. Our findings can be regarded as proof-of-principle that the hydration layer in nanoporous polymers can be exploited as medium to promote chemical reactions at their surface. This concept can likely be extended to other polymers and various reaction systems. <br>
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".