Synthesis and Fluorescent Properties of Polymers of Eu-complexed Acrylic Acid
Bibliographic record
Abstract
Europium complexed monomer(ECM) was prepared by a mixture of EuCl3,thenoyltrifuoroacetone(TTA),acrylic acid(AA) and 1,10-phenanthroline(phen) and then two copolymers of poly(methyl methacrylate(MMA)-co-ECM)(molar ratio for ECM/MMA,1/60 and 1/30),which grafted with Europium complex as light-emiting unit,were synthesized.The structures were characterized by FT-IR,1HNMR.The maximum absorption and emission wavelength of ECM were at 341nm and 613nm respectively.The emission spectra of the copolymers consisted of two emission bands,one between 350~500nm and the other centered at 613nm between 602~630nm,corresponding to f-f* transitions of europium ions.Emission of Europium ions not only originated from energy transfer of ligands in ECM but also from Frster energy transfer of the main chain of polymers.This kinds of polymers exhibited desirable luminescence,solubility and dispersion.Abstract:Europium complexed monomer(ECM) was pre-pared by a mixture of EuCl3,thenoyltrifuoroacetone(TTA),acrylic acid(AA) and 1,10-phenanthroline(phen) and then two copolymers of poly(methyl methacry-late(MMA)-co-ECM)(molar ratio for ECM/MMA,1/60 and 1/30),which grafted with Europium complex as light-emiting unit,were synthesized.The structures were char-acterized by FT-IR,1HNMR.The maximum absorption and emission wavelength of ECM were at 341nm and 613nm respectively.The emission spectra of the copoly-mers consisted of two emission bands,one between 350 ~ 500nm and the other centered at 613nm between 602 ~ 630nm,corresponding to f-f*transitions of europium ions.Emission of Europium ions not only originated from energy transfer of ligands in ECM but also from F rster energy transfer of the main chain of polymers.This kinds of polymers
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), 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".