Wettability of Maleimide Copolymer Films: Effect of the Chain Length of <i>n</i>-Alkyl Side Groups on the Solid Surface Tension
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Bibliographic record
Abstract
We report bulk and surface properties of maleimide copolymers with two different backbones, poly(propene- alt - N -( n -alkyl)maleimides) (PAlkMI) and poly(styrene- alt - N -( n -alkyl) maleimides) (SAlkMI), with different lengths of n -alkyl side chains (methyl, ethyl, propyl, butyl, pentyl, hexyl, octyl, and dodecyl). The contact angle and solid surface tension results suggest that, for the longer side chains, the surface properties are dominated by the side chains. Indeed, the surface tension of the two types of copolymers with length of the side chain above C = 6 are essentially equal, indicating complete shielding of the polar backbone chain. For the two copolymers containing dodecyl side chains, the solid surface tension is similar to that of solid surfaces consisting exclusively of CH 3 groups. Apparently, these side groups are long enough to allow arrangement in the configuration of the lowest surface free energy possible for alkyl chains. For the short side chain copolymers the styrene compounds are more hydrophobic than the propene compounds. The bulkier phenyl rings shields the polar backbone chain more effectively than the small alkyl groups.
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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 | 0.001 | 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 | 0.000 |
| 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 it