Identification of Hydroxyl and Polysiloxane Compounds via Infrared Absorption Spectroscopy with Targeted Noise Analysis

Polymers, Год журнала: 2025, Номер 17(11), С. 1533 - 1533

Опубликована: Май 30, 2025

This investigation of hydroxyl and polysiloxane absorption peaks in elastic polymer composites reveals significant spectral shifts within the fingerprint region FTIR spectra. Using poly(vinyl butyral) (PVB) as base acetate) (PVAc) alcohol) (PVA) reference materials, solvent effects on polymer–solvent interactions were systematically analyzed. Among tested alcohol solvents, PEG 400 induced most pronounced changes, with C=O stretching band shifting from 1740 to 1732 cm−1 O–H significantly broadening downshifting around 3300 cm−1, reflecting strong hydrogen-bonding interactions. Wavelet-based noise reduction effectively enhanced signal-to-noise ratio, reducing baseline standard deviation by over 90%. study introduces a novel noise-enhanced recognition model that integrates metrics improve detection sensitivity. The successfully uncovers subtle structural variations systems are typically masked conventional techniques, advancing materials analysis providing robust framework for future FTIR-based diagnostics material characterization.

Язык: Английский

Lignin defined ordered hard domains toward mechanically robust, long-term weather resistant bio-elastomer

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 144895 - 144895

Опубликована: Июнь 1, 2025

Язык: Английский