Control of Fluoropolymer Crystallinity for Flexible, Transparent Optical Thin Films with Low Refractive Indexes.

ABSTRACT: Fluoropolymers possess among the lowest indexes of refraction for dense, continuous materials, but their crystallinity typically leads to light scattering and haze. In this work, we studied poly(1H,1H,2H,2H-perfluorodecyl acrylate) (pPFDA) as a low-index fluoropolymer and successfully suppressed its crystallization while preserving its desirable low index of refraction (1.36 at 633 nm wavelength) and hydrophobicity (water contact angle of 122°). This was achieved through copolymerization between the hydrophobic 1H,1H,2H,2H-perfluorodecyl acrylate (PFDA) and N-vinylpyrrolidone (NVP) using initiated chemical vapor deposition (iCVD). The resulting copolymer p(PFDA-co-VP) film was smooth (roughness <2 nm), highly transparent

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC11823608 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature