Packing effect on latex film formation and dissolution: A UV-to-visible study
Küçük Resim Yok
Tarih
2000
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Films with various thicknesses were formed from pyrene labeled poly (methyl methacrylate) (PMMA) high Tg latex particles, sterically stabilized by poly isobutylene. Annealing of films were performed above Tg at elevated temperatures up to 270 degree(s)C for 30 min time intervals. UV- Visible technique was used for monitoring of film formation and dissolution. Absorption of chloroform molecules into the annealed latex film was followed by diffusion of PMMA chains into solvent reservoir. Diffusion coefficients of PMMA chains were measured and found to be in between 2.6 x10- 9 cm 2 s-1 to 9.7 x 10-13 cm2 s -1 for the latex films in various thicknesses. It was observed that thicker films dissolved much faster than the thinner films.
Açıklama
Anahtar Kelimeler
Dissolution; Films; Latex Particles; Packing; Uv-Visible, Elevated Temperature; Film Formations; Latex Film Formations; Latex Particles; Packing Effects; Poly(Methyl Methacrylate) (Pmma); Time Interval; Uv-Visible; Chains; Diffusion; Dissolution; Esters; Films; Organic Solvents; Packing; Annealing; Film Growth; Latexes; Molecular Structure; Polymethyl Methacrylates; Thin Films; Ultraviolet Spectroscopy; Latexes; Thick Films; Film Thickness; Latex Film; Polyisobutylene; Pyrene
Kaynak
Proceedings of SPIE - The International Society for Optical Engineering
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
4129
