Reversible film formation from nano-sized PNIPAM particles below glass transition

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Tarih

2007-01

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Springer-Verlag

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Araştırma projeleri

Organizasyon Birimleri

Dergi sayısı

Özet

Reversible film formation process from nano-sized Poly(N-isopropylacrylamide) (PNIPAM) microgel particles were studied during heating-cooling cycles at various rates. Photon transmission technique was used and transmitted photon intensity I (tr) was monitored during heating-cooling cycles. The increase and decrease in I (tr) during heating and cooling was explained with the void closure and void reconstruction processes, and the corresponding activation energies were measured. It was observed that PNIPAM microgels required less energy during reconstruction of voids than their closure.

Açıklama

Anahtar Kelimeler

Film formation, Nanoparticles, Poly (N-isopropylacrylamide), Microgels, N-isopropylacrylamide gels, Volume phase-transition, T latex-particles, Photon transmission, Molecular-weight, Poly(n-isopropylacrylamide) microgels, Energy-transfer, Polystyrene, Dispersion, Fracture, Activation energy, Film growth, Glass transition, Thermal cycling, Glass, Chemical analysis, Cooling, Heating, Mathematical computing, Nanotechnology, Phase transition, Photon, Polymerization, Priority journal, Spectrometry, Spectrophotometry, Temperature sensitivity, Ultraviolet radiation, Transmitted photon intensity, Gels

Kaynak

Colloid and Polymer Science

WoS Q Değeri

Q3

Scopus Q Değeri

Q2

Cilt

285

Sayı

4

Künye

Uğur, Ş., Elaissari, A., Yargı, Ö. & Pekcan, M. Ö. (2007). Reversible film formation from nano-sized PNIPAM particles below glass transition. Colloid and Polymer Science, 285(4), 423-430. doi:10.1007/s00396-006-1584-6