Coil-globule transition studies of sodium poly(styrene sulfonate) by dynamic light scattering

Ersin Serhatli, Müge Serhatli, Bahattin M. Baysal*, Frank E. Karasz

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: Dergiye katkıMakalebilirkişi

11 Atıf (Scopus)

Özet

The coil-globule transition behavior of sodium poly(styrene sulfonate) (NaPSS) (MW = 1.2 × 106 g/mol) in 4.17 M aqueous NaCl solution has been studied by dynamic light scattering. The polymer dimensions show a smooth and continuous contraction below the reference temperature (18°C). The hydrodynamic radius (Rh) of NaPSS in this system was reduced from 13.1 nm (18°C) to 9.1 nm at 10°C. At the latter temperature the polymer segment volume fraction was calculated to be 0.58. The contraction for this and other NaPSS samples investigated in this study is somewhat limited because under these high ionic strength conditions the polymer chains already contracted as a result of the screening effect of the ions.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)5439-5445
Sayfa sayısı7
DergiPolymer
Hacim43
Basın numarası20
DOI'lar
Yayın durumuYayınlandı - 12 Ağu 2002

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