Molecular weight dependence of phase Behavior of PEO/P(EO-b-DMS) blends: Application of Sanchez-Lacombe lattice fluid theory


Autoria(s): Li HF; Jiang SC; Sun ZY; An LJ
Data(s)

2008

Resumo

Molecular weight dependence of phase separation behavior of the Poly (ethylene oxide) (PEO)/Poly(ethylene oxide-block-dimethylsiloxane) (P(EO-b-DMS)) blends was investigated by both experimental and theoretical methods. The cloud point curves of PEO/P(EO-b-DMS) blends were obtained by turbidity method. Based on Sanchez-Lacombe lattice fluid theory (SLLFT), the adjustable parameter, epsilon*(12)/k (quantifying the interaction energy between different components), was evaluated by fitting the experimental data in phase diagrams. To calculate the spinodals, binodals, and the volume changes of mixing for these blends, three modified combining rules of the scaling parameters for the block copolymer were introduced.

Identificador

http://ir.ciac.jl.cn/handle/322003/10283

http://www.irgrid.ac.cn/handle/1471x/147377

Idioma(s)

英语

Fonte

Li HF;Jiang SC;Sun ZY;An LJ.Molecular weight dependence of phase Behavior of PEO/P(EO-b-DMS) blends: Application of Sanchez-Lacombe lattice fluid theory,JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS ,2008,46(5 ):452-459

Palavras-Chave #SYMMETRIC DIBLOCK COPOLYMERS #STATISTICAL THERMODYNAMICS #POLYMER-SOLUTIONS #BLOCK-COPOLYMER #BINARY BLENDS #POLY(VINYL METHYL-ETHER) #POLYVINYL METHYL-ETHER) #HOMOPOLYMER BLENDS #PARAMETER SPACE #LIQUID-LIQUID
Tipo

期刊论文