Amphiphilic macromolecular nanostructure materials derived from 5-(octanoate methyl)bicyclo[2.2.1]hept-2-ene and 5-(phthalimide methyl)bicyclo[2.2.1]hept-2-ene via ring-opening metathesis copolymerization

Liaw, Der‐Jang; Wang, Kun‐Li; Chen, Tsang-Pin; Lee, Kueir‐Rarn; Lai, Juin‐Yih

doi:10.1016/j.polymer.2007.04.034

Cited by 14 publications

(1 citation statement)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Their emission peaks (with intensity I e ) are broad featureless spectral peaks centered at 445-475 nm. Hence, the I e /I m ratio has often been used as an indicator of the degree of interaction between fluorophores (26)(27)(28). For hydrophobically associating polymers, the I e /I m ratio provides a measure to characterize the association degree of hydrophobic segments in the polymer chains and the microviscosity of hydrophobic microdomains.…”

Section: Effect Of Polymer Concentration On Associations In Aqueous Smentioning

confidence: 99%

Thickening and Associating Behavior in Aqueous Solutions of a Terpolymer with Poly(ethylene oxide) Side Chains

Zhong

Cai

Rao

2012

Journal of Macromolecular Science, Part A

View full text Add to dashboard Cite

A water-soluble terpolymer (PAVA) was synthesized by aqueous free radical copolymerization technique using acrylamide(AM), sodium 2-acrylamido-2-methylpropane-sulphonate (NaAMPS) and a macromonomer: p-vinylbenzyl-terminated octylphenoxy poly(ethylene oxide) (VPEO, degree of polymerization: 10). The remarkable intermolecular hydrophobic associations were formed in water and a brine solution for this polymer, which resulted in a good thickening effect, resistance to salt and salt-thickening. The hydrophobically associating microstructures of PAVA in aqueous solutions were measured by the fluorescent probe and scanning electron microscope. As polymer concentration was increased in water and brine solutions, the associating strength and non-polarity of hydrophobic microdomains increased remarkably. However, at the polymer concentrations higher than 0.20 g/dL, the non-polarity of hydrophobic microdomains tended to remain constant, and the I 1 /I 3 value changed slightly in 0.5 g/dL NaCl. The continuous associating structures were formed by the expanded polymer chains in brine solutions, as well as in water. As the NaCl concentration increased, the non-polarity of associating microstructures increased slowly, but the compact degree of these microstructures increased.

show abstract

Section: Effect Of Polymer Concentration On Associations In Aqueous Smentioning

confidence: 99%