Dynamic light-scattering studies of the fractal aggregation of poly(methacrylic acid) and poly(ethylene glycol)

1990 ◽  
Vol 23 (20) ◽  
pp. 4404-4410 ◽  
Author(s):  
David J. Hemker ◽  
Curtis W. Frank
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Ethylene Glycol ◽  
Methacrylic Acid ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Reappearance of slow mode in mixtures of polyethylene glycol and poly(sodium methacrylate)

Soft Matter ◽  
2018 ◽  
Vol 14 (24) ◽  
pp. 5039-5047
Author(s):  
Ksenija Kogej ◽  
Jaka Štirn ◽  
Jurij Reščič
Keyword(s):  
Polyethylene Glycol ◽  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Ethylene Glycol ◽  
Slow Mode ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Scattering Signal ◽  
Sodium Methacrylate

After addition of poly(ethylene glycol) to a solution of poly(sodium methacrylate), the slow-mode dynamic light scattering signal reappears.

scholarly journals Nanogels obtained by gamma radiation induced polymerization

Polimery ◽  
2021 ◽  
Vol 66 (9) ◽  
pp. 451-458
Author(s):  
Nur Fathin Amirah Shafie ◽  
Mohd Yusof Hamzah ◽  
Roshafima Rasit Ali
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Zeta Potential ◽  
Ethylene Glycol ◽  
Gamma Radiation ◽  
Biomedical Applications ◽  
Poly Ethylene Glycol ◽  
Glycol Diacrylate ◽  
Radiation Induced ◽  
Poly Ethylene

The influence of 2-(dimethylamino)ethyl methacrylate (DMAEMA) concentration on the temperature sensitivity of nanogels based on N-isopropylacrylamide (NIPAAM), poly(vinylpyrrolidone) (PVP), poly(ethylene glycol) diacrylate (PEGDA) by gamma radiation induced polymerization was investigated. Dynamic light scattering (DLS) and zeta potential measurements were used to characterize the nanogels. Temperature has been found to cause the nanogel particles to swell and shirnkage, allowing controlled dosing of the drug contained in capsules. The developed nanogels are promising materials with great potential for biomedical applications.

Origin of the low-frequency plateau and the light-scattering slow mode in semidilute poly(ethylene glycol) solutions

Soft Matter ◽  
2019 ◽  
Vol 15 (12) ◽  
pp. 2666-2676 ◽  
Author(s):  
Martha Koziol ◽  
Karl Fischer ◽  
Sebastian Seiffert
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Ethylene Glycol ◽  
Autocorrelation Function ◽  
Phase Angle ◽  
Polymer Solutions ◽  
Low Frequency ◽  
Slow Mode ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

The low-frequency plateau often found in the rheological spectra of semidilute polymer solutions is shown to be an artifact due to imprecise phase-angle determination; furthermore, the slow mode in the dynamic light scattering autocorrelation function of such solutions is shown to result from minor fractions of 20–200 nm sized impurities.

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