TY - JOUR
T1 - Kinetics of polymer adsorption measured in situ at the solid-liquid interface
T2 - Utility of the infrared total internal reflection method
AU - Kuzmenka, Daniel J.
AU - Granick, Steve
N1 - Funding Information:
We are indebted to Dr J. Van Alsten for writing computer programs, and to the IBM Materials and Processing Program for donation of a spectrophotometer. This work was supported by the National Science Foundation Materials
PY - 1988
Y1 - 1988
N2 - The method of infrared spectroscopy in attenuated total reflection (IR-ATR) has been used to study kinetics of polymethylmethacrylate (PMMA) adsorption from dilute carbon tetrachloride solution onto a germanium prism at 27.0°C. By using a combination of deuterated and protio PMMA, it was possible to monitor the initial buildup of the adsorbed layer of one polymer species, followed by the time-dependent displacement of this species when the ambient polymer solution was changed. Data are presented for the displacement of adsorbed deuterated polymer of molar mass 57,000 g by protio polymer of molar mass 400,000 g, and for the displacement of adsorbed protio polymer of molar mass 64,000 by deuterated polymer of molar mass 57,000 g. Although it was not possible to repeat experiments quantitatively, the qualitative conclusion is that in both situations PMMA of molecular weight ca 60,000 g mol-1 displayed a residence time on the germanium surface of at least several hours. It was possible by this method to measure the kinetic exchange that underlay an overall equilibrium amount of polymer adsorbed.
AB - The method of infrared spectroscopy in attenuated total reflection (IR-ATR) has been used to study kinetics of polymethylmethacrylate (PMMA) adsorption from dilute carbon tetrachloride solution onto a germanium prism at 27.0°C. By using a combination of deuterated and protio PMMA, it was possible to monitor the initial buildup of the adsorbed layer of one polymer species, followed by the time-dependent displacement of this species when the ambient polymer solution was changed. Data are presented for the displacement of adsorbed deuterated polymer of molar mass 57,000 g by protio polymer of molar mass 400,000 g, and for the displacement of adsorbed protio polymer of molar mass 64,000 by deuterated polymer of molar mass 57,000 g. Although it was not possible to repeat experiments quantitatively, the qualitative conclusion is that in both situations PMMA of molecular weight ca 60,000 g mol-1 displayed a residence time on the germanium surface of at least several hours. It was possible by this method to measure the kinetic exchange that underlay an overall equilibrium amount of polymer adsorbed.
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U2 - 10.1016/0166-6622(88)80185-9
DO - 10.1016/0166-6622(88)80185-9
M3 - Article
AN - SCOPUS:0023342569
SN - 0166-6622
VL - 31
SP - 105
EP - 116
JO - Colloids and Surfaces
JF - Colloids and Surfaces
IS - C
ER -