Theory of chromatography of linear and cyclic polymers with functional groups

Горбунов, А.А.; Vakhrushev, Andrey V.

doi:10.1016/j.polymer.2004.07.074

Cited by 42 publications

(24 citation statements)

References 36 publications

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“…From the 1 H NMR spectrum, M n was determined as 13,100, which was greater than the value estimated by GPC. Since M n of the polymers with cyclic components is normally underestimated by GPC, 11 we have concluded that a high molecular weight poly [2]rotaxane 7 was obtained.…”

Section: Resultsmentioning

confidence: 88%

Synthesis of poly[2]rotaxane by Sonogashira polycondensation

Sasabe

Inomoto

Kihara

et al. 2007

J. Polym. Sci. A Polym. Chem.

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Section: Resultsmentioning

confidence: 88%

Synthesis of poly[2]rotaxane by Sonogashira polycondensation

Sasabe

Inomoto

Kihara

et al. 2007

J. Polym. Sci. A Polym. Chem.

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“…It measures the difference of the free energy of adsorption Dw (in RT units) between the functional end group and the repeat unit [21,32].…”

Section: Theoretical Considerationsmentioning

confidence: 99%

“…In order to save time in the optimization of chromatographic separations, one may try to simulate chromatograms using special software [21][22][23][24][25]. This works well even with highly complex polymers, provided that the parameters describing the column (chemical nature of the surface of the stationary phase, interstitial volume, pore volume and pore diameter), the nature of the polymer (repeat unit, end groups, architecture) and its behavior in a given mobile phase are known.…”

Section: Introductionmentioning

confidence: 99%

Retention of functional polymers in liquid adsorption chromatography: Effect of the end groups in PEGs and their methyl ethers in different mobile phases

Cuong

Trathnigg

2010

J of Separation Science

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It is shown that the end group parameter, which describes the influence of the end group on retention, can be determined in RP chromatography from two chromatograms of a nonfunctional and a monofunctional sample, if a sufficient number of peaks with the same number of repeat units in each sample can be reasonably resolved and identified. The same procedure can also be applied for pairs of di- and monofunctional polymers. End group parameters have been determined in three different mobile phases: acetonitrile-water, acetone-water and methanol-water of different compositions. The temperature dependence of the interaction parameter of the repeat unit and the end group parameter has been found to be different, which allows a fine-tuning of retention.

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“…Based on this theory, one may predict the chromatographic behaviour of polymers [7] and even simulate chromatograms of complex polymers [12][13][14][15], provided that these parameters are known with sufficient accuracy.…”

Section: The Interaction Parameter In Lcmentioning

confidence: 99%

Adsorption interaction parameter of polyethers in ternary mobile phases: The critical adsorption line

Cuong

Trathnigg

2010

J of Separation Science

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It is shown that in LC of polymers, the interaction parameter in ternary mobile phases can be described by a plane, which is determined by the dependencies in binary mobile phases. Instead of a critical adsorption point, critical conditions are observed along a straight line of composition between the two critical points in binary mobile phases. Consequently, a separation of block copolymers under critical conditions for one block by an adsorption mechanism for the other block can be achieved in ternary mobile phases of different compositions, which allows an adjustment of the retention of the adsorbing block.

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Theory of chromatography of linear and cyclic polymers with functional groups

Cited by 42 publications

References 36 publications

Synthesis of poly[2]rotaxane by Sonogashira polycondensation

Synthesis of poly[2]rotaxane by Sonogashira polycondensation

Retention of functional polymers in liquid adsorption chromatography: Effect of the end groups in PEGs and their methyl ethers in different mobile phases

Adsorption interaction parameter of polyethers in ternary mobile phases: The critical adsorption line

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