Separation of complex branched polymers by size-exclusion chromatography probed with multiple detection
Size-exclusion chromatography (SEC) separates polymers by hydrodynamic volume (the universal calibration principle). Molecular weights can be determined using viscometry (relying on universal calibration) and light scattering (independent of universal calibration). In the case of complex branched po...
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| Veröffentlicht in: | Journal of Chromatography A 2008-05, Vol.1190 (1), p.215-223 |
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| container_title | Journal of Chromatography A |
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| creator | Gaborieau, Marianne Nicolas, Julien Save, Maud Charleux, Bernadette Vairon, Jean-Pierre Gilbert, Robert G. Castignolles, Patrice |
| description | Size-exclusion chromatography (SEC) separates polymers by hydrodynamic volume (the universal calibration principle). Molecular weights can be determined using viscometry (relying on universal calibration) and light scattering (independent of universal calibration). In the case of complex branched polyacrylates with tetrahydrofuran as eluent, universal calibration is valid, although the separation in term of molecular weight is incomplete: a given elution slice contains a range of molecular weights, described in terms of a ‘local polydispersity’. The local polydispersity index decreases when the number of branches per chain increases and complete separation is reached for highly branched chains. |
| doi_str_mv | 10.1016/j.chroma.2008.03.031 |
| format | Article |
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Molecular weights can be determined using viscometry (relying on universal calibration) and light scattering (independent of universal calibration). In the case of complex branched polyacrylates with tetrahydrofuran as eluent, universal calibration is valid, although the separation in term of molecular weight is incomplete: a given elution slice contains a range of molecular weights, described in terms of a ‘local polydispersity’. 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Molecular weights can be determined using viscometry (relying on universal calibration) and light scattering (independent of universal calibration). In the case of complex branched polyacrylates with tetrahydrofuran as eluent, universal calibration is valid, although the separation in term of molecular weight is incomplete: a given elution slice contains a range of molecular weights, described in terms of a ‘local polydispersity’. The local polydispersity index decreases when the number of branches per chain increases and complete separation is reached for highly branched chains.</description><subject>Applied sciences</subject><subject>Chemical Sciences</subject><subject>Chromatography, Gel - methods</subject><subject>Complex branched polymer</subject><subject>Exact sciences and technology</subject><subject>Hydrodynamic volume</subject><subject>Molecular Weight</subject><subject>Multiple-detection size-exclusion chromatography (SEC)</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Polyacrylate</subject><subject>Polymers</subject><subject>Polymers - isolation & purification</subject><subject>Properties and characterization</subject><subject>Separation</subject><subject>Structure, morphology and analysis</subject><issn>0021-9673</issn><issn>1873-3778</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kUFr3DAQhUVpaTbb_oPS-tJCD96OJFuSL4EQmqawkEOSs5Blaa3FXrmSnWbz6yvjJbkVBgmGb94M7yH0CcMGA2Y_9hvdBt-rDQEQG6Cp8Bu0woLTnHIu3qIVAMF5xTg9Q-cx7gEwB07eozMsKBekLFdod2cGFdTo_CHzNtO-HzrzlNVBHXRrmmzw3bE3IWb1MYvu2eTmSXdTnPFl_eh3QQ3tMRuCr9PAXze2WT91o0tCWWNGo2fxD-idVV00H0__Gj1c_7y_usm3t79-X11uc11UxZgLBYpwXltCeVlYsNQqzcqaccsJqwgrDIFSN9QWuLZ1pQijpGo0CBCFbjBdo--Lbqs6OQTXq3CUXjl5c7mVcw9wyagA-jiz3xY2nf5nMnGUvYvadJ06GD9FySoMQpAigcUC6uBjDMa-KGOQcxhyLxc35ByGBJpq1v980p_q3jSvQyf3E_D1BKioVWdn01184QhQYJDeNfqycFZ5qXYhMQ93BDBNywSrSpKIi4UwydtHZ4KM2pmDNo0LKQDZePf_W_8BuYGz3g</recordid><startdate>20080509</startdate><enddate>20080509</enddate><creator>Gaborieau, Marianne</creator><creator>Nicolas, Julien</creator><creator>Save, Maud</creator><creator>Charleux, Bernadette</creator><creator>Vairon, Jean-Pierre</creator><creator>Gilbert, Robert G.</creator><creator>Castignolles, Patrice</creator><general>Elsevier B.V</general><general>Amsterdam; 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| source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
| subjects | Applied sciences Chemical Sciences Chromatography, Gel - methods Complex branched polymer Exact sciences and technology Hydrodynamic volume Molecular Weight Multiple-detection size-exclusion chromatography (SEC) Organic polymers Physicochemistry of polymers Polyacrylate Polymers Polymers - isolation & purification Properties and characterization Separation Structure, morphology and analysis |
| title | Separation of complex branched polymers by size-exclusion chromatography probed with multiple detection |
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