Multi-angle light scattering and viscometric detection for polymer characterization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46504711%3A_____%2F06%3A%230000136" target="_blank" >RIV/46504711:_____/06:#0000136 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Multi-angle light scattering and viscometric detection for polymer characterization

Popis výsledku v původním jazyce

Multi-angle light scattering (MALS) photometers are becoming common detectors in size exclusion (SEC) chromatography. They effectively solve the crucial problem of SEC, i.e. the column calibration. It has become a common practice that SEC calibration obtained by polystyrene (or other) standards is generally applied to other polymer samples. This practice often results in generation of completely misleading results. The paper shows that in case of a MALS detector the true molar mass is measured directlywithout need for standards or parameters of universal calibration. Since the molar mass is measured independently of SEC separation, the results are significantly less sensitive to instrumental parameters such a flow rate, temperature, injected mass or column performance. Another advantage of MALS detector is possibility to evaluate directly the quality of SEC separation and reveal undesirable interactions of polymer with column packing.

Název v anglickém jazyce

Multi-angle light scattering and viscometric detection for polymer characterization

Popis výsledku anglicky

Multi-angle light scattering (MALS) photometers are becoming common detectors in size exclusion (SEC) chromatography. They effectively solve the crucial problem of SEC, i.e. the column calibration. It has become a common practice that SEC calibration obtained by polystyrene (or other) standards is generally applied to other polymer samples. This practice often results in generation of completely misleading results. The paper shows that in case of a MALS detector the true molar mass is measured directlywithout need for standards or parameters of universal calibration. Since the molar mass is measured independently of SEC separation, the results are significantly less sensitive to instrumental parameters such a flow rate, temperature, injected mass or column performance. Another advantage of MALS detector is possibility to evaluate directly the quality of SEC separation and reveal undesirable interactions of polymer with column packing.

Druh

D - Stať ve sborníku

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

<a href="/cs/project/FT-TA2%2F006" target="_blank" >FT-TA2/006: *Nové nátěrové hmoty pro vybrané stavební technologie.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Advanced Polymeric Material (APM-2006)

ISBN

80-968433-3-8

ISSN

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e-ISSN

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Počet stran výsledku

3

Strana od-do

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Název nakladatele

SUZA

Místo vydání

Bratislava

Místo konání akce

Bratislava

Datum konání akce

11. 6. 2006

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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