DIN 55672-2-2008 凝胶渗透色谱法(GPC).第2部分:用N,N-二甲基乙酰胺(DMAC)作洗脱溶剂
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【英文标准名称】:Gelpermeationchromatography(GPC)-Part2:N,N-Dimethylacetamide(DMAC)aselutionsolvent
【原文标准名称】:凝胶渗透色谱法(GPC).第2部分:用N,N-二甲基乙酰胺(DMAC)作洗脱溶剂
【标准号】:DIN55672-2-2008
【标准状态】:现行
【国别】:德国
【发布日期】:2008-06
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:校正;化学分析和试验;色谱法;覆层材料;覆层;数据采集;定义;含量测定;二甲基乙酰胺;洗脱能力;凝胶渗透色谱法;GPC;仪器;试验;液相色谱法;测量;测量技术;摩尔质量;涂料;渗透;塑料;聚合物;试样制备;试验设备;试验报告;测试
【英文主题词】:Calibration;Chemicalanalysisandtesting;Chromatography;Coatingmaterials;Coatings;Dataacquisition;Definition;Definitions;Determinationofcontent;Dimethylacetamide;Eluatability;Gelpermeationchromatography;GPC;Instruments;Investigations;Liquidchromatography;Measurement;Measuringtechniques;Molarmass;Paints;Permeation;Plastics;Polymers;Specimenpreparation;Testequipment;Testreports;Testing
【摘要】:Thisstandarddescribesthedeterminationofthemolecularweightdistribution,number-averagemolecularweightMrandweight-averagemolecularweightMwofpolymersthataresolubleinDMAC(N,N-dimethylacetamide)bygelpermeationchromatography(GPC).Itispossiblethat,inspiteofthegoodrepeatabilityofthechromatogramsobtained,thismethodcannotbeusedwithcertainpolymertypesbecauseofspecificinteractions(e.g.adsorption)withinthesample/eluent/-columnsystem.Themethodisnotanabsoluteoneandrequirescalibrationwithcommerciallyavailableunbranchedpolymethylmethacrylatestandardsthathavebeencharacterizedbyindependentabsolutemethods.Theresultsforsamplesofpolymersotherthanpolymethylmethacrylatearethereforeonlycomparablewithingroupsofsamplesofthesametype.TheconditionsspecifiedinthisstandardarenotsuitablefortheGPCanalysisofpolymersampleswithMwvaluesgreaterthan10~6g/mol(seeAnnexC).Nocorrectionmethods(e.g.fortheeliminationofpeakbroadening)areincludedinthisstandard.Ifabsolutemolecularweightvaluesarerequired,anabsolutemethod(e.g.membraneosmometryforMnorlightscatteringforMw)shallbeused.
【中国标准分类号】:G63
【国际标准分类号】:71_040_50
【页数】:28P.;A4
【正文语种】:英语
【原文标准名称】:凝胶渗透色谱法(GPC).第2部分:用N,N-二甲基乙酰胺(DMAC)作洗脱溶剂
【标准号】:DIN55672-2-2008
【标准状态】:现行
【国别】:德国
【发布日期】:2008-06
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:校正;化学分析和试验;色谱法;覆层材料;覆层;数据采集;定义;含量测定;二甲基乙酰胺;洗脱能力;凝胶渗透色谱法;GPC;仪器;试验;液相色谱法;测量;测量技术;摩尔质量;涂料;渗透;塑料;聚合物;试样制备;试验设备;试验报告;测试
【英文主题词】:Calibration;Chemicalanalysisandtesting;Chromatography;Coatingmaterials;Coatings;Dataacquisition;Definition;Definitions;Determinationofcontent;Dimethylacetamide;Eluatability;Gelpermeationchromatography;GPC;Instruments;Investigations;Liquidchromatography;Measurement;Measuringtechniques;Molarmass;Paints;Permeation;Plastics;Polymers;Specimenpreparation;Testequipment;Testreports;Testing
【摘要】:Thisstandarddescribesthedeterminationofthemolecularweightdistribution,number-averagemolecularweightMrandweight-averagemolecularweightMwofpolymersthataresolubleinDMAC(N,N-dimethylacetamide)bygelpermeationchromatography(GPC).Itispossiblethat,inspiteofthegoodrepeatabilityofthechromatogramsobtained,thismethodcannotbeusedwithcertainpolymertypesbecauseofspecificinteractions(e.g.adsorption)withinthesample/eluent/-columnsystem.Themethodisnotanabsoluteoneandrequirescalibrationwithcommerciallyavailableunbranchedpolymethylmethacrylatestandardsthathavebeencharacterizedbyindependentabsolutemethods.Theresultsforsamplesofpolymersotherthanpolymethylmethacrylatearethereforeonlycomparablewithingroupsofsamplesofthesametype.TheconditionsspecifiedinthisstandardarenotsuitablefortheGPCanalysisofpolymersampleswithMwvaluesgreaterthan10~6g/mol(seeAnnexC).Nocorrectionmethods(e.g.fortheeliminationofpeakbroadening)areincludedinthisstandard.Ifabsolutemolecularweightvaluesarerequired,anabsolutemethod(e.g.membraneosmometryforMnorlightscatteringforMw)shallbeused.
【中国标准分类号】:G63
【国际标准分类号】:71_040_50
【页数】:28P.;A4
【正文语种】:英语
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