Size-exclusion chromatography of ultrahigh molecular weight methylcellulose ethers and hydroxypropyl methylcellulose ethers for reliable molecular weight distribution characterization
Carbohydrate Polymers（2016）
Abstract
•A protocol was developed for application of SEC-MALLS to water soluble MC and HPMC.•Use of the protocol produced accurate MWDs for all polymers examined.•A comparison of MALLS-based data to RALS/DV-based data is reported.•Strategies to defeat late elution of high MW materials were developed.
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Key words
Methylcellulose ethers,Hydroxypropyl methylcellulose ethers,Size-exclusion chromatography,Ultrahigh molecular weight materials
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