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Convenient characterization of polymers grafted on cellulose nanocrystals via SI-ATRP without chain cleavage

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Industry: Polymers
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Instrument: Vasco

Industry: Polymers

DOI: https://doi.org/10.1016/j.carbpol.2018.07.060

Keywords: Cellulose nanocrystals, SI-ATRP, DLS, DSC, TGA, Polystyrene

Cleaving is usually required to characterize the molecular weight of grafted polymers on substrates. Here, we report on a technique to estimate the molecular weight of grafted polystyrene (PS) (Mngrafted PS) in PS-grafted cellulose nanocrystals (PS-g-CNCs) without chain cleavage. PS-g-CNCs were prepared from brominated CNC (CNC-Br) by Surface-Initiated Atom Transfer Radical Polymerization (SI-ATRP) in the presence of sacrificial initiators. (386 characters)
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