Journal article
Effect of Grafting Density and Backbone Branching on Crystallization of Poly(ethylene oxide)-Bearing Star Bottlebrushes
Polymer (Guilford), v 345, 129588
Feb 2026
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Abstract
Crystallization of molecular bottlebrushes has recently received increasing attention. In this work, a series of 3-arm star molecular bottlebrush (sMBB) polymers with varying grafting densities, ranging from 18% to 88%, were synthesized using a copper(I)-catalyzed azide-alkyne cycloaddition reaction. The non-isothermal and isothermal crystallization of these sMBBs was investigated using differential scanning calorimetry (DSC) and polarized light microscopy (PLM). We specifically focused on the effect of grafting density on the sMBB crystallization behavior. The Hoffman-Lauritzen model was employed to analyze the polymer crystallization kinetics. Furthermore, the sMBBs were compared with linear molecular bottlebrushes (lMBBs) with similar grafting densities. The direct comparison between star and linear bottlebrush crystallization reveals the independent effects of grafting density and backbone architecture.
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•PEO star bottlebrush polymers are synthesized by click grafting to.•PEO star brushes crystallize differently compared to linear PEO.•PEO star brushes crystallization depends on grafting density and architecture.
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Details
- Title
- Effect of Grafting Density and Backbone Branching on Crystallization of Poly(ethylene oxide)-Bearing Star Bottlebrushes
- Creators
- Carl T. Furner - Drexel UniversityJeffrey T. Wilk - Drexel UniversityMichael T. Kelly - University of Tennessee at KnoxvilleEthan W. Kent - University of Tennessee at KnoxvilleBin Zhao - University of Tennessee at KnoxvilleChristopher Y. Li (Corresponding Author) - Drexel University
- Publication Details
- Polymer (Guilford), v 345, 129588
- Publisher
- Elsevier
- Number of pages
- 13
- Grant note
- National Science Foundation (NSF): DMR-2513217, 2104968 NSF: DMR-2004564, 2412257
C.Y.L. thanks the National Science Foundation (NSF) for the support (DMR-2513217 and-2104968) . B.Z. thanks NSF for the support (DMR-2004564 and -2412257) .
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:001674337600001
- Other Identifier
- 991022155350104721