Influence of Architecture on the Interfacial Properties of Polymers: Linear Chains, Stars, and Microgels

Bochenek, Steffen; Rudov, Andrey A.; Sassmann, Tim; Potemkin, Igor I.; Richtering, Walter

doi:10.1021/acs.langmuir.3c02470

Cited by 7 publications

(2 citation statements)

References 86 publications

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“…Previous characterization of these combs using gel permeation chromatography (GPC) and proton nuclear magnetic resonance ( 1 H NMR) provided insight into the Previous characterization of these combs using gel permeation chromatography (GPC) and proton nuclear magnetic resonance ( 1 H NMR) provided insight into the molecular weight and oligomeric composition of the product. The average molecular weight (M n ) with 1:1 molar equivalents of BDT to MeO-PEG 5 -propargyl, calculated by 1 H NMR experiments based on the ratio of the end groups to the repeating units, was significantly higher than that calculated via GPC, suggesting that chain cyclization had occurred [9]. This preliminary estimation, however, requires further analysis to confirm the microstructure of the unsaturated product.…”

Section: Esi-ms Analysismentioning

confidence: 88%

“…The utility of a polymeric product strongly depends on its macroscopic properties, which are largely determined by the polymer’s chemical characteristics, including its elemental composition, overall size (molecular weight), and molecular architecture. Several studies have documented that similar polymer sizes and chemistries but differing macromolecular architectures (linear, cyclic, branched, star, crosslinked) can result in unique physical [ 1 ], mechanical [ 2 , 3 , 4 ], electrical [ 5 ], and optical properties [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

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Elucidation of Dithiol-yne Comb Polymer Architectures by Tandem Mass Spectrometry and Ion Mobility Techniques

Williams-Pavlantos,

Mokarizadeh,

Curole

et al. 2024

Polymers

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Polymers have a wide range of applications depending on their composition, size, and architecture. Varying any of these three characteristics can greatly impact the resulting chemical, physical, and mechanical properties. While many techniques are available to determine polymer composition and size, determining the exact polymer architecture is more challenging. Herein, tandem mass spectrometry (MS/MS) and ion mobility mass spectrometry (IM-MS) methods are utilized to derive crucial architectural information about dithiol-yne comb polymers. Based on their unique fragmentation products and IM drift times, dithiol-yne oligomers with distinct architectures were successfully differentiated and characterized. Additionally, experimental collision cross-sections (Ω) derived via IM-MS were compared to theoretically extracted Ω values from molecular dynamics simulated structures to deduce the architectural motif of these comb oligomers. Overall, this work demonstrates the benefits of combining various mass spectrometry techniques in order to gain a complete understanding of a complex polymer mixture.

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Section: Esi-ms Analysismentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Elucidation of Dithiol-yne Comb Polymer Architectures by Tandem Mass Spectrometry and Ion Mobility Techniques

Williams-Pavlantos,

Mokarizadeh,

Curole

et al. 2024

Polymers

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Computer Simulations of Responsive Nanogels at Lipid Membrane

Sorokina,

Gumerov,

Noguchi

et al. 2024

Macromol. Rapid Commun.

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The swelling and collapse of responsive nanogels on a planar lipid bilayer are studied by means of mesoscopic computer simulations. The effects of molecular weight, cross‐linking density, and adhesion strength are examined. The conditions for collapse‐mediated engulfing by the bilayer are found. In particular, the results show that at low hydrophobicity level the increase in the nanogel softness decreases the engulfing rate. On the contrary, for stronger hydrophobicity level the trend changes to the opposite one. At the same time, when the cross‐linking density is too low or the adhesion strength is too high the nanogel deformation at the membrane suppresses the engulfing regardless of the network swelling ratio. Finally, for comparative reasons, the behavior of the nanogels is also studied at the solid surface. These results may be useful in the design of soft particles capable of tuning of their elasticity and porosity for successful intracellular drug delivery.

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Metal-free ring-opening polymerization for the synthesis of biocompatible star-shaped block copolymers with controllable architecture

Chueasupcharoen,

Meepowpan,

Manokruang

et al. 2024

European Polymer Journal

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Influence of Architecture on the Interfacial Properties of Polymers: Linear Chains, Stars, and Microgels

Cited by 7 publications

References 86 publications

Elucidation of Dithiol-yne Comb Polymer Architectures by Tandem Mass Spectrometry and Ion Mobility Techniques

Elucidation of Dithiol-yne Comb Polymer Architectures by Tandem Mass Spectrometry and Ion Mobility Techniques

Computer Simulations of Responsive Nanogels at Lipid Membrane

Metal-free ring-opening polymerization for the synthesis of biocompatible star-shaped block copolymers with controllable architecture

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