Water structure and hydration of polymer network in PMEO2MA hydrogels

Piechocki, Krzysztof; Kozanecki, Marcin; Saramak, Jakub

doi:10.1016/j.polymer.2020.122974

Cited by 25 publications

(36 citation statements)

References 59 publications

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“…Thus, the second derivative method was used to decompose the IR spectra 29,47 . In Figure 4, the second derivative spectrum of pure water shows four bands at 3626, 3506, 3375, and 3219 cm −1 , respectively, which are similar to the data reported in the literature 48 . In comparison, the bands in the second derivative spectra of dry POXs are located differently and are separate from those of pure water.…”

Section: Resultssupporting

confidence: 69%

“…In the IR spectrum, the ν (OH) of water, which is sensitive to hydrogen bonds, is usually used to study the water structure in various systems 48,49 . The normalized IR spectra of POX/water systems with different water contents are presented in Figure S8.…”

Section: Resultsmentioning

confidence: 99%

“…In the IR spectrum, the ν(O H) of water, which is sensitive to hydrogen bonds, is usually used to study the water structure in various systems. 48,49 The normalized IR spectra of POX/water systems with different water contents are presented in Figure S8. In the spectra of the dry POXs, the bands assigned to the C H vibration in the side chains or the backbones of the polymers are located at 3700-2700 cm À1 and overlap with the ν(O H) of water.…”

Section: Hydration States Of Poxs Evaluated Using Atr-irmentioning

confidence: 99%

“…29,47 In Figure 4, the second derivative spectrum of pure water shows four bands at 3626, 3506, 3375, and 3219 cm À1 , respectively, which are similar to the data reported in the literature. 48 In comparison, the bands in the second derivative spectra of dry POXs are located differently and are separate from those of pure water. According to Piechocki's work, 48 in the poly [2-(2-methoxyethoxy)ethyl methacrylate] hydrogel/ water system, the more hydrogen bonds a water molecule formed with polymer chains or other water molecules, the lower the wavenumber of the ν(O H) band that was observed.…”

Section: Hydration States Of Poxs Evaluated Using Atr-irmentioning

confidence: 99%

“…48 In comparison, the bands in the second derivative spectra of dry POXs are located differently and are separate from those of pure water. According to Piechocki's work, 48 in the poly [2-(2-methoxyethoxy)ethyl methacrylate] hydrogel/ water system, the more hydrogen bonds a water molecule formed with polymer chains or other water molecules, the lower the wavenumber of the ν(O H) band that was observed. They assigned the band at 3650 cm À1 to the free O H and that at 3250 cm À1 to the ν(O H) of a water molecule that is hydrogen-bonded with four water molecules.…”

Section: Hydration States Of Poxs Evaluated Using Atr-irmentioning

confidence: 99%

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Effect of pendant groups on the blood compatibility and hydration states of poly(2‐oxazoline)s

Liu

Kobayashi

Nishimura

et al. 2021

Journal of Polymer Science

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Poly(2‐methyl‐2‐oxazoline) (PMeOx), poly(2‐ethyl‐2‐oxazoline) (PEtOx), poly(2‐n‐butyl‐2‐oxazoline) (PBuOx), and poly(2‐phenyl‐2‐oxazoline) (PPhOx) are selected as poly(2‐oxazoline) (POX) models to study the effect of pendant groups on their blood compatibility and hydration states. A comprehension of this can provide a perspective for understanding the biocompatibility of PMeOx and PEtOx in water‐polymer interactions and may inspire the development of novel blood‐compatible POX derivatives. The aforementioned four POXs are grafted onto glass substrates via photo‐grafting, and their blood compatibility is estimated via platelet adhesion and the degree of denaturation of the adsorbed fibrinogen. The hydration states of the POXs are investigated using differential scanning calorimetry and attenuated total reflection infrared spectroscopy. Intermediate water is found to be present in hydrated PMeOx and PEtOx, but is observed to be scarce in hydrated PBuOx and PPhOx. This could be the reason for the biocompatibility of PMeOx and PEtOx. The carbonyl groups in PMeOx and PEtOx can be fully hydrated. However, in PBuOx and PPhOx, water mainly exists as bulk water. The hydration of the carbonyl groups is hindered by the bulky side chains, and IW cannot be generated.

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Section: Resultssupporting

confidence: 69%

Section: Resultsmentioning

confidence: 99%

Section: Hydration States Of Poxs Evaluated Using Atr-irmentioning

confidence: 99%

Section: Hydration States Of Poxs Evaluated Using Atr-irmentioning

confidence: 99%

Section: Hydration States Of Poxs Evaluated Using Atr-irmentioning

confidence: 99%

See 3 more Smart Citations

Effect of pendant groups on the blood compatibility and hydration states of poly(2‐oxazoline)s

Liu

Kobayashi

Nishimura

et al. 2021

Journal of Polymer Science

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Self‐Assembly and In Situ Quaternization of Triblock Bottlebrush Block Copolymers via Organized Spontaneous Emulsification for Effective Loading of DNA

Wang

Liu

et al. 2023

Macromol. Rapid Commun.

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Microspheres bearing large pores are useful in the capture and separation of biomolecules. However, pore size is typically poorly controlled, leading to disordered porous structures with limited performances. Herein, ordered porous spheres with a layer of cations on the internal surface of the nanopores are facilely fabricated in a single step for effective loading of DNA bearing negative charges. Triblock bottlebrush copolymers (BBCPs), (polynorbornene‐g‐polystyrene)‐b‐(polynorbornene‐g‐polyethylene oxide)‐b‐(polynorbornene‐g‐bromoethane) (PNPS‐b‐PNPEO‐b‐PNBr), are designed and synthesized for fabrication of the positively charged porous spheres through self‐assembly and in situ quaternization during an organized spontaneous emulsification (OSE) process. Pore diameter as well as charge density increase with the increase of PNBr content, resulting in a significant increase of loading density from 4.79 to 22.5 ng µg−1 within the spheres. This work provides a general strategy for efficient loading and encapsulation of DNA, which may be extended to a variety of different areas for different real applications.

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Impact of the various buffer solutions on the temperature-responsive properties of POEGMA-grafted brush coatings

et al. 2022

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Water structure and hydration of polymer network in PMEO2MA hydrogels

Cited by 25 publications

References 59 publications

Effect of pendant groups on the blood compatibility and hydration states of poly(2‐oxazoline)s

Effect of pendant groups on the blood compatibility and hydration states of poly(2‐oxazoline)s

Self‐Assembly and In Situ Quaternization of Triblock Bottlebrush Block Copolymers via Organized Spontaneous Emulsification for Effective Loading of DNA

Impact of the various buffer solutions on the temperature-responsive properties of POEGMA-grafted brush coatings

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