Polymer Functionalization

Bultema, Lindsey A.; Huang, Xiaoli; Brauer, Daniel; Théato, Patrick

doi:10.1007/978-3-319-95987-0_2

Cited by 5 publications

(3 citation statements)

References 227 publications

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“…1 H NMR spectroscopy provided the information about the microstructure of purified ENR-50, ENR-g-PEA 0.5 , and ENR-g-PEA 1 (Figure 3. 13 C NMR spectra are given in Figure S1). For purified ENR-50, the 1 It is worth mentioning that the intensity of f-protons was increased for ENR-g-PEA 1 as compared to that for ENR-g-PEA 0.5 .…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Typically, a functional polymer can be achieved either by polymerizing monomers with the desired functional groups or by chemically modifying the polymeric backbone with structurally diverse molecules. The second category of “grafting-onto” technique is commonly preferred for linear polymers and is the easiest technique to conduct. − The characteristics of the modified product rely on the chemical functionalities introduced to the polymer backbone. For instance, polar functional groups are introduced in a nonpolar polymer backbone or vice versa for improved compatibility with the target substance.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of Polyetheramine-Grafted Epoxidized Natural Rubber and Its Role in Humidity Adhesive Sensors

Guchait

Ganguly

Sengupta

et al. 2022

ACS Sustainable Chem. Eng.

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The development of hydrophilic adhesives is critical for multifunctional applications ranging from wound healing patches to humidity sensors. With the advent of the internet of things, developing a sensor material that demonstrates flexibility in terms of its form factor is becoming a ubiquitous choice. Especially in the field of the humidity sensor, ceramic materials are leveraged. This causes impediments in terms of the form factor, while reports related to the development of flexible hydrophilic adhesive sensors from sustainable resources for such activity are less. Herein, we report the synthesis and characterization of a functional additive from a sustainable source that can be blended effectively in an adhesive formulation to impart hydrophilicity to the entire composition. Epoxidized natural rubber was selected as the main polymer backbone, while polyether amine was selected as the modifier. Various spectroscopic techniques probed the fidelity of modification, which indicated 8% grafting. A detailed rheological study was performed to decipher the structure of the functional additive at the molecular level in terms of various parameters like the plateau modulus, entanglement molecular weight, relaxation time, and diffusion coefficient of the functional additive. The functional additive was blended with a standard adhesive formulation and was tested for its hydrophilicity and adhesiveness. The functional additive showed a 284% increase in water absorption after 7 days and a 78% increase in water vapor uptake when blended with the adhesive formulation. The final composition was tested for its ability to act as a humidity sensor. The hydrophilic adhesive sensor was capable of reciprocating with variation in humidity. Such a finding can be readily extended to develop smart adhesive patches with end applications in bioelectronics.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis of Polyetheramine-Grafted Epoxidized Natural Rubber and Its Role in Humidity Adhesive Sensors

Guchait

Ganguly

Sengupta

et al. 2022

ACS Sustainable Chem. Eng.

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“…Postpolymerization modification (PPM), also known as polymer analogous reaction, is an attractive alternative to polymerization of functional monomers to obtain useful polymerbased materials with specific properties and topologies [1][2][3][4][5][6][7]. By chemically modifying a polymeric precursor after the polymer has been prepared, PPM allows for the synthesis of a diverse library of functional polymers from a single polymer precursor and avoids possible adverse side reactions that may occur with certain functional groups during polymerization.…”

Section: Introductionmentioning

confidence: 99%

Poly(norbornenyl azlactone) as a versatile platform for sequential double click postpolymerization modification

François

Nicolas

Forcher

et al. 2020

European Polymer Journal

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Multiscale simulation of plastic transformations: The case of base‐assisted dehydrochlorination of polyvinyl chloride

Ezendu,

Soyemi,

Szilvási

2024

AIChE Journal

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Plastic transformations are critical to ongoing recycling and upcycling efforts, but the complexity of the reactions makes it difficult to understand the effect of individual factors on reaction rates and product distributions experimentally. In this work, we report on a multiscale simulation framework for studying polymer transformations that incorporates affordable high‐level coupled cluster calculations combined with benchmarked density functional theory calculations, detailed conformer search, and lattice‐based kinetic Monte Carlo simulations to provide the temporal and spatial evolution of the polymer during transformations. Our framework can match experimentally observed reaction times within an order of magnitude without any parameter estimation in base‐assisted dehydrochlorination of polyvinyl chloride. We determine that the E2 reaction mechanism dominates the reaction and demonstrate that different structural defects can inhibit or promote directional polyene growth as well as affect the structure of the dehydrochlorination product.

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Polymer Functionalization

Cited by 5 publications

References 227 publications

Synthesis of Polyetheramine-Grafted Epoxidized Natural Rubber and Its Role in Humidity Adhesive Sensors

Synthesis of Polyetheramine-Grafted Epoxidized Natural Rubber and Its Role in Humidity Adhesive Sensors

Poly(norbornenyl azlactone) as a versatile platform for sequential double click postpolymerization modification

Multiscale simulation of plastic transformations: The case of base‐assisted dehydrochlorination of polyvinyl chloride

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