Prediction of Interfacial Interactions between Polymer Layers

Варваренко, С. М.; Samaryk, Volodymyr; Носова, Н. Г.; Puzko, Nataliia; Тарас, Р. С.; Tarnavchyk, Ihor; Voronov, Аndriy; Kohut, Ananiy; Voronov, Stanislav

doi:10.1002/masy.201000037

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…However, the most robust modifications are based on any type of grafting procedure, where a functional polymer is attached to the polymer substrate surface by chemical bonding. There are two ways of grafting on polymer surface: the grafting-from [ 22 , 23 , 24 , 25 , 26 , 27 , 28 ] and the grafting-to procedures [ 29 , 30 , 31 ]. The first step of the grafting-from procedure is the chemical bonding of a precursor molecule on the polymer surface.…”

Section: Introductionmentioning

confidence: 99%

Efficient Approach for Direct Robust Surface Grafting of Polyethyleneimine onto a Polyester Surface during Moulding

Zimmermann,

Frohs,

Wiesing

et al. 2024

Polymers

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This paper uses a very effective way for surface modification of thermoplastic polymers during moulding. It is based on a grafting reaction between a thin layer of a functional polymer, deposited on a substrate in advance, and a polymer melt. In this paper, a glycol-modified polyethylene terephthalate (PETG) that was brought in contact with a polyethyleneimine layer during fused filament fabrication is investigated. The focus of this paper is the investigation of the reaction product. Grafting was realised by the formation of stable amide bonds by amidation of ester groups in the main chain of a PETG. XPS investigations revealed that the conversion of amino groups was very high, the distribution was even, and the quantity of amino groups per polyester surface area was still very high. The surface properties of the produced polyester part were mainly characterised by polyethyleneimine. The grafting was able to resist several cycles of extraction in alkaline solutions. The stability was only limited by saponification of the polyester. The degree of surface modification was dependent on the molar mass of polyethyleneimine. This could be rationalised, because grafting only occurred with the one polyethyleneimine molecule that is in close vicinity to the polyester surface when both components come in contact. Fused deposition modelling was chosen as the model process with control over each processing step. However, any other moulding process may be applied, particularly injection moulding for mass production.

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Section: Introductionmentioning

confidence: 99%

Efficient Approach for Direct Robust Surface Grafting of Polyethyleneimine onto a Polyester Surface during Moulding

Zimmermann,

Frohs,

Wiesing

et al. 2024

Polymers

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“…[9][10][11] These substances can serve as crosslinkers and initiators for polymer blends enabling the formation of an item from different polymers. 9,12,13 Epoxy 11,14,15 and phenol-formaldehyde resins 16,17 are most often used to prepare oligomers with a peroxide group in their structure. Application of these resins stems from the fact that they contain either a reactive epoxy group (in the case of epoxy resins) or a phenolic hydroxyl group (while using phenol-formaldehyde resins) in their structure.…”

Section: Introductionmentioning

confidence: 99%

Initiating and Cross-Linking Properties of Urea-Formaldehyde Oligomers with Peroxide Groups

Astakhova¹,

Jr.²,

Kohut³

2022

ChChT

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The initiating properties of urea-formaldehyde oligomers with peroxide groups have been studied. For comparison, the initiating activity has been examined for the polymerization of styrene by the peroxide oligomer based on the epoxy oligomer Epidian-5 and tert-butyl hydroperoxide. The cross-linking properties of the urea-formaldehyde oligomers with peroxide groups have been investigated using unsaturated oligoesters as a model. The chemistry of the formation of the substances with a cross-linked structure has been studied using IR spectroscopy.

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