Synthesis and characterization of some disulfonyl azides as potential crosslinking agents for textile fibers

Baker, Darren A.; East, G. C.; Mukhopadhyay, Samrat

doi:10.1002/1097-4628(20010207)79:6<1092::aid-app130>3.0.co;2-n

Cited by 32 publications

(23 citation statements)

References 24 publications

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“…Following our earlier study of the crosslinking of an acrylic fiber with disulfonyl azides (DSAs),16, 17 it was decided to attempt to crosslink PET by use of the thermal decomposition of DSAs. It seemed likely from the work done using SA functionalized dyes8–15 that a bifunctional analogue ought to be able to crosslink PET, especially if applied from an essentially anhydrous medium.…”

Section: Introductionmentioning

confidence: 99%

“…It seemed likely from the work done using SA functionalized dyes8–15 that a bifunctional analogue ought to be able to crosslink PET, especially if applied from an essentially anhydrous medium. Thus, a selection of DSAs that were synthesized earlier17 were applied under different conditions to investigate their potential for crosslinking PET. The physical and thermal properties of the resultant fibers were determined.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical and thermal properties of poly(ethylene terephthalate) fibers crosslinked with disulfonyl azides

Baker

East

Mukhopadhyay

2001

J of Applied Polymer Sci

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ABSTRACT:A novel method for the crosslinking of poly(ethylene terephthalate) fibers is described using 1,6-hexanedisulfonyl azide, 1,3-benzenedisulfonyl azide, and 2,6-naphthalenedisulfonyl azide. The azides are diffused into poly(ethylene terephthalate) fibers (Dacron) from perchloroethylene solution, and the fibers are heat treated to bring about decomposition of the sulfonyl azide and give rise to crosslinking. A study is made of the mechanical and thermal properties of the resultant fibers, which are changed considerably in comparison to the untreated fiber.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical and thermal properties of poly(ethylene terephthalate) fibers crosslinked with disulfonyl azides

Baker

East

Mukhopadhyay

2001

J of Applied Polymer Sci

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“…Crosslinking of bulk polymers is a common method to stabilize the shape and internal structure of polymer objects and, therefore, many methods have been reported on how to achieve well‐defined polymer networks . To obtain crosslinked systems, two strategies can be followed: crosslinking polymerization or the transformation of preformed polymers into polymer networks.…”

Section: Methodsmentioning

confidence: 99%

Malonic Acid Diazoesters for C−H Insertion Crosslinking (CHic) Reactions: A Versatile Method for the Generation of Tailor‐Made Surfaces

Kotrade¹,

Rühe²

2017

Angewandte Chemie

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A simple and versatile method for the modification of a broad spectrum of surfaces with thin polymer films through the thermally or photochemically induced generation of surface‐attached polymer networks is reported. The system is based on copolymers containing diazomalonate groups, which can be activated by heat or light. To this end, the copolymers are deposited from solution onto solid substrates by standard techniques of thin‐film deposition (spin coating, dip coating). Upon activation the diazomalonate group decomposes and forms a carbene, which induces C−H insertion crosslinking (CHic) reactions. In the course of this process network formation and covalent surface attachment occur at the same time. The crosslinking process proceeds very rapidly, especially when the carbenes generated in the activation process cannot undergo Wolff‐rearrangement. The presented system can be used for the generation of a wide range of polymer layers and microstructures on a broad spectrum of surfaces.

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“…The key to enhance the adhesion between the reinforcing fibers and the polymer matrix is to generate a well‐defined interface chemistry. Surface‐attachment and crosslinking of polymers is a common way to stabilize layers and many methods have been reported to generate well defined polymer networks . However, most methods used for the formation of bulk networks cannot easily be transferred to fiber geometries.…”

Section: Interface Modificationmentioning

confidence: 99%

Chemical Modification of Fiber‐Matrix Interfaces of Glass Fiber Reinforced Thermoplastics and Methods for Interface Characterization

et al. 2018

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Depreciation of natural resources leads to an increasing demand for sustainable materials. Fiber-reinforced plastics are known for combining low specific weight with high stiffness and toughness, making them the preferred material for the design of lightweight structures. However, one of the main problems with the use of this material is the limited recyclability of the material due to the necessity to split up the fiber and matrix composite into its constituents. Furthermore, the use recycled fibers require the use a recyclable sizing or alternatively, the cleaning, and re-application of new sizing to the fibers. The goal of this paper is to introduce a method to improve the mechanical properties of glass fiber reinforced thermoplastic polymers through a re-usable chemical modification of the fiber-matrix interface by using adhesion promoting coatings. The surface reactions in this approach are suitable for a wide spectrum of matrix systems. In a second part of the present paper, a characterization method for determination of the interface properties is suggested. For this purpose, micro tensile specimens are prepared and tested. The experiments are evaluated numerically using a finite element simulation based on 1:1 models of the specimens in conjunction with reverse engineering.

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Synthesis and characterization of some disulfonyl azides as potential crosslinking agents for textile fibers

Cited by 32 publications

References 24 publications

Mechanical and thermal properties of poly(ethylene terephthalate) fibers crosslinked with disulfonyl azides

Mechanical and thermal properties of poly(ethylene terephthalate) fibers crosslinked with disulfonyl azides

Malonic Acid Diazoesters for C−H Insertion Crosslinking (CHic) Reactions: A Versatile Method for the Generation of Tailor‐Made Surfaces

Chemical Modification of Fiber‐Matrix Interfaces of Glass Fiber Reinforced Thermoplastics and Methods for Interface Characterization

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