Enhancing covalent mechanochemistry in bulk polymers using electrospun ABA triblock copolymers

A. L. Black Ramirez; A. K. Schmitt; M. K. Mahanthappa; S. L. Craig

doi:10.1039/c4fd00001c

Enhancing covalent mechanochemistry in bulk polymers using electrospun ABA triblock copolymers

A. L. Black Ramirez, A. K. Schmitt, M. K. Mahanthappa, S. L. Craig

Chemical Engineering and Materials Science

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The mechanochemical activation of covalent bonds in bulk polymers is often characterized by low conversions. Here we report that the activation of gem-dibromocyclopropane (gDBC) mechanophores embedded in a poly(1,4-butadiene) (PB) is enhanced when a central gDBC-PB block is flanked by two polystyrene (PS) end blocks in an ABA-type triblock architecture. Electrospinning the PS-(gDBC)PB-PS leads to even greater activation in aligned fiber mats under tension.

Original language	English (US)
Pages (from-to)	337-344
Number of pages	8
Journal	Faraday Discussions
Volume	170
DOIs	https://doi.org/10.1039/c4fd00001c
State	Published - Dec 1 2014

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© The Royal Society of Chemistry 2014.

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abstract = "The mechanochemical activation of covalent bonds in bulk polymers is often characterized by low conversions. Here we report that the activation of gem-dibromocyclopropane (gDBC) mechanophores embedded in a poly(1,4-butadiene) (PB) is enhanced when a central gDBC-PB block is flanked by two polystyrene (PS) end blocks in an ABA-type triblock architecture. Electrospinning the PS-(gDBC)PB-PS leads to even greater activation in aligned fiber mats under tension.",

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AB - The mechanochemical activation of covalent bonds in bulk polymers is often characterized by low conversions. Here we report that the activation of gem-dibromocyclopropane (gDBC) mechanophores embedded in a poly(1,4-butadiene) (PB) is enhanced when a central gDBC-PB block is flanked by two polystyrene (PS) end blocks in an ABA-type triblock architecture. Electrospinning the PS-(gDBC)PB-PS leads to even greater activation in aligned fiber mats under tension.

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Enhancing covalent mechanochemistry in bulk polymers using electrospun ABA triblock copolymers

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