Ring opening metathesispolymerisation of emulsion templated dicyclopentadiene giving open porous materials with excellent mechanical properties

Kovačič, Sebastijan; Jeřábek, Karel; Krajnc, Peter; Slugovc, Christian

doi:10.1039/c2py00518b

Cited by 72 publications

(46 citation statements)

References 35 publications

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“…These materials, commonly termed polyHIPEs, have been prepared from a wide range of chemistries, including polystyrene 8,9 , polystyrene derivatives [10][11][12][13] , poly(meth)acrylates [14][15][16][17] , polyacrylamides [18][19][20] , poly(ether sulfone)s 21 , norbornenes 22 , poly(propylene fumarate) 23 , dicyclopentadiene 24,25 , polysaccharides 26 and proteins 27,28 .…”

Section: Introductionmentioning

confidence: 99%

Degradable emulsion-templated scaffolds for tissue engineering from thiol–ene photopolymerisation

et al. 2012

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Further information on publisher's website:http://dx.doi.org/10.1039/c2sm26250aPublisher's copyright statement:Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. AbstractEmulsion templating has been used to prepare highly porous polyHIPE materials by thiol-ene photoinitiated network formation. Commercially available multifunctional thiols and acrylates were formulated into water-in-oil high internal phase emulsions (HIPEs) using an appropriate surfactant, and the HIPEs were photo-cured. The temperature of the HIPE aqueous phase was found to influence the morphology of the resulting materials. In agreement with previous work, a higher aqueous phase temperature (80 o C) gave rise to a larger mean void and interconnect diameter. The influence of temperature on morphology was found to be reduced at higher porosity, but still significant. The Young's modulus of the porous materials was shown to be related to the functionality of the acrylate comonomer used. A mixture of penta-and hexa-acrylate gave rise to a 100-fold increase in modulus, compared to an analogous tri-functional acrylate. The materials could be functionalised conveniently by addition of mono-acrylates or thiols to the organic phase of the precursor HIPE. Degradation was observed to occur at a rate depending on the degradation conditions. Under cell culture conditions at 37 o C, 19% mass loss occurred over 15 weeks. The scaffolds were found to be capable of supporting the growth of keratinocytic cells (HaCaTs) over 11 days in culture. Some penetrative in-growth of the cells into the scaffold was observed.3

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Section: Introductionmentioning

confidence: 99%

Degradable emulsion-templated scaffolds for tissue engineering from thiol–ene photopolymerisation

et al. 2012

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“…1-vinyl-5-amino tetrazole based polyHIPEs were synthesised, which possessed higher elastic moduli than poly(styrene-codivinylbenzene) polyHIPEs. PolyHIPEs based on dicyclopentadiene have been prepared via ring-open polymerisation within emulsion templates [31,32]. The resultant polyH(M)IPEs possessed elastic moduli ranging from 23 MPa to 300 MPa depending on their porosity.…”

Section: Introductionmentioning

confidence: 99%

Robust macroporous polymers: Using polyurethane diacrylate as property defining crosslinker

Jiang

Menner

Bismarck

2016

Polymer

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“…Moreover, the use of ring-opening metathesis reactions (ROMP) has also been successfully applied for the preparation of polyHIPEs [27][28][29]. Cyclic monomers, such as dicyclopentadiene (DCPD) were used and a one-pot procedure for the further functionalization of the polyHIPEs via the residual double bonds by thiol-ene reaction was developed [29,30]. Recently, a polyHIPE membrane produced by ROMP of DCPD and norbornene has been utilised as a separator in Li-ion batteries [31] and in another study macroporous polyolefin membranes were prepared by using the same approach [32].…”

Section: Introductionmentioning

confidence: 99%

Tailoring the mechanical and thermal properties of dicyclopentadiene polyHIPEs with the use of a comonomer

Mert

Slugovc²,

Krajnc³

2015

Express Polym. Lett.

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Abstract. The effect of adding a comonomer to dicyclopentadiene in high internal phase emulsions (HIPEs) on the properties of ring-opening metathesis polymerisation (ROMP) derived polyHIPEs has been investigated. With this aim, dicylopentadiene was copolymerised with norbornene in surfactant stabilized high internal phase emulsions. Morphological, mechanical and thermal properties of the resulting materials were investigated with regard to the monomer ratio. The interconnected pore structure was observed for the resulting poly(dicylopentadiene-co-norbornene) polyHIPEs. Furthermore, the new polyHIPE copolymers were found to have an improved thermal stability compared to the poly(dicylopentadiene) homopolymer.

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Ring opening metathesispolymerisation of emulsion templated dicyclopentadiene giving open porous materials with excellent mechanical properties

Cited by 72 publications

References 35 publications

Degradable emulsion-templated scaffolds for tissue engineering from thiol–ene photopolymerisation

Degradable emulsion-templated scaffolds for tissue engineering from thiol–ene photopolymerisation

Robust macroporous polymers: Using polyurethane diacrylate as property defining crosslinker

Tailoring the mechanical and thermal properties of dicyclopentadiene polyHIPEs with the use of a comonomer

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