Correlating the mechanical and surface properties with the composition of triblock copoly(2-oxazoline)s

Kranenburg, Johannes M.; Thijs, Hanneke M. L.; Tweedie, Catherine A.; Hoeppener, Stephanie; Wiesbrock, Frank; Hoogenboom, Richard; Vliet, Krystyn J. Van; Schubert, Ulrich S.

doi:10.1039/b814587c

Cited by 15 publications

(14 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The poly(NonOx) block was found to be dominant for the thermal properties, i.e., only NonOx containing block copolymers were semicrystalline [16,17,67], the surface properties, i.e., lower surface energy for NonOx containing block copolymers [17,68,69], the surface morphology, i.e., rougher surface for NonOx containing diblock copolymers due to the presence of crystallites [69,70], as well as mechanical properties for which the semi-crystalline nature of the poly(NonOx) resulted in a modulus in between 1 and 2 GPa for the diblock copolymers with NonOx and a modulus of around 4 GPa for the diblock copolymers without NonOx [71].…”

Section: à5mentioning

confidence: 98%

Poly(2‐oxazoline)s based on fatty acids

Hoogenboom

2010

Euro J Lipid Sci & Tech

Self Cite

View full text Add to dashboard Cite

Poly(2-oxazoline)s are an interesting class of synthetic poly(amide) s that can be prepared by living cationic ring-opening polymerization. The properties of poly(2-oxazoline) s can be tuned by variation of the 2-substituent of the 2-oxazoline monomer. In this contribution the utilization of fatty acids as side chains for poly(2-oxazoline) s is highlighted. The incorporation of such long aliphatic side-chains results in hydrophobic crystalline poly(2-oxazoline) s that are often applied for the preparation of amphiphilic structures as well as for low surface energy and low adhesive coatings. The most popular fatty-acid based poly(2-oxazoline) s are the saturated poly(2-nonyl-2-oxazoline) and poly(2-undecyl-2-oxazoline) as well as the unsaturated poly(2-decenyl-2-oxazoline) and poly(2-"soy alkyl''-2-oxazoline)

show abstract

Section: à5mentioning

confidence: 98%

Poly(2‐oxazoline)s based on fatty acids

Hoogenboom

2010

Euro J Lipid Sci & Tech

Self Cite

View full text Add to dashboard Cite

show abstract

“…[13,16] If such a block was present in the copolymer, the contact angles were considerably higher and the surface energies were significantly lower than without. This is attributed to preferential orientation of the nonyl side-chains to the surface of the sample material which makes the surface more hydrophobic, thus increasing the contact angles.…”

Section: Surface Energiesmentioning

confidence: 99%

“…This is attributed to preferential orientation of the nonyl side-chains to the surface of the sample material which makes the surface more hydrophobic, thus increasing the contact angles. [12,13] In the aforementioned references, only the MeOx, EtOx, and NonOx blocks were investigated as the linear side-chains, although preliminary results for an incomplete library of side-chain lengths were also previously reported. [15] This work takes these investigations further, as the length of the side-chains is systematically increased throughout the sample library.…”

Section: Surface Energiesmentioning

confidence: 99%

“…Earlier work on 2-oxazoline copolymers showed that the mechanical properties strongly depend on the side-chains: the type of side-chain governed the glass transition temperature of the polymer, as well as the presence of crystallinity, and, therefore, the modulus of elasticity of the resulting material. [9][10][11][12][13][14] Furthermore, the mechanical properties also depend on the humidity of the surrounding atmosphere. For some poly(2-oxazoline)s, small amounts of water still present in the samples at low humidity induce hydrogen bonding and/or polar interactions between the polymer chains, resulting in relatively high elastic moduli.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Thermal, Mechanical, and Surface Properties of Poly(2‐N‐alkyl‐2‐oxazoline)s

Rettler

Kranenburg

Lambermont-Thijs

et al. 2010

Macro Chemistry & Physics

Self Cite

View full text Add to dashboard Cite

Thermal, mechanical, and surface properties of a library of poly(2‐oxazoline)s are investigated. These polymers are suitable to study structure/property relationships as their cationic ROP and the relative facile monomer synthesis allow for control over the molecular structure. The number of carbon atoms in the linear side‐chain is systematically varied from methyl to nonyl. Relations between chemical structures, thermal transitions, surface energies, and elastic moduli are discussed. It is shown that the mechanical and thermal properties of the polymers depend on the presence of a crystalline phase in the material. The amorphous polymers reveal a decrease in the reduced moduli along with a decrease in their respective glass transition temperature with increasing length of the side‐chain. magnified image

show abstract

“…The formation of quasi-diblock copoly(2-oxazoline)s was proven. The mechanical properties of triblock copoly(2-oxazoline)s [163], in particular the elastic moduli, were found to correlate with triblock copolymer composition and chain architecture. In particular the surface energy strongly depended on the presence or absence of p n NonOx blocks due to phase segregation and crystallization on the surface.…”

Section: Block Copoly(2-oxazoline)s Containing a Block Of Pphoxmentioning

confidence: 99%

Design Strategies for Functionalized Poly(2-oxazoline)s and Derived Materials

2013

Self Cite

View full text Add to dashboard Cite

Abstract:The polymer class of poly(2-oxazoline)s currently is under intensive investigation due to the versatile properties that can be tailor-made by the variation and manipulation of the functional groups they bear. In particular their utilization in the biomedic(in)al field is the subject of numerous studies. Given the mechanism of the cationic ring-opening polymerization, a plethora of synthetic strategies exists for the preparation of poly(2-oxazoline)s with dedicated functionality patterns, comprising among others the functionalization by telechelic end-groups, the incorporation of substituted monomers into (co)poly(2-oxazoline)s, and polymeranalogous reactions. This review summarizes the current state-of-the-art of poly(2-oxazoline) preparation and showcases prominent examples of poly(2-oxazoline)-based materials, which are retraced to the desktop-planned synthetic strategy and the variability of their properties for dedicated applications.

show abstract

Correlating the mechanical and surface properties with the composition of triblock copoly(2-oxazoline)s

Cited by 15 publications

References 27 publications

Poly(2‐oxazoline)s based on fatty acids

Poly(2‐oxazoline)s based on fatty acids

Thermal, Mechanical, and Surface Properties of Poly(2‐N‐alkyl‐2‐oxazoline)s

Design Strategies for Functionalized Poly(2-oxazoline)s and Derived Materials

Contact Info

Product

Resources

About