New carbohydrate amphiphiles, 2. Gel formation and gel morphologies

Beginn, Uwe; Keinath, Sandra; Möller, Martin

doi:10.1002/(sici)1521-3935(19981101)199:11<2379::aid-macp2379>3.0.co;2-2

Cited by 48 publications

(8 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In previous stud-ies, [5,12] ªLowicryl HM20ºÐa methacrylate mixture that undergoes low volume shrinkage on polymerizationÐwas found to be a good solvent for the presented class of compounds. Figure 6 depicts the pseudo-binary phase diagram of the system 8 a/HM20.…”

Section: Resultsmentioning

confidence: 96%

Synthesis and Characterization of Tris-Methacrylated 3,4,5-Tris[(alkoxy)benzyloxy]benzoate Derivatives

2000

Self Cite

View full text Add to dashboard Cite

The synthesis of liquid crystalline 3,4,5-tris(11-methacryloylundecyl-1-oxybenzyloxy)benzoic acid, 2-methyl-(1,4,7,10,13-pentaoxacyclopentadecane)-3,4,5-tris[4-(11-methacryloylundecyl-1-oxy)benzyloxy] benzoate and its 1:1 complex with sodium triflate is described. The observed mesophases were identified, by polarized optical microscopy and contact preparation techniques, to be of hexagonal columnar disordered structure. The amphiphiles form lyotropic columnar phases in concentrated methacrylate solvents, while at low solute contents supramolecular organogels emerge.

show abstract

Section: Resultsmentioning

confidence: 96%

Synthesis and Characterization of Tris-Methacrylated 3,4,5-Tris[(alkoxy)benzyloxy]benzoate Derivatives

2000

Self Cite

View full text Add to dashboard Cite

show abstract

“…Möller and co-workers later went on to use this polymer matrix technique to capture benzamide derived LMWGs. 22,23 Embedding, then removing a LMWG can extend the function of standard polymeric materialsa key advantage of this approach.…”

Section: Category 1polymerisation Of Lmwg Fibresmentioning

confidence: 99%

Expanding the scope of gels – combining polymers with low-molecular-weight gelators to yield modified self-assembling smart materials with high-tech applications

2015

View full text Add to dashboard Cite

Combining low molecular weight gelators (LMWGs) with polymers is a broad yet relatively recent field, in a phase of rapid expansion and with huge potential for exploitation. This review provides an overview of the state-of-the-art and reflects on new technologies that might be unlocked. We divide LMWG-polymer systems into five categories: (i) polymerisation of self-assembled LMWG fibres, (ii) capture of LMWG fibres in a polymer matrix, (iii) addition of non-gelling polymer solutions to LMWGs, (iv) systems with directed interactions between polymers and LMWGs, and (v) hybrid gels containing both LMWGs and polymer gels (PGs). Polymers can have significant impacts on the nanoscale morphology and materials performance of LMWGs, and conversely LMWGs can have a major effect on the rheological properties of polymers. By combining different types of gelation system, it is possible to harness the advantages of both LMWGs and PGs, whilst avoiding their drawbacks. Combining LMWG and polymer technologies enhances materials performance which is useful in traditional applications, but it may also yield major steps forward in high-tech areas including environmental remediation, drug delivery, microfluidics and tissue engineering.

show abstract

“…The molecular mechanisms leading to gelling, while not fully understood yet, rely on relatively weak but highly directional molecular interactions between LMG molecules, e.g., hydrogen bonding, π–π stacking, acceptor–donor interactions, etc. Some typical classes of molecules (and their derivatives) that have been used to synthesize LMGs include fatty and amino acids, carbohydrates and sugars, monoglycerides, steroids and cholesterols, etc . As a result, biosourced LMGs have recently attracted the interest of biorefineries …”

Section: Introductionmentioning

confidence: 99%

Preparation of Porous Organogels Using Water Soluble Polymer Templates

Kabbara

Ганчева

Gazil

et al. 2016

Macro Chemistry & Physics

View full text Add to dashboard Cite

This study presents a new method for the preparation of organogels embedded with interconnected macropores tunable in size from 180 to 700 μm. The gels are molded in porous polyvinyl alcohol (PVOH) polymer templates obtained from melt‐processed cocontinuous blends of PVOH and poly(ε‐caprolactone) (PCL). The blends are subsequently annealed under quiescent conditions to let their morphology coarsen, and are rendered porous by selectively extracting the PCL. After the injection in the PVOH molds and in situ gelling of a dilute solution of an organic liquid and a low molecular weight gelling agent, 12‐hydroxyoctadecanoic acid, the molds are extracted with water. This yields porous organogels with microstructural features corresponding relatively well to those of the original molds, as revealed by X‐ray microtomography. This method allows control over the gels' average pore size, pore interconnectivity, and volume fraction, and is compatible with a variety of organic liquids and low molecular weight gelators.

show abstract

New carbohydrate amphiphiles, 2. Gel formation and gel morphologies

Cited by 48 publications

References 0 publications

Synthesis and Characterization of Tris-Methacrylated 3,4,5-Tris[(alkoxy)benzyloxy]benzoate Derivatives

Synthesis and Characterization of Tris-Methacrylated 3,4,5-Tris[(alkoxy)benzyloxy]benzoate Derivatives

Expanding the scope of gels – combining polymers with low-molecular-weight gelators to yield modified self-assembling smart materials with high-tech applications

Preparation of Porous Organogels Using Water Soluble Polymer Templates

Contact Info

Product

Resources

About