Werdegang

Seit 2003	wiss. Mitarbeiterin im Arbeitskreis von Prof. Stefan Spange
2008	Promotion bei Prof. Stefan Spange
1998–2003	Diplomstudium Chemie an der Technischen Universität Chemnitz

Publikationen

[14]	Influence of the Reaction Conditions and Molecular Structure on the Kinetic of the Nucleophilic Aromatic Substitution of Fluoro Compounds with Poly(vinyl amine) in Water. K. Hofmann, I. Roth, S. Spange, Macromol. Chem. Phys. 2012, 213 (16), 1655–1662. DOI: 10.1002/macp201200115
[13]	Influence of the Boron Atom on the Solvatochromic Properties of 4-Nitroaniline-Functionalized Boronate Esters K. Hofmann, S. Spange, J. Org. Chem. 2012, 77 (11), 5049–5055. DOI: 10.1021/jo300530k
[12]	Solvatochromism and acidochromism of azobenzene-functionalized poly(vinyl amines) K. Hofmann, S. Brumm, C. Mende, K. Nagel, A. Seifert, I. Roth, D. Schaarschmidt, H. Lang, S. Spange, New J. Chem. 2012, (36), 3324–3331. DOI: 10.1039/c2nj40313g
[11]	Probing Surface Polarity using Merocyanine-type Dyes derived from Barbituric Acid. S. Seifert, A. Seifert, K. Hofmann, T. Rüffer, G. Brunklaus, H. Lang, S. Spange, New J. Chem. 2012, 36, 674–684. DOI: 10.1039/C2NJ20835K
[10]	Chromo- and fluorophoric water-soluble polymers and silica particles by nucleophilic substitution reaction of poly(vinyl amine). K. Hofmann, I. Kahle, F. Simon, S. Spange, Beilstein J. Org. Chem. 2010, 6, No. 79. DOI: 10.3762/bjoc.6.79
[9]	Novel Periphery-Functionalized Solvatochromic Nitrostilbenes As Precursors for Class II Hybrid Materials K. Schreiter, K. Hofmann, A. Seifert, A. Oehlke, K. Ladewig, T. Rüffer, H. Lang, S. Spange, Chem. Mater. 2010, 22 (9), 2720–2729. DOI: 10.1021/cm903048u
[8]	Synthesis of Dye Functionalized Xerogels via Nucleophilic Aromatic Substitution of Fluoro Aromatic Compounds with Aminosilanes. A. Seifert, K. Ladewig, P. Schönherr, K. Hofmann, R. Lungwitz, I. Roth, A. Pohlers, W. Hoyer, G. Baumann, S. Schulze, M. Hietschold; N. Moszner, P. Burtscher, S. Spange, J. Sol-Gel Sci. Technol. 2010, 53, 328–341. DOI: 10.1007/s10971-009-2096-x
[7]	Electrophilic substituent constant σ+ of electron donor substituents in nonpolar media. A. Oehlke, A. A. Auer, K. Schreiter, K. Hofmann, F. Riedel, S. Spange, J. Org. Chem. 2009, 74, 3316–3322. DOI: 10.1021/jo9000383
[6]	Solvatochromism and linear solvation energy relationship of diol- and proline-functionalized azo dyes using the KAMLET-TAFT and CATALÁN solvent parameter sets. K. Hofmann, K. Schreiter, A. Seifert, T. Rüffer, H. Lang, S. Spange, New J. Chem. 2008, 32, 2180–2188. DOI: 10.1039/b809055f
[5]	Chiral Solvatochromic Schiff Bases Containing the (S)-Prolin or (R)-1,2-Diolpropane Functionality. S. Spange, K. Schreiter, K. Hofmann, Synthesis 2006, 13, 2100–2102. DOI: 10.1055/s-2006-942408
[4]	New aspects on Polarity of ionic liquids as measured by solvatochromic Probes. A. Oehlke, K. Hofmann, S. Spange, New J. Chem. 2006, 30, 533–536. DOI: 10.1039/b516709d
[3]	Chiral 1,2- and 1,3-Diol-Functionalized Chromophores as Lego Building Blocks for Coupled Structures. S. Spange, K. Hofmann, B. Walfort, T. Rüffer, H. Lang, J. Org. Chem. 2005, 70, 8564–8567.
[2]	A Solvatochromic Dye for Probing Significantly the Dipolarity/Polarizability of Acidic Environments. S. Spange, R. Sens, Y. Zimmermann, A. Seifert, I. Roth, S. Anders, K. Hofmann, New J. Chem. 2003, 27, 520–524.
[1]	Influence of chemical solvent properties on the surface polarity of silica particles in slurry. Y. Zimmermann, S. Anders, K. Hofmann, S. Spange, Langmuir 2002, 18, 9578–9586. 10.1021/la020574c S0743-7463(02)00574-7

Aufgabengebiet

• Laborleiterin (1/313, 1/315)
• Projektleiterin Industrieprojekte
• Betreuung Schwerpunktpraktika
• Betreuung von Bachelor- und Masterarbeiten
• UV-Vis Spektroskopie

Doktorarbeit

Chirale 1,2- und 1,3-Diolfunktionalisierte Chromophore als Bausteine für Gekoppelte Strukturen, 2008, TU Chemnitz

Vorträge

"Synthesis and material preparation"
Symposium Graduiertenkolleg Nr. 829/1 (Accumulation of Single Molecules to Nanostructures) "Status and Future of Accumol", Glauchau, 23.04.2004.

"Solvatochromism of chromophoric nitroanilines linked to boronic acids"
Winterschool des Graduiertenkollegs Nr. 829/1 (Accumulation of Single Molecules to Nanostructures), Sayda, 08.02.2005.

"Chiral 1,2- and 1,3-Diol-functionalized Chromophores as Lego® Building Blocks for Coupled Structures"
Symposium des Graduiertenkollegs Nr. 894/1 (Self-Organisation by Coordinative and Non-Covalent Interactions, Universität Halle-Wittenberg), Kohren-Sahlis, 17.02.2005

"Polymerchemie als interdisziplinäres Bindeglied Kombinatorische Konzepte für Chromophore, Makromoleküle und anorganische Oxide"
Doktorandenseminar TU-Chemnitz, 14.06.2007

Poster

2016	Chemical Modification of Reinforcing Materials to Improve Adhesion in Natural Fiber Composites, R. John, K. Trommler, K. Schreiter, F. Simon, C. Siegel, A. Wagenführ, S. Spange, 18. Werkstofftechnisches Kolloquium, 10.03.–11.03.2016, Chemnitz/Deutschland. New Approach for Adhesion Promotion in Natural Fiber Composites, John, R.; Trommler, K.; Schreiter, K.; Siegel, C.; Wagenführ, A.; Spange, S.; Internationale wissenschaftliche Tagung PolyMerTec16, 2016, Merseburg/Deutschland.
2015	A modular concept for fabrication of externally switchable chromophoric boronate ester hybrid materials, N. Friebe, A. Oehlke, K. Trommler, K. Schreiter, S. Spange, Frontiers of Polymer Science, 20.05.–22.05.2015, Riva del Garda/Italien. Polyvinylamin als Haftvermittler in naturfaserverstärkten Kunststoffen, Rico John, Katja Trommler, Katja Schreiter, Carolin Siegel, Andre Wagenführ, Stefan Spange, 11. ThGOT Thementage Grenz- und Oberflächentechnik, 15.09.–17.09.2015, Zeulenroda-Triebes/Deutschland. Aromatic Oxime Derivatives as Reactive Adhesion Promoters, Rico John, Katja Trommler, Katja Schreiter, Stefan Spange, 2nd International MERGE Technologies Conference, 01.10.–02.10.2015, Chemnitz/Deutschland.
2014	Polymerfunktionalisierte Kohlenstoff-Nanoröhrchen, K. Hofmann, A. Heft, S. Höhne, S. Spange, B. Grünler, Inno.CNT-Jahreskongress, 2014, 18.–19.02.2014, Karlsruhe. Chromophore und fluorophore wasserlösliche Polyvinylamine und Silikapartikel, K. Trommler, I. Kahle, K. Schreiter, F. Simon, S. Spange, 10. ThGOT Thementage Grenz- und Oberflächentechnik, 02.–04.09.2014, Leipzig. Chromophoric and fluorophoric water soluble polyvinylamines and silica particles, K. Trommler, I. Kahle, K. Schreiter, F. Simon, S. Spange, Biannual Meeting of the GDCh-Devision of Macromolecular Chemistry, 14.09.–16.09.2014, Jena.
2010	Cyclodextrin as Smart Tool for Various Chromophoric Polyvinylamines, K. Hofmann, I. Roth, S. Spange, 15th International Cyclodextrin Symposium, 09.12.05.2010, Wien, österreich.
2007	Chiral Chromophores which contain Amino Acid- and Diol-Functionalities as Building Blocks for Coupled Structures, K. Schreiter, K. Hofmann, T. Rüffer, B. Walfort, H. Lang, S. Spange, 9th young scientists conference on chemistry, 22.24.03.2007, Chemnitz. Diolfunctionalized Anilines as Starting Points for Coupled Structures, K. Hofmann, T. Rüffer, H. Lang, S. Spange, 15th European Symposium on Organic Chemistry, 08.07.–13.07. 2007; Dublin, Irland. Diolfunctionalized Nitroanilines: Molecular Self Assembling via Intermolecular Hydrogen Bonds, K. Hofmann, T. Rüffer, B. Walfort, H. Lang, S. Spange, 12th International Symposium on Novel Aromatic Compounds, 22.07.–27.07.2007, Awaji Island, Japan.
2006	Chiral Chromophores which contain Amino Acid- and Diol-Functionalities as Building Blocks for Coupled Structures, K. Schreiter, K. Hofmann, T. Rüffer, B. Walfort, H. Lang, S. Spange, 1st European Chemistry Congress, 27.31.08.2006, Budapest, Ungarn.
2005	Chromophoric Molecules with suitable functionale groups to bind reversible to each other-LEGO® Principle, K. Hofmann, K. Schreiter, A. Oehlke, S. Spange, Autumnschool des Graduiertenkollegs GRK 829/1 "Accumulation of Single Molecules to Nanostructures", 07.09.02.2005, Sayda.

Patente

• DE102011009469B4
• INV0077470, PF 77470 EP
• INV0077829, PF 77829 EP