Jaan Erik Roots

Image of Jaan Erik Roots
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Phone +47-22855525
Room V 156
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Visiting address Sem Sælands vei 26 0371 OSLO
Postal address Postboks 1033 0315 OSLO
Other affiliations Department of Chemistry
Tags: Polymers - organic materials

Publications

  • Truong, Thuy le; Larsen, Åge Gellein & Roots, Jaan (2017). Morphology, crystalline features, and tensile properties of syndiotactic polypropylene blends . Journal of Applied Polymer Science.  ISSN 0021-8995.  134(12) . doi: 10.1002/app.44611
  • Paul, Jobby; Hansen, Eddy Walther & Roots, Jaan (2013). Application of single-pulse solid-state H-1-MAS NMR to probe the oxidation products in crosslinked polyethylene: A detailed spectral analysis procedure. Polymer degradation and stability.  ISSN 0141-3910.  98(1), s 408- 415 . doi: 10.1016/j.polymdegradstab.2012.08.025
  • Paul, Jobby; Hansen, Eddy Walther & Roots, Jaan (2012). Probing the molecular dynamics in XLPE aged at different temperatures by H-1 NMR relaxation time measurements. Polymer degradation and stability.  ISSN 0141-3910.  97(11), s 2403- 2411 . doi: 10.1016/j.polymdegradstab.2012.07.022
  • Truong, Thuy le; Larsen, Åge Gellein; Holme, Børge & Roots, Jaan (2012). Nonisothermal melt crystallization kinetics of syndiotactic polypropylene/alumina nanocomposites. Journal of Applied Polymer Science.  ISSN 0021-8995.  126(4), s 1198- 1206 . doi: 10.1002/app.36875
  • Bjørnsen, Geir & Roots, Jaan (2011). Plasma etching of polydimethylsiloxane: Effects from process gas composition and dc self-bias voltage . Journal of Vacuum Science & Technology B.  ISSN 1071-1023.  29(1) . doi: 10.1116/1.3521489
  • Bjørnsen, Geir; Roots, Jaan & Henriksen, Lars (2011). Patterning of soft polydimethylsiloxane elastomers using plasma etching . Journal of Applied Polymer Science.  ISSN 0021-8995.  119(2), s 888- 895 . doi: 10.1002/app.32760
  • Haddad, Raoudha; Holzinger, Michael; Villalonga, Reynaldo; Neumann, Astrid Brigitte; Roots, Jaan; Maaref, A. & Cosnier, Serge (2011). Pyrene-adamantane-beta-cyclodextrin: An efficient host-guest system for the biofunctionalization of SWCNT electrodes. Carbon.  ISSN 0008-6223.  49(7), s 2571- 2578 . doi: 10.1016/j.carbon.2011.02.049
  • Poltimae, Triinu; Tarasova, Elvira; Krumme, Andres; Roots, Jaan & Viikna, Anti (2011). Thermal Analyses of Blends of Hyperbranched Linear Low-density Polyethylene (LLDPE) with High-density Polyethylene and LLDPE Prepared by Dissolving Method. Materials Science.  ISSN 1392-1320.  17(3), s 254- 259
  • Truong, Thuy le; Larsen, Åge Gellein; Holme, Børge; Hansen, Finn Knut & Roots, Jaan (2011). Morphology of syndiotactic polypropylene/alumina nanocomposites. Polymer.  ISSN 0032-3861.  52(4), s 1116- 1123 . doi: 10.1016/j.polymer.2011.01.014
  • Bjørnsen, Geir; Henriksen, Lars; Ulvensøen, Jon Herman & Roots, Jaan (2010). Plasma etching of different polydimethylsiloxane elastomers, effects from process parameters and elastomer composition . Microelectronic Engineering.  ISSN 0167-9317.  87(1), s 67- 71 . doi: 10.1016/j.mee.2009.05.024
  • Hansen, Eddy Walther & Roots, Jaan (2010). DETERMINATION OF CRYSTALLINITY IN POLYETHYLENE FROM 1H-NMR FID ANALYSIS EFFECT OF NON-CURIE TEMPERATURE BEHAVIOUR. International Journal of Research Reviews in Applied Sciences.  ISSN 2076-734X.  5(3), s 207- 212
  • Truong, Thuy le; Larsen, Åge; Holme, Børge; Diplas, Spyridon; Hansen, Finn Knut; Roots, Jaan & Jørgensen, Sissel (2010). Dispersibility of silane-functionalized alumina nanoparticles in syndiotactic polypropylene. Surface and Interface Analysis.  ISSN 0142-2421.  42(6-7), s 1046- 1049 . doi: 10.1002/sia.3166
  • Zhang, Lili; Hansen, Eddy Walther; Helland, Irene; Hinrichsen, Einar; Larsen, Åge & Roots, Jaan (2009). Crystallinity in Ethene-1-Hexene Copolymers Determined by H-1 and C-13 NMR. A Comparative Study. Macromolecules.  ISSN 0024-9297.  42(14), s 5189- 5195 . doi: 10.1021/ma900249z
  • Krumme, Andres; Lehtinen, Arja; Adamovsky, Sergey; Schick, Christoph; Roots, Jaan & Viikna, Anti (2008). Crystallization behavior of some unimodal and bimodal linear low-density polyethylenes at moderate and high supercooling. Journal of Polymer Science Part B: Polymer Physics.  ISSN 0887-6266.  46, s 1577- 1588 . doi: 10.1002/polb.21494
  • Hansen, Eddy Walther; Norby, Poul; Roots, Jaan & Wu, Qinglan (2007). Gelation of Delaminated Layered Double Hydroxide Nanosheets in Formamide Probed by Proton Spin-Spin Relaxation and Pulsed Field Gradient NMR. Journal of Physical Chemistry C.  ISSN 1932-7447.  111(32), s 11854- 11861 . doi: 10.1021/jp072273n
  • Wu, Qinglan; Sjastad, AO; Vistad, OB; Knudsen, KD; Roots, Jaan; Pedersen, JS & Norby, Poul (2007). Characterization of exfoliated layered double hydroxide (LDH, Mg/Al=3) nanosheets at high concentrations in formamide. Journal of Materials Chemistry.  ISSN 0959-9428.  17 . doi: 10.1039/b612389a
  • Wu, Qinglan; Olafsen, Anja; Vistad, Ørnulv; Roots, Jaan & Norby, Poul (2005). Delamination and restacking of a layered double hydroxide with nitrate as counter anion. Journal of Materials Chemistry.  ISSN 0959-9428.  15(44), s 4695- 4700 . doi: 10.1039/b511184f
  • Baldursdottir, Stefania; Kjøniksen, Anna-Lena; Karlsen, Jan; Nyström, Bo; Tønnesen, Hanne Hjorth & Roots, Jaan (2003). Riboflavin-Photosensitized Changes in Aqueous Solutions of Alginate. Rheological Studies. Biomacromolecules.  ISSN 1525-7797.  4(2), s 429- 436
  • Baldursdottir, Stefania; Kjøniksen, Anna-Lena; Roots, Jaan; Tønnesen, Hanne Hjorth & Nyström, Bo (2003). Influence of Concentration and Molecular Weight on the Photosensitized Degradation in Aqueous Alginate Solutions. Polymer Bulletin.  ISSN 0170-0839.  50(5-6), s 373- 380
  • Kjøniksen, Anna-Lena; Nordby, Marianne Hiorth; Roots, Jaan & Nyström, Bo (2003). Shear-Induced Association and Gelation of Aqueous Solutions of Pectin. Journal of Physical Chemistry B.  ISSN 1520-6106.  107(26), s 6324- 6328
  • Nordby, Marianne Hiorth; Kjøniksen, Anna-Lena; Nyström, Bo & Roots, Jaan (2003). Thermoreversible Gelation of Aqueous Mixtures of Pectin and Chitosan. Rheology. Biomacromolecules.  ISSN 1525-7797.  4(2), s 337- 343
  • Tho, Ingunn; Kjøniksen, Anna-Lena; Nyström, Bo & Roots, Jaan (2003). Characterization of Associations and Gelation of Pectin in Methanol-Water Mixtures. Biomacromolecules.  ISSN 1525-7797.  4(6), s 1623- 1629
  • Marstokk, Olav & Roots, Jaan Erik (1999). Synthesis and characterization of hydrophobically modified poly(vinyl alcohol). Polymer Bulletin.  ISSN 0170-0839.  42, s 527- 533
  • Roots, Jaan Erik; Ma, Kuangbiao; Higgins, J.S. & Arrighi, V. (1999). Quasilelastic neutron scattering study of poly(dimethyl siloxane) at high pressure. Physical Chemistry, Chemical Physics - PCCP.  ISSN 1463-9076.  1, s 137- 141
  • Marstokk, Olav; Nyström, Bo & Roots, Jaan (1998). Effect of denaturant and polymer concentration on the structural and dynamic properties of aqueous solutions of poly(N-acetamido acrylamide). Macromolecules.  ISSN 0024-9297.  31, s 4205- 4212

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  • Tesfu, Teame Kiros; Hansen, Finn Knut & Roots, Jaan (2016). Surface characterization of amphoteric and anionic membranes .
  • Paul, Jobby; Hansen, Eddy Walther & Roots, Jaan (2013). Ageing of XLPE monitored by solid state1H NMR .
  • Truong, Thuy le; Larsen, Åge Gellein; Holme, Børge; Hansen, Finn Knut & Roots, Jaan (2013). Syndiotactic polypropylene nanocomposites and blends: Morphology, crystallization behavior and tensile properties .
  • Hansen, Eddy Walther; Paul, Jobby; Roots, Jaan; Jørgensen, Sissel; Poltimae, T & Krumme, Andres (2012). Easy access to the amount of short chains in ethene/alfa-alkene copolymers from solid state 1H-MAS NMR.
  • Paul, Jobby; Hansen, Eddy Walther; Roots, Jaan & Jørgensen, Sissel (2012). Thermal Oxidation of XLPE monitored by solid state 1H-NMR.
  • Bjørnsen, Geir; Ulvensøen, Jon Herman; Henriksen, Lars & Roots, Jaan (2010). Patterning of soft polymer films for optical applications .
  • Truong, Le Thuy; Larsen, Åge Gellein; Holme, Børge; Diplas, Spyros; Hansen, Finn Knut; Roots, Jaan & Jørgensen, Sissel (2009). Dispersibility of Silane-functionalized Alumina Nanoparticles in Syndiotactic Polypropylene.
  • Truong, Le Thuy; Larsen, Åge; Holme, Børge; Hansen, Finn Knut & Roots, Jaan (2009). Morphology and crystallization behavior of syndiotactic polypropylene-alumina nanocomposites.
  • Zhang, Lili; Hansen, Eddy Walther; Roots, Jaan & Chen, Qun (2009). Solid-state NMR Characterization of Crystallinity and Dynamics in Polyethylene .
  • Bjørnsen, Geir; Ulvensøen, Jon Herman; Henriksen, Lars & Roots, Jaan (2008). Patterning of soft polydimethylsiloxane for optical applications.
  • Neumann, Astrid; Glerup, Marianne; Roots, Jaan & Holzinger, Michael (2008). Anionic polymerization on SWCNTs.
  • Baldursdottir, Stefania; Nyström, Bo; Kjøniksen, Anna-Lena; Roots, Jaan; Karlsen, Jan & Tønnesen, Hanne Hjorth (2002). Degradation of Alginate by Riboflavin Photosensitizer.
  • Nyström, Bo; Roots, Jaan; Karlsen, Jan & Tønnesen, Hanne Hjorth (2002). Hydrogeler: Skreddersydde materialer. Apollon : Forskningsmagasin for Universitetet i Oslo.  ISSN 0803-6926.  4(12), s 32- 34
  • Nordby, Marianne Hiorth; Sande, Sverre Arne; Roots, Jaan Erik & Nyström, Bo (2002). Thermoreversible gelation in acidic aqueous mixtures of chitosan and pectin.

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Published Nov. 11, 2010 9:00 AM - Last modified June 27, 2011 11:40 AM