Jaan Erik Roots

Room V 156
Username
Visiting address Sem Sælands vei 26 Kjemibygningen 0371 Oslo
Postal address Postboks 1033 Blindern 0315 Oslo
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. Full text in Research Archive
  • 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), p. 408–415. doi: 10.1016/j.polymdegradstab.2012.08.025.
  • 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), p. 1198–1206. doi: 10.1002/app.36875.
  • 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), p. 2403–2411. doi: 10.1016/j.polymdegradstab.2012.07.022.
  • 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), p. 254–259. doi: 10.5755/j01.ms.17.3.589.
  • Haddad, Raoudha; Holzinger, Michael; Villalonga, Reynaldo; Neumann, Astrid Brigitte; Roots, Jaan & Maaref, A. [Show all 7 contributors for this article] (2011). Pyrene-adamantane-beta-cyclodextrin: An efficient host-guest system for the biofunctionalization of SWCNT electrodes. Carbon. ISSN 0008-6223. 49(7), p. 2571–2578. doi: 10.1016/j.carbon.2011.02.049.
  • 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), p. 1116–1123. doi: 10.1016/j.polymer.2011.01.014.
  • 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), p. 888–895. doi: 10.1002/app.32760.
  • Truong, Thuy le; Larsen, Åge; Holme, Børge; Diplas, Spyridon; Hansen, Finn Knut & Roots, Jaan (2010). Dispersibility of silane-functionalized alumina nanoparticles in syndiotactic polypropylene. Surface and Interface Analysis. ISSN 0142-2421. 42(6-7), p. 1046–1049. doi: 10.1002/sia.3166.
  • 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), p. 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), p. 207–212.
  • 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), p. 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, p. 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), p. 11854–11861. doi: 10.1021/jp072273n.
  • Wu, Qinglan; Sjastad, AO; Vistad, OB; Knudsen, KD; Roots, Jaan & Pedersen, JS [Show all 7 contributors for this article] (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), p. 4695–4700. doi: 10.1039/b511184f.
  • 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), p. 337–343.
  • 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), p. 429–436.
  • 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), p. 6324–6328.
  • 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), p. 373–380.
  • 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), p. 1623–1629.
  • Marstokk, Olav & Roots, Jaan Erik (1999). Synthesis and characterization of hydrophobically modified poly(vinyl alcohol). Polymer Bulletin. ISSN 0170-0839. 42, p. 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, p. 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, p. 4205–4212.

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  • Paul, Jobby; Hansen, Eddy Walther; Roots, Jaan & Jørgensen, Sissel (2012). Thermal Oxidation of XLPE monitored by solid state 1H-NMR.
  • 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.
  • Truong, Le Thuy; Larsen, Åge Gellein; Holme, Børge; Diplas, Spyros; Hansen, Finn Knut & Roots, Jaan (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.
  • 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.
  • Nyström, Bo; Roots, Jaan; Karlsen, Jan & Tønnesen, Hanne Hjorth (2002). Hydrogeler: Skreddersydde materialer. Apollon : Forskningsmagasin for Universitetet i Oslo. ISSN 0803-6926. 4(12), p. 32–34.
  • Nordby, Marianne Hiorth; Sande, Sverre Arne; Roots, Jaan Erik & Nyström, Bo (2002). Thermoreversible gelation in acidic aqueous mixtures of chitosan and pectin.
  • Baldursdottir, Stefania; Nyström, Bo; Kjøniksen, Anna-Lena; Roots, Jaan; Karlsen, Jan & Tønnesen, Hanne Hjorth (2002). Degradation of Alginate by Riboflavin Photosensitizer.
  • Tesfu, Teame Kiros; Hansen, Finn Knut & Roots, Jaan (2016). Surface characterization of amphoteric and anionic membranes. Universitetet i Oslo.
  • Bjørndal, Alexander Raphael Holen; Roots, Jaan & Hansen, Eddy Walther (2014). Optical Biosensors for Glucose. Kjemisk Institutt, Universitetet i Oslo.
  • 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. Universitetet i Oslo.
  • Paul, Jobby; Hansen, Eddy Walther & Roots, Jaan (2013). Ageing of XLPE monitored by solid state1H NMR. Universitetet i Oslo.
  • Bjørnsen, Geir; Ulvensøen, Jon Herman; Henriksen, Lars & Roots, Jaan (2010). Patterning of soft polymer films for optical applications. Universitetet i Oslo.
  • Zhang, Lili; Hansen, Eddy Walther; Roots, Jaan & Chen, Qun (2009). Solid-state NMR Characterization of Crystallinity and Dynamics in Polyethylene. Universitetet i Oslo.

View all works in Cristin

Published Nov. 11, 2010 9:00 AM - Last modified Jan. 12, 2021 4:20 PM