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General Information
Name: Stephen James Pickene-mail:
stephen.picken@akzonobel.com
stephen.picken@wxs.nl
Present Address:
Prof.dr. S.J. Picken
Delft University of Technology
Department of Materials
Science and Technology
Section Polymer Materials
and Engineering
Julianalaan 136
2628 BL Delft
The Netherlands
tel. +31 15 278 6946/1828
fax. +31 15 278 7415
e-mail: s.j.picken@tnw.tudelft.nl
Curriculum Vitae
School & University
Hervomde School, Haren (Gr), Netherlands 1965-1971St. Maartens College, Haren (Gr) , Netherlands 1971-1977
University of Groningen , Netherlands 1977-1985
Educational Qualifications:
Atheneum B (1977)Kandidaats examen Theoretical Physics and Astronomy, Feb. 1981
Doctoraal examen Solid State & Theoretical Physics (Gemengde Natuurkunde), March 1985
PhD. thesis, Rijks Universiteit Utrecht, October 1990 (Cum Laude)
Title: "Orientational Order in Aramid Solutions"
Promotor: Prof. H.N.W. Lekkerkerker (RUU)
Co.Promotor: Dr.Ir. M.G. Northolt (Akzo Nobel)
Professional Career:
Research Physicist Akzo Nobel Corporate/Central Research (1985 - to date)Group head: Materials Structure & Properties (1999 - to date)
Project Member: "Mesophase Pitch
Based Carbon Fibres" (1987-1989)
Project Leader: "Digital
data storage" (1989-1990), 3 my/yr
Project Leader: "Rheology
of LCP’s" (1985-to date), 0.5 my/yr
Project Leader: "Negative
birefringent Liquid Crystal Polymers and Elastomers (1997-to date), 7.5
my/yr
International Contacts & Professional Associations:
EC Human Capital Mobility Network "Rheology of Liquid Crystals" en "Dynamics of liquid crystals"Editor of the newsletter "Liquid Crystals Today" of the "International Liquid Crystal Society" (ILCS)
Regional representative for NL /B with the board of management of the ILCS .
Member of the commission for the stimulation of research on "Soft Condensed Matter Physics" (FOM) and of the SOFTLINK (FOM/SON/NWO) programme.
Various activities for SON/FOM/NWO/STW and CW, member of the NVNV (Dutch Association for Neutron-scattering), the Dutch Physical Society (NNV), the ACS, the ILCC and the Society of Rheology (AIP).
Organiser together with Prof. Broer (Philips/TUE/DPI) of the yearly "Dutch Belgian Liquid Crystals Meeting"
Secretary of the open section "Vloeibare Kristallen & Surfactenten" of the KNCV
Contact person: DPI IRC4 "Functional Polymers
for Electrical and Optical
applications"
Referee for "Macromolecules", "Journal
or Rheology", "Liquid Crystals", "Journal of Chemical Physics"
Further contacts with a.o. Nolte (KUN),
Sudhölter (LUW), Warman (TUD-IRI), Van der Maarel (RUL), Luckhurst
(Southampton), Noirez (Saclay), Jérôme (UvA), De Jeu (AMOLF),
Lekkerkerker (RUU), Mewis (KU Leuven), Navard (Sophia Antipolis).
List of Publications S.J. Picken
"The order parameters <P2> and <P4>
in nematic p-alkyl-p'-cyanobiphenyls: polarised Raman measurements and
the influence of molecular association." L.G.P. Dalmolen, S.J. Picken,
A.F. de Jongh, W.H. de Jeu, J.Phys. 1985, 46, 1433.
"Rheological properties of aramid solutions:
Transient flow and rheo- optical measurements."
H.L. Doppert, S.J. Picken, Mol.Cryst.Liq.Cryst.
1987, 153, 109.
"A model for poling by an electric field
of acceptor-donor molecules in a liquid-crystal phase."
C.P.J.M. van der Vorst, S.J. Picken, SPIE
Procedings 1987, 866, 99.
"A molecular dynamics study of of the nematic
phase of 4-n-pentyl-4'-cyanobiphenyl."
S.J. Picken, W.F. van Gunsteren, P.Th.
van Duynen, W.H. de Jeu, Liquid Crystals 1989, 6, 357.
"Clearing temperatures of aramid solutions
in sulfuric acid."
S.J. Picken, Macromolecules 1989, 22,
1766.
"Phase Transitions and Rheology of Aramid
Solutions."
S.J. Picken, Liquid Crystals 1989, 5,
1635.
"Homologous series of liquid-crystalline
metal-free and copper octa-n-alkoxyphtalocyanines."
J.F. van der Pol, E. Neeleman, J.W. Zwikker,
R.J.M. Nolte, W. Drenth, J. Aerts, R. Visser, S.J. Picken, Liquid Crystals
1989, 6, 577.
"Orientational order in aramid solutions
determined by diamagnetic susceptibility and birefringence measurements."
S.J. Picken, Macromolecules 1990, 23,
464.
"Structure and rheology of aramid
solutions: X-ray scattering measurements."
S.J. Picken, J. Aerts, R. Visser, M.G.
Northolt, Macromolecules 1990, 23, 3849.
"Electric field poling of acceptor-donor
molecules."
C.P.J.M. van der Vorst, S.J. Picken, J.
Opt. Soc. Am. B. 1990, 7, 320.
"Structure and rheology of aramid solutions:
Transient rheological and rheo-optical measurements."
S.J. Picken, J. Aerts, H.L. Doppert, A.J.
Reuvers, M.G. Northolt, Macromolecules 1991, 24, 1366.
"Peripherally octasubstituted phtalocyanines
with branched alkoxy chains."
P.G. Schouten, J.F. van der Pol, J.W.
Zwikker, W. Drenth, S.J. Picken, Mol. Cryst. Liq. Cryst. 1991, 195, 291-305.
"Molecular and Macroscopic orientational
order in aramid solutions: a model to explain the influence of some spinning
parameters on the modulus of aramid yarns."
S.J. Picken, S. vand der Zwaag, M.G. Northolt,
Polymer 1992, 33(14), 2298-3006.
"Experimental and theoretical analysis
of band formation in polymeric liquid crystals upon cessation of flow."
S.J. Picken, P. Moldenaers, S. Berghmans,
J. Mewis, Macromolecules 1992, 25(18), 4759-4767.
"Evidence of a chiral superstructure in
the discotic mesophase of an optically active phtalocyanine."
C.F. van Nostrum, A.W. Bosman, G.H. Gelinck,
S.J. Picken, P.G. Schouten, J.H. Warman, A.-J. Schouten, R.J.M. Nolte,
J. Chem. Soc. Chem. Comm. 1993, 14, 1120.
"A deuterium NMR investigation of local
orientation and director kinetics in aramid solutions."
S.M. Fan, G.R. Luckhurst, S.J. Picken,
J. Chem. Phys. 1994, 101, 3255.
"Construction of a multiwired molecular
cable of micrometer length by a self-assembly process."
C.F. Van Nostrum , S.J. Picken , R.J.M.
Nolte, Angew. Chem. 1994, 33, 2173.
"Tunable supramolecular structures from
clips and baskets derived from glycoluril."
J.L.M. Van Nunen, R.S.A. Stevens,
S.J. Picken, R.J.M. Nolte, J. Am. Chem. Soc. 1994, 116, 8825.
"Band formation upon cessation of flow
in liquid-crystalline polymers."
J. Vermant, P. Moldenaers, J. Mewis, S.J.
Picken, J. Rheol. 1994, 38, 1571.
"A comparison between texture and rheological
behaviour of lyotropic liquid-crystalline polymers during flow."
J. Vermant, P. Moldenaers, S.J. Picken,
J. Mewis, J. Non-Newtonian Fluid Mech. 1994, 53, 1.
"Synthesis and supramolecular chemistry
of novel liquid-crystalline crown ether-substituted phthalocyanines - toward
molecular wires and molecular ionoelectronics."
C.F. Van Nostrum, S.J. Picken, A.J. Schouten,
R.J.M. Nolte, J. Am. Chem. Soc. 1995, 117, 9957.
"Supramolecular structure, physical-properties,
and Langmuir-Blogett film formation of an optically active liquid-crystalline
phthalocyanine."
C.F. Van Nostrum, A.W. Bosman, G.H. Gelinck,
P.G. Schouten, J.M. Warman, A.P.M. Kentgens, M.A.C. DeVillers, A. Meijerink,
S.J. Picken, U. Sohling, A.J. Schouten, R.J.M. Nolte, Chemistry 1995, 1,
171.
"Supramolecular structure, physical-properties,
and Langmuir-Blodgett film formation of an optically-active liquid-crystalline
phthalocyanine."
C.F. Van Nostrum, A.W. Bosman, G.H. Gelinck,P.G.
Schouten, J.M.Warman, A.P.M. Kentgens, M.A.C. DeVillers, A. Meijerink,
S.J. Picken,U. Sohling, A.J. Schouten, R.J.M. Nolte, Angew. Chem.
1995, 34, A 171.
"Measurement of the domain growth kinetics
in multidomain nematic liquid crystal polymers by means of the worm-like
path model for multiple scattering."
S.J.Picken, R.J. van Wijk, J.W.Th. Lichtenbelt,
J.B. Westerink, P.J. van Klink, Mol. Cryst. Liq. Cryst. 1995, 261, 535.
"FT-IR study of the electric field modulation
of liquid-crystalline 5CB."
J. De Bleijser, L.H. Leyte-Zuiderweg,
J.C. Leyte, P.C.M. Van Woerkom, S.J. Picken, Appl. Spectr.1996, 50,
167.
"Phase transitions of hydroxy-telechelic
side-chain liquid crystalline polyethers and netorks derived thereof."
J.B. Reesink, S.J. Picken, A.J. Witteveen,
W.J. Mijs, Macromol. Chem. Phys. 1996, 197, 1031.
"Shish kebab-like chirality"
H. Engelkamp, C.F. vanNostrum, S.J. Picken,
R.J.M. Nolte, Chem.Comms. 1998, 9, 979.
"Molecular conformation of a polyaramid
in nematic solution from small angle neutron scattering and comparison
with theory."
S.J. Picken, L. Noirez, G.R. Luckhurst,
to be published J.Chem.Phys.
List of posters and talks:
"Ordeningsverschijnselen in polymeersystemen", S.J. Picken, lecture for "Contactgroep Theoretisch-Fysisch-Chemische Aspecten van Oplossingen van Macromoleculen en Collöidiale Deeltjes en Grenslagen", R.U.U., Utrecht, 2-5-1986."Rheological properties of aramid solutions: transient flow and rheo-optical measurements", H.L. Doppert; S.J. Picken, poster for "Conference on Liquid Crystal Polymers", Bordeaux F, 24/28-7-1987.
"Rheological properties of aramid solutions: transient flow and rheo-optical measurements", H.L. Doppert; S.J. Picken, poster at the "Vloeibare-Kristallendag", AMOLF, Amsterdam, 23-11-1987.
"Orientational order in aramid solutions", S.J. Picken; J. Aerts; M.G. Northolt, poster for the "SRS users meeting", Daresbury UK, 11-8-1988.
"Phase Transitions and Rheology of Aramid Solutions", S.J. Picken, poster for the "The Twelfth International Liquid Crystal Conference", Freiburg BRD, 15/19-8-1988.
"Onderzoek bij Akzo aan Vloeibaar-Kristallijne Polymeren" S.J. Picken, lecture for the "Vloeibare-Kristallendag", Philips, Eindhoven, 8-10-1988.
"Orientational order in Aramid Solutions", S. J. Picken, lezing for the "Stichting TOP Opleiding Polymeren", Veldhoven, 23-06-1989.
"Rheology of Aromatic Polyamide Solutions", S.J. Picken, lecture for the "Nederlandse Reologische vereniging", Rhenen, 8-7-1989.
"Structure and Rheology of Aramid Solutions", S.J. Picken; J.Aerts; A.J. Reuvers; H.L. Doppert; M.G. Northolt, poster for the "Vloeibare- Kristallendag", Leuven 8-12-1989.
"Structure and Rheology of Aramid Solutions", S.J. Picken; J.Aerts; A.J. Reuvers; H.L. Doppert; M.G. Northolt, lecture for the "Polymer Processing Society", Nice, 17/20-4-1990.
"Moleculaire en macroscopische oriëntatie-orde in Aramide oplossingen", S.J. Picken, lecture for the "KNCV sectie Macromoleculen", DSM Research, Geleen, 1-6-1990.
"Structure and Rheology of Aramid Solutions", S.J. Picken; J. Aerts; A.J. Reuvers; H.L. Doppert; M.G. Northolt, poster for the "KNAW workshop Ordering in Supramolecular Fluids", Amsterdam, 24/26-10-1990.
"Molecular and macroscopic orientational order in aramid solutions: a model to predict the modulus of aramid yarns", S.J. Picken; S. van der Zwaag; M.G. Northolt, poster for the "Polymer Physics Conference", Bristol 2/4-4-1991.
"Structure and rheology of aramid solutions: relation to the aramid fibre modulus." S.J. Picken, M.G. Northolt, S. van der Zwaag lecture for the Polymer processing society, Palermo, September 1991. Published in "Processing and properties of liquid crystalline polymers and LCP based blends." D. Acierno, F.P. la Mantia eds., Chemtec Publishing, 1993 Ontario, Canada.
"A simple mechanism to explain the band formation phenomenon upon cessation of flow in polymer liquid crystals.", S.J. Picken, P. Moldenaers, S. Berghmans, J. Mewis. lecture for "The XIth international conference on rheology", Brussel 17-21/8 1992. Published in Proc. XIth International congres on rheology, R. Keunings & P. Moldenaers eds., Elsevier, Amsterdam 1992.
"Orientational order in aramid solutions." S.J. Picken, lecture for the National ACS meeting, Denver CO, 28-3/2-4-1993. Published in Pol. Prepr. 1993.
"Some physical aspects of side-chain liquid crystal polymers", lecture at University of Southampton , Southampton 6-6-1994. Also given at Philips Natuurkundig Laboratorium, Eindhoven 21-6-1994, Delft Technical University, Delft 10-11-1994, FOM Institute for Atomic and Molecular Physics, Amsterdam 12-12-1994.
"Deuterium NMR studies of director orientation kinetics in aramid solutions.", J.R. Hughes, G.R. Luckhurst, S.J. Picken, poster at the 15th International Liquid Crystal Conference, Budapest 3-6/8-6- 1994.
"Measurement of the domain growth kinetics in multidomain nematic liquid crystal polymers by means of the worm-like path model for multiple scattering." , S.J. Picken, R.J. van Wijk, J.W.Th. Lichtenbelt, J.B. Westerink, P.J. van Klink, poster at the 15th International Liquid Crystal Conference, Budapest 3-6/8-6-1994. Also presented at the Gordon Conference on Polymer Physics, Newport RI 1-8/5-8-1994.
"A deuterium NMR investigation of local
orientation and director kinetics in aramid solutions."
S.M. Fan, G.R. Luckhurst, S.J. Picken,
poster at the 15th International Liquid Crystal Conference, Budapest 3-6/8-6-1994.
"Some physical aspects of side-chain liquid crystal polymers.", Martin Luther Universitat, Halle 1995, Gorleaus Laboratoria, Leiden 3-11-1995, Technical University Twente, Enschede 15-11-1995.
"Ultimate properties of polymers via orientational order." S.J. Picken, lecture for the TOP opleiding polymeren, Utrecht 15-3 -1996.
"Polarising microscopy of liquid crystals." S.J. Picken, lecture for the course "Microscopy of polymers" Technical University Twente, Enschede 22-4-1996.
"Contrast matched SANS measurements on aramid solutions." S.J. Picken, L. Noirez, G.R. Luckhurst, poster presented at the 16th ILCC, Kent State OH, 24 - 28 june 1996.
"A simple mechanism to explain the band formation phenomenon upon cessation of flow in polymer liquid crystals.", S.J. Picken, P. Moldenaers, S. Berghmans, J. Mewis, lecture for the European Network Meeting on "Dynamics of Liquid Crystals", Southampton 27-9-‘96.
"Measurement of the domain growth kinetics in multidomain nematic liquid crystal polymers by means of the worm-like path model for multiple scattering." , S.J. Picken, R.J. van Wijk, J.W.Th. Lichtenbelt, J.B. Westerink, P.J. van Klink, lecture for "Sectie photonica NNV", Arnhem 29-11-’98.
"Applications of side chain liquid crystal polymers." S.J. Picken, lecture for the PPM meeting, Amerfoort 6-11-1997.
"Neutron scattering studies on PPTA solutions." S.J. Picken, L.Noirez, G.R. Luckhurst , invited lecture for the "Tables Rondes", Lab.Leon Brillouin Saclay FR, 1-12-97
"Enkele design overwegingen voor organische zonnecellen." S.J.Picken, lecture for the KNCV Zomercongres, Ede 28-8-‘98
"Molecular conformation of a polyaramid in nematic solution from small angle neutron scattering and comparison with theory." S.J. Picken, L.Noirez, G.R. Luckhurst , poster to be shown at the NVNV meeting, Ede 2-11-’98
"Liquid crystal polymer optics." S.J. Picken,
lecture to be given at the Holst-symposium, TU Eindhoven, 19-11-‘98
Patents
"Erasable, bit by bit rewritable medium for optical data storage."E. van Andel, S.J. Picken, NL 9001699
"Preparation of twisted nematic film and
a display device comprising said film."
S.J. Picken, G.R. Möhlmann, NL 9200666,
EP 93200951.7
"Bereiding meeralagige nematische polymeerfilm
en visuele weergave."
S.J. Picken, NL 9200667
"Homeotropically ordered liquid crystalline
polymer film with dichroic dye."
S.J. Picken, NL 9300147, EP 94200065.4
"Retardation layer having thin glass substrates."
M. Bosma, S.J. Picken, J.W. Venema, G.R.
Möhlmann, EP 94202734.3
"Human readable rewritable recording medium."
E. de Haan, S.J. Picken, R.J. van Wijk,
G.R. Möhlmann, EP 94200676.8
"Retardation layer having dispersion adapted
to the active liquid crystal cell."
M. Bosma, J.W. Venema, S.J. Picken, G.R.
Möhlmann, WO 95/09379
"Temperature matched retardation layer."
P.P. de Wit, S.J. Picken, A. Steenbergen,
M. Bosma, EP 95203567.3
"Temperature matched crosslinked retardation
layer."
P.P. de Wit, A. Steenbergen, S.J. Picken,
M. Bosma, EP 96201247.2
"Homeotropically aligned device comprising
liquid crystalline material."
S.J. Picken, C.J.M. Arts, P.P. de Wit,
J.W. Hofstraat, EP xxxxx
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