高分子学会九州支部外国人講演会のご案内
この度、池谷コンファレンスに招待講演のため Dr. Adam Pron（CEA, Grenoble, France）,
Prof. Nguyen Duc Nghia and Dr. Ngo Trinh Tung (Academy of Science and Technology (VAST),Hanoi, Vietnam) 以上三氏が来日されます。この機会に九州工業大学ひびきのキャンパスにお招きし、下記の通り講演会を開催することになりました。皆様には万障お繰り合わせの上、ご来聴くださいますようご案内申し上げます。

記

1. 講演会テーマ：新規導電性高分子の合成と電子デバイスへの応用に関する国際コロキューム
2. 日時：2008 年 10 月 24 日（金）14：00－17：00

3.場所：九州工業大学大学院生命体工学研究科

２階端末演習室２

4. プログラム
14:00-14:45 Prof. Nguyen Duc Nghia
Recent Research and Development of Nanochemistry in Vietnam Academy of Scienceand Technology (VAST)
14:45-15:30 Dr. Ngo Trinh Tung
Preparation of conducting polymer by chemical vapor deposition method and its
application in Fabrication of Light Emitting Diode (LED)
15:45-16:45 Dr. Adam Pron
Molecular composites of functionalized polythiophenes and semiconductor nanocrystals:
synthesis, spectroscopic, electrochemical and photovoltaic properties
16:45-17:30 Prof. Wataru Takashima
Unique functionality in electrochemical actuator consisted of conducting polymers
以上

18:00 – 20:00
Mixer with snacks and drinks
Organizer,
Prof. Keiichi Kaneto
LSSE, Kyushu Institute of Technology,
Kaneto@life.kyutech.ac.jp, watakashi@life.kyutech.ac.jp

Recent Research and Development of Nanochemistry in Vietnam Academy of
Science and Technology (VAST)
Prof. Nguyen Duc Nghia
In this presentation, firstly a short review of VAST as well as the Institute ofChemistry and their main research activity are introduced. In the second part, someresults on the research of nano-structured conducting polymer and polymer
nanocomposite are presented. The researches are concentrating on the two polymer
system-PANi/Clay and PANi/Fe2O3.NiO. Detail of the preparation processes and theproperties of PANi/clay and PANi/Fe2O3.NiO polymer nanocomposite have beenreported and discussed. Besides, the preparation of silver nanoparticle and its application
have been also investigated. Some effects of the kind of the reducer and surfactant on theformation of silver nanoparticles are discussed.

Preparation of conducting polymer by chemical vapor deposition method and its
application in Fabrication of Light Emitting Diode (LED)Dr. Ngo Trinh Tung
It was demonstrated that poly(p-phenylenevinylene) (PPV) and the its copolymers
consisting of p-phenylenevinylene (PV) and p-phenyleneethylene (PE) units could beprepared by the chemical vapor deposition (CVD) method. It is interesting to note thatthe copolymer was synthesized from a single monomer, p-(methoxymethyl)benzyl
chloride via the CVD method method. The composition of the copolymers can be varied
by altering the monomer activation temperature; the higher the temperature, the lower thecontent of the PV units becomes. The sufficient incorporation of the PE units into thepoly(p-phenylenevinylene) backbone caused a significant blue shift in bothphotoluminescence and electroluminescence. The luminescence properties of thecopolymer strongly depend on the amount of the PE units incorporated. The external
quantum efficiency of the electroluminescence devices having the configuration of
ITO/PEDOT-PSS/copolymer/Al-Li increased as the content of the PV units increased in
the copolymer, which can be ascribed to the improved confinent of excitons.

Molecular composites of functionalized polythiophenes and semiconductor
nanocrystals: Synthesis, Spectroscopic, Electrochemical and Photovoltaic properties
J. De Girolamo, P. Reiss and A. Pron
Institut des Nanosciences et Cryogénie, SPrAM, Laboratoire d’Electronique Moléculaire
Organique et Hybride, CEA Grenoble, 17 rue des Martyrs, 38054 – Grenoble – cedex9FranceMalgorzata Zagorska
Faculty of Chemistry, Warsaw University of Technology, 00 664 Warsaw,
Noakowskiego 3 Poland
Composites of semiconductor nanocrystals and conjugated polymers constitute a newclass of inorganic/organic materials with a large variety of potential applications inhybrid electronics and electrochemical devices. However the processing of thesematerials is difficult because of a strong tendency of both components to phase separate.
We report, for the first time, the molecular recognition assisted processing of thesecomposites. To assure this molecular level processing, regioregular poly(hexylthiophene)
was functionalized with diaminopyrimidine and monodisperse CdSe nanocrystals of few
nm size were complexed with mercaptohexylthymine. The molecular recognition
between both composite components was assured by three complementary hydrogenbonds as schematically depicted below.

The applied processing strategy is very general and can be applied in different
modifications (casting, layer by layer (LbL) deposition etc) yielding materials of different
morphologies: composites with uniform distribution of nanocrystals, gradient composites,
interpenetrating network-type composites, multilayered composites and others. Detailed
spectroscopic, electrochemical and spectroelectrochemical investigations show thatstrong interactions between the composite components modify their HOMO and LUMO
levels, however their alignment remains appropriate for several molecular electronics
applications, including photovoltaic cells.

Unique functionality in electrochemical actuator consisted of conducting polymers
W. Takashima1 and K. Kaneto2
1
Research Center for Advanced Eco-fitting Technology,
2
Graduate School of Life Science and Systems Engineering,Kyushu Institute of Technology, 2-4 Hibikino, Kitakyushu, Fukuoka, JAPANMechanical functionality has recently been developed in conducting polymers.
Electrochemical soft actuator is the most hot-topic utilizing for this functionality. There
still exist several unique phenomena, which will follow clarifying mechanisms of theactuation in those electroactive films.
Loading effect on electroactive film was found to modulate their redox activity as
well as their actuation. This is a sort of feedback functionality for electrochemical softactuator. We demonstrated that the load application to the film modified the CV
characteristics. The load causes an ad-hoc stretching of the film, by which Yong’s
modulus along to the load may temporary increase, resulting to reduce the actuation
response.
Mechanically induced current, a phenomenological counterpart of electrochemicalactuation, was observed in polypyrrole (PPy) films. The induced current was found to
well correlate both to the load intensity and to the concentration of mobile ion in PPy
films. A two-electrode type device was fabricated and demonstrated in its load sensingfunctionality. Increase of surface polarity as well as introducing electrolyte having highdiffusion coefficient clearly increased the current magnitude. This can be utilized as aforce sensor and as a power generation film.
Actuation response was also investigated as a function of the frequency ofsinusoidal electrochemical potential. It was found that both of the stroke magnitude as
well as the phase delay (tan δ) of electrochemical actuation displays a clear dispersion atthe same frequency zone. This represents the electrochemical actuation is one of theviscoelastic response of the polymer film as a function of electrochemical stimuli, which
will open a new frontier.