MF Gr.（Organic
& Polymer Materials）
Dept. of Chemistry & Biology,
National Institute of Technology (KOSEN), Fukui College
2024.04.16 Up-dated
News：
☺ Our English site
has been opened.（2022.04.10）
About Us：We
study & develop organic polymer materials
that response to stimuli, and that
adapt to environmental conditions. We use both simple molecular designs and
green reactions as much as we can.
We also research degradation behavior of
organic polymer materials, believing to solve problems about plastic
wastes.
【Students, please join us!】
We
welcome ALL students who will start working, or who
will continue studying in a university or the advanced engineering course,
after graduation.
Check-list is shown here! How many “Yes” do you have?
1.□ I’m interested in environmental problems,（※） 2.□ organic chemistry, 3.□ and/or polymer chemistry.
4.□ I want to synthesize novel organic compounds, 5.□ and/or evaluate properties of them.
6.□ Academic activities 7.□ and/or chemical engineering
approaches are attractive for me.
※ We believe that our study & research contributes to solve
environmental problems, especially plastic-waste problems.
【Keywords】
Stimuli-responsible,
Environmental-adaptable,
UV curing,
Disulfide
(SS) bond, Equilibrium reaction,
Dismantlable adhesive,
Adhesive for
dissimilar materials, Plastic waste.
Members（& Themes）：
Advanced Engineering Course
1ES Okada
(Mimic molecular structures)
1ES Matsui
(All-round UV adhesives)
Dept. of Chemistry & Biology
5C Esaki
(Materials for Japanese paper)
5C Takashima
(Dismantlable UV adhesives)
A photo on Apr. 12th, 2024. Title: Aiming to heart-en somebodies!
「古谷 昌研 究室 超絶 謙虚 (Furutani Masa-ken kyushitsu
tyouzetsu kenkyo)」means that MF Gr. will face things & people with
great modesty.
Study & Research：
(1) Organic polymer materials that response to stimuli
Photo-adhesive materials “dismantled”
with gentle heating and small stress …Adhesives
have contributed to lightening of industrial products. Especially,
photo-adhesives play an important role in industry, because they enable to
adhere in a short time, without heat, at a local area where UV-light is
irradiated. However, dismantlement of the adhesive layer is quite difficult,
which disturbs re-use & re-cycle activities. To overcome this situation, we
have proposed a novel dismantlable photo-adhesive material utilizing exchange
reactions of disulfide (SS) bonds. Using the adhesive at room temperature, SS
bonds in the adhesive layer work as covalent bond, leading to keep the adhesive
strength high. On the other hand, heating at 100 degree C after use, SS bonds
exchange dynamically, resulting in dismantlement of the adhesive layer with
small stress. Adhesive residues on the adherents would be used for the
re-adhesion process with gentle heating.
Adsorbents “colored” by
adding heavy-metal cations …Removal
technology of pollutants from water & air is indispensable for our
healthful lives or sustainable society in future. We fabricate UV-cured
materials including SS bonds with a high density, and evaluate their adsorbing
property toward pollutants. Strong interaction between SS bonds and heavy-metal
cations (or harmful proteins) will be expected on the material surface.
Coloring or opacification of the materials is observed in the adsorbing
process, which would be applied to a pollutant-sensor as well as an adsorbent.
(2) Organic polymer materials that adapt to environmental conditions
Photo-adhesive materials “adapting with equilibrium reactions” toward any surfaces …The importance of
(photo-)adhesives is mentioned above. Furthermore, industrial products are now
manufactured in combination of various kinds of materials, and adhesives for
dissimilar materials have been desired and developed. We have proposed to
introducing chemical structures that cause equilibrium reactions (e.g. 2-mercaptopyridyl group), into side
chains of polymers in the adhesive layer. These chemical structures are changed
by their chemical environment such as polarity, which would lead to maximize the
interaction between an adherent and the adhesive layer. As a result, high
adhesive strength would be obtained with any adherents.
(3) Degradation
behavior of organic polymer materials
Research on degradation factors of
plastic wastes …Recently, micro-plastics (MPs) have paid
much attention as one of disturbing pollutants. Plastic wastes are exposed to
stimuli such as light, heat & external force etc. in natural environment,
resulting in deterioration & fragmentation of the material to generate MPs.
However, details of the processes are not clear. We evaluate both mechanical
& chemical properties of plastic products & wastes, to consider the
main factor & its action mechanism for MPs’
generation.
Equipment：
Force
tester（A&D Co., Ltd.，MCT-2150）
UV-LED（CCS Inc.，EFICET 8332C，AC8366-365，AC8312C，Wavelength:
365 nm (monochromatic)，〜1 W/cm2@Φ12 mm & W.D. 30 mm）
UV-light
source（Analytik Jena Ltd.，3UVTM-36UVLamp，Wavelength: 254, 302 or 365 nm）
Photo-meter（Ushio Inc.，UIT-250 with UVD-C365 or UVD-C254）
UV-light meter（MOTHERTOOL Co.,Ltd.，UV-340A，290〜390 nm，〜19,990 mW/cm2）
Applicator（TESTER SANGYO Co,.Ltd.，SA-201）
Digimatic micrometer（Mitutoyo Corporation，MDQ-30MX，Min. scale：0.001 mm，Measurable
range：0〜30 mm）
Manual
microtome（KENIS Ltd.，THK）
Glass plate
cutter（OM Laboratory, TAISEI KAKO Co., Ltd.）
Bench-top
centrifuge（TOMY SEIKO Co., Ltd.，LCX-200，Max. 4500 rpm）
Automatic
oven（AS ONE Cooperation，EO-450V，Max. heating temp.：300℃）
Hot-magnet
stirrer（IKA® Japan K. K.，C-mag
HS7 digital，Max. surface temp.：500℃）
Hot plate（AS ONE Cooperation，HHP-140D，Max. surface temp.：250℃）
Pencil-hardness
tester（SATO SHO-JI Corporation，MJ-PHT，6B to 9H）
Contact
angle meter（Excimer Inc.，SImage Entry 6，using water or an organic solvent）
Water
quality meter（DKK-TOA Corporation，MM-42DP，for pH・EC・ORP measurements）
Ultraviolet-visible
spectrophotometer（UV-Vis，Agilent
Technologies Japan, Ltd.，Cary60）
Digital dry
desiccator（TAIYO CANPANY Co., Ltd.，TDD-S600CPC，15〜40%RH@25℃
± 5%RH）
Cool
incubator（IKUTA sangyo Co.,
Ltd.，A0601-2V，5〜60℃ ± 1℃，two
chambers，independent control）
Micro-scope（KENIS Ltd.，UM05）
Gel
permeation chromatograph（GPC，BUS，Nihon Waters K.K.，Breeze QS System，carrier solv.: DMF with LiBr (10 mM)，M 〜4,000,000）
Thermogravimetric
differential thermal analyzer（TG-DTA，BUS，Rigaku Corporation，Thermo plus EVO II TG8120）
Differential
scanning calorimeter（DSC，BUS，Rigaku Corporation，Thermo plus EVO II
DSC8230）
Nuclear
magnetic resonance apparatus（NMR，BUS，Bruker Corporation，AVANCEIII 400 MHz）
Fourier
transform infrared spectrophotometer（FT-IR（Transmission or Attenuated-total-reflection mode），BUS，PerkinElmer Inc.，Spectrum100）
Hot stage
system（BUS，Mettler-Toledo
International Inc.，HS82）
Quartz
crystal microbalance（QCM，BUS，SEIKO EG & G Co., Ltd.，QCM922A（main），CN-40A（cool
incubator））
Gas
chromatograph-mass spectrometer（GC-MS，BUS，SHIMADZU Corporation，GC-17A with GCMS-QP5050）
Nanoindentation
tester（Dept. of Mechanical Engineering，ELIONIX INC.，ENT-1100a）
Electrospray/Atmospheric-pressure
chemical ionization mass spectrometer（ESI/APCI-MS，E. Matsui Lab.，SCIEX，API2000）
Matrix
assisted laser desorption/ionization time-of-flight mass spectrometer（MALDI-TOF-MS，E. Matsui Lab.，Bruker Corporation，MicroflexLRF）
Ultraviolet-visible
spectrophotometer（UV-Vis，E.
Matsui Lab.，Hitachi High-Tech Science Corporation，U-0080D）
Latest Achievements：
(1) Paper
Masahiro Furutani,
Keiji Washida, Tomoki Hata, Daichi Uchida, Chisato
Sakamoto, “Adsorption Property of UV-cured Films
Containing Disulfide Bonds in Water,” Mater. Technol. 2023, 41(6), 42-48.
Masahiro Furutani,
Taishi Ichihashi, Tomoya Kataoka, “Measurements of
Chemical and Mechanical Properties for Polyethylene Plastic Shopping Bags - a
Comparison between Brand-new and Waste Ones,” Research Reports of National Institute of Technology,
Fukui College, Natural Science and Engineering 2023, 56(2), 1-7.
(2)
Proceeding
Masahiro Furutani1,
Daiki Fujihira2, Kaoru Endo2, Koji Arimitsu2, “Fabrication of Photo-adhesive Materials Utilizing Chemical
Properties of 2-Mercaptopyridyl Groups,” Proc. RadTech Asia 2022 2022, Article No. S3-04 (2
pages). 1NIT,
Fukui College, 2Tokyo
Univ. Sci.
(3)
Presentation
International Chemical Engineering Symposia 2023
(IChES2023) (Mar. 15th, 2023
@Tokyo Univ. Agric. Technol.)
Molecular design of dipyridyl disulfide cross-linkers
for a versatile photo-adhesive materials (PA140)
Ritsuto
Senkyo, Masahiro Furutani
Chemical and mechanical analyses of brand-new and
waste samples of polyethylene plastic shopping bags for understanding the
deterioration behavior (PA148)
Masahiro Furutani1,
Taishi Ichihashi1, Tomoya
Kataoka2 1NIT,
Fukui College, 2Ehime
Univ.
Access：New Bldg. of Dept. of
Chemistry & Biology, 2F (laboratory & staff room) MAP
Staff Profile：Masahiro
FURUTANI, Ph. D in Eng. Associate
Professor
Birth …Sakai City,
Fukui Pref., JAPAN
Univ. …Dept. of
Pure & Applied Chemistry, Tokyo Univ. of Science
Degree …Ph. D in
Engineering, Tokyo Univ.
Thesis：Development of
Functional Molecules Based on Interaction of Amino Acid Side Chains with Group
11 Metals
（アミノ酸側鎖と第11族金属の相互作用に依拠した機能性分子の開発）
Study
field …Organic material chemistry, Polymer chemistry
Academic
activity …SPSJ (The Society of Polymer Science, Japan), CSJ (The
Chemical Society of Japan),
The
Adhesion Society of Japan, JRIMT (Japan Research Institute of Material
Technology), ACS (American Chemical Society),
SCEJ
(The Society of Chemical Engineers, Japan), JACT (The Japan Association for
College of Technology),
SFST
(The Society of Fiber Science and Technology, Japan)
Motto …Good
fortune is unpredictable, and ill fortune is changeable. Live with modesty.
Dream …To create
fantastic (chemical) tools for a blue raccoon-dog-type cat-type robot,
before September 3rd, 2112.
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2020-2024 MF Gr., Dept. of Chemistry & Biology, NIT, Fukui College All
Rights Reserved.