| POLYMERS Vol.58 No.6 |
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COVER STORY Safety and Deliverance |
| Polymer Science and I: A Personal Account |
| My Research Concept | Michiko KAYA |
| <Abstract>I note here my research concept derived from own scientific experience. In order to find new meanings, I have always searched novel understandings on results obtained from experiments. Now, the novel understandings take root me as my research concept. |
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| COVER STORY: Highlight Reviews |
| High Modulus & High Strength Polymers | Takashi NISHINO |
| <Abstract>Ultimate
tensile strength, Young’s modulus, toughness of polymers were discussed
from the view points of safe and security. Nowadays, these mechanical
properties of polymers are found to be superior to those of metals and
ceramics. Further reduction of structural defect will be expected for
making good things better. Keywords: Mechanical Properties / High Modulus / High Strength / Toughness / Crystal Modulus / Ultimate Strength / Body Armor |
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| Earthquake Protection Materials - Reviews and
Future Directions of Elastomeric Isolators |
Nobuo MUROTA |
| <Abstract>The
base-isolation technology to moderate earthquake forces transmitted to
structures has been widely developed, providing widespread use of variable
seismic isolation systems for earthquake protection. Elastomeric isolators
play an integral role in seismic isolation systems. In this report, recent
developments and future directions of the elastomeric isolators are discussed
through concrete examples. Keywords: Base Isolation / Rubber Bearing / Earthquake / Seismic Protection |
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| The Allergen Inactivation Technology by Polymeric Materials | Taro SUZUKI |
| <Abstract>In
recent years, indoor allergens have been pointed out to be important
sources of perennial rhinitis, atopic dermatitis, and asthma. In this
paper, the author describes the allergen inactivation technology using
enzymes and phenolic polymers that successfully exclude allergens from
the living environment. Keywords: Allergen / Inactivation / Enzyme / Phenol |
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| Fibrous Metal Ion Adsorbent Synthesized by Radiation Processing | Masao TAMADA |
| <Abstract>Graft
polymerization is a radiation processing which can impart a desired functional
group into a trunk polymer. When a nonwoven fabric is selected as the
trunk polymer of the graft polymerization, a fibrous metal adsorbent
can be synthesized. The resulting fibrous adsorbent realizes extremely
high flow rate in the metal ion adsorption. The present paper describes
the characteristic of the fibrous adsorbent and the applications to removal
of toxic metals and collection of useful metals. Keywords: Radiation Processing / Graft Polymerization / Fibrous Metal Adsorbent / Nonwoven Fabric / High Flow Rate / Removal of Toxic Metals / Collection of Useful Metals |
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| Evaluation of Safety and Biocompatibility of
Medical Devices and Their Materials |
Ryusuke NAKAOKA and Toshie TSUCHIYA |
| <Abstract>Before
utilizing medical devices, evaluating their safety is indispensable.
When polymers are utilized for the medical devices, not only themselves
but also their components such as monomers, catalysts and additives must
be evaluated to estimate their safety as well as their biocompatibility
by appropriate methods. Various studies on cell-polymer interaction provide
valuable information to develop the safety and biocompatibility of materials
utilized for medical devices. Keywords: Medical Devices / Safety / Biocompatibility / Cell-Polymer Interaction / Cytotoxicity / Genotoxicity / ISO |
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| COVER STORY: Topics and Products |
| Long Lasting Insecticidal Net for Malaria Control | Yoshinori SHONO |
| <Abstract>Long
lasting insecticidal net (LLIN) is an essential tool for malaria control.
Olyset® Net is the first LLIN recommended by WHO. It consists of a polyethylene
fiber incorporating permethrin. Olyset® Net has made great contribution
to fight against malaria. Keywords: Long Lasting Insecticidal Net / LLIN / Pyrethroid / Malaria / Mosquito / Olyset / Polyethylene |
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| Plagenom System | Kiyoshi YASUNO |
| <Abstract>A
new system for the detection of product’s records of plastic materials
is described. Keywords: Genuineness / Traceability |
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| A Friction Decreasing Material for Constructional Application | Koichi OKAMOTO |
| <Abstract>Friction
decreasing material for constructional application; FDMC mainly consist
of cross-linked polymers, enabling it to absorb water and form hydrogels.
The gel form in FDMC mediates a friction decrease between soil and applied
constructional structures, providing the high level of lubrication performance.
A wide variety of constructional systems with FDMC have been developed
to address safety issues through the high lubrication performance. Keywords: Civil Engineering / Frictional Decrease / Gel / Friction Angle / Lubrication / Safety / Construction |
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| Front-Line Polymer Science |
| Development of Monomers Contributing to Useful
Applications to Functional Materials |
Takeshi ENDO and Atsushi SUDO |
| <Abstract>Molecular
design of new monomers is the important core of development of new functional
materials. Several cyclic monomers such as amino acid N-carboxyanhydride
(NCA), 1,3-benzoxazine, and some specific lactones are becoming essential
monomers in the fields of biomaterials, aerospace materials, and high
performance adhesives for electronics, respectively. Molecular designs
of these monomers, their practical synthetic processes, and the current
status as well as the future prospect of their applications to functional
materials are demonstrated herein. Keywords: Molecular Design of Monomers / Functional Materials / Practical Applications |
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| Copyright(C) 2009 The Society of Polymer Science, Japan All Rights Reserved. |