| 高分子 Vol.61 No.11 |
| >> Japanese | >> English |
特集 高分子反応の新展開 －精密制御から材料設計まで－
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| 展望 COVER STORY: Highlight Reviews |
| Photoinitiated Click Reactions for the Creation of Spatially Defined Materials | Daigo MIYAJIMA, Masahito MURAI and Craig Jon HAWKER |
| ＜要旨＞ Photoinitiated
click reactions possess significant advantages over traditional click
reactions as they allow for spatial and temporal control. This enables
the formation of patterned or gradient surfaces with specific substrates,
controlled attachment of biological entities, etc.. In this minireview,
we highlight the latest progress on photoinitiated click chemistry and
demonstrate
the future potential of this emerging area. Keywords: Click Chemistry / Patterning / Photochemistry / Thiol-Ene / CuAAC / Polymer Chemistry / Materials Synthesis |
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| 分解性を有する架橋・硬化ポリマーの合成と応用 Synthesis and Application of Crosslinked Polymers with Degradable Property |
白井 正充 Masamitsu SHIRAI |
| ＜要旨＞ 架橋・硬化ポリマーは、優れた機械的強度や高耐熱性を有する材料であり、従来から広く使われている。このような材料に分解性を付与すると、これまでとは違った新しい材料設計が可能になる。本稿では、分解性を有する架橋・硬化ポリマーの設計・合成と材料としての応用について、最近の研究を紹介する。 Keywords: Multifunctional Monomer / Crosslinked-Polymer / Degradation / Environmentally Friendly Materials / Reworkable Materials / Self-Healing |
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| 多糖類水酸基の選択的誘導体化による機能発現 Functionalization of Polysaccharides through Selective Derivatization |
大西 敦・柴田 徹 Atsushi OHNISHI, Tohru SHIBATA |
| ＜要旨＞ セルロースなどの多糖類は古くから人類に利用されてきた天然由来材料であるが、近年、多糖水酸基誘導体化技術の進展により新たな機能性が見出され注目されている。高分子化合物であり、かつ3官能性のセルロース類の反応の概観および一例としてキラル識別機能について、新たな機能性付与の方法および効果を解説する。 Keywords: Cellulose / Amylose / Regioselective / Substitution / Functionalyzation / Chiral Stationary Phase |
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| トピックス COVER STORY: Topics and Products |
| 鎖末端にクリック反応性官能基を有する高分子の精密合成と機能性高分子への応用 Precise Synthesis of Polymers End-Functionalized with Clickable Functional Groups and Their Application to Preparation of Functional Polymers |
覚知 豊次・渕瀬 啓太 Toyoji KAKUCHI, Keita FUCHISE |
| ＜要旨＞ The
combination of controlled/living polymerizations and click reactions
has realized the synthesis of polymers with various structures. Our group
has developed precise synthesis methods for polyester, polyether, poly(n-hexyl
isocyanate), and polyacrylamides end-functionalized with clickable functional
groups, such as an azido group, an ethynyl group, and so on. The end-functionalized
poly(N-isopropylacrylamide) and its block copolymer have been applied
to development of functional polymers. Keywords: Controlled/Living Polymerization / Click Reaction / End-Functionalized Polymers / Polyesters / Polyethers / Poly(n-hexyl isocyanate) / Polyacrylamides / Thermoresponsive Polymers |
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| 高分子間クリック反応と高分子内クリップ反応を用いる多環トポロジー高分子の合成 Intermolecular Click and Intramolecular Clip Process for Constructing Multicyclic Polymer Topologies |
菅井 直人・手塚 育志 Naoto SUGAI, Yasuyuki TEZUKA |
| ＜要旨＞ Cyclic
and multicyclic polymers have gained increasing attention due to their
unique functions arisen from their topology effects. In this account,
a new synthetic protocol to construct complex multicyclic polymer topologies
is outlined by employing intermolecular
click and intramolecular clip process using a variety of cyclic or multicyclic
precursors having prescribed functional groups. A variety of complex
polymer topologies has been constructed, including bridge- and spiro-
as well as fused-type tricyclic or tetracyclic forms with programmed
folding structures. Keywords: Cyclic Polymer / Topological Polymer Chemistry / Click Chemistry / Olefin Metathesis / Electrostatic Self-Assembly and Covalent Fixation |
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| TCNE-アルキン付加反応に基づく新規芳香族系高分子の合成と光電子機能の評価 Click Synthesis and Optoelectronic Properties of Novel Aromatic Polymers |
道信 剛志 Tsuyoshi MICHINOBU |
| ＜要旨＞ p-Type
semiconducting polymers were post-functionalized by the click chemistry-type
addition reaction between electron-rich alkynes and acceptor molecules.
For example, the addition of tetracyanoethylene (TCNE) to aromatic polyamines
bearing electron-rich
alkynes formed donor-acceptor chromophores with low energy charge-transfer
bands. Electrochemistry measurements revealed that the polymer energy
levels decreased as more TCNE were added. The thin film
transistors of these polymers were fabricated, and it was demonstrated
that there is a clear correlation between the polymer energy levels and
hole mobilities. Keywords: Click Chemistry / Donor-Acceptor Systems / Charge-Transfer / Aromatic Polymers / Electrochemistry / Mobility / Thin Film Transistor |
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| 高分子反応を利用したエンプラへの感光性付与：反応現像画像形成法 Addition of Photosensitivity to Engineering Plastics Utilizing Polymer Reaction: Reaction Development Patterning |
大山 俊幸 Toshiyuki OYAMA |
| ＜要旨＞ Conventional
photosensitive polymides (PSPIs) have disadvantages such as necessity
of high temperature post-curing after pattern formation due to their
use of polyimide precursors, poly(amic acid)s, as polymer components.
We have developed a novel mechanism, reaction development patterning
(RDP), to give photosensitivity to polyimides and other engineering
plastics. Pattern formation by RDP is based on selective change in solubility
of engineering plastics at photo-irradiated (or unirradiated) areas by
nucleophilic acyl substitution between carboxylic-acid derivatives in
a polymer chain
and nucleophiles in a developer during development process. Thus, RDP-based
PSPIs are obtained from polyimides themselves, and pattern formation
from polycarbonates and polyesters is also achieved by papplying RDP
to these polymers. Keywords: Photosensitive Polyimide / Photosensitive Engineering Plastics / Nucleophilic Acyl Substitution / Diazonaphthoquinone / Development by Alkaline Solution |
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| 高分子反応の設計に基づく易解体性接着材料の開発 Development of Dismantlable Adhesion Materials Based on Design of Polymer Reactions |
松本 章一 Akikazu MATSUMOTO |
| ＜要旨＞ We
have demonstrated the validity of a new type of pressure-sensitive adhesion
system using block copolymers containing the low glass transition poly(2-ethylhexyl
acrylate) or poly(n-butyl
acrylate) segment and the reactive poly(tert-butyl acrylate) (PtBA) segment
in the presence of a photoacid generator. This adhesion system can be
easily debonded due to a change
in the polymer properties of the adhesives by acid-catalyzed deprotection
uniquely occurring during the photoirradiation followed by postbaking.
The block copolymers with a well-defined molecular structure were synthesized by living radical polymerization, such as atom transfer radical polymerization and organotellurium-mediated living radical polymerization and their adhesive properties were evaluated using the 180・peel test. A drastic change in the adhesive strength of the block copolymers was observed in response to the dual external stimuli consisting of UV irradiation and the subsequent heating. Keywords: Block Copolymer / Controlled Polymerization / Deprotection / Dismantalble Adhesion / Living Radical Polymerization / Photoacid Generator / Polyacrylate / Pressure-Sensitve Adhesive |
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| 高分子科学最近の進歩 Front-Line Polymer Science |
| 無機高分子の新展開：無機元素ブロック高分子材料へ Development of Inorganic Polymers: To Inorganic-Element-Block Polymers |
中 建介 Kensuke NAKA |
＜要旨＞ Thanks
to meet organic-inorganic polymer hybrids with recent development of
nano-sized inorganic blocks, single component polymer hybrids or matrix-free
nanocomposites have been proposed. This kind of materials is regarded
as “Inorganic-element-block polymers”, which is an extended concept
of “organic-inorganic hybrid polymers”. This review describes recent
development of the Inorganic-element-block polymers, mainly focusing
on the synthesis
of polyhedral oligosilsesquioxane
derivatives and their solid-state properties. Examples of inorganic
nanoparticle hybrids are also introduced. |
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| グローイングポリマー Polymer Science and I: A Personal Account |
| プロの研究者として As a Professional Researcher |
平井 智康 Tomoyasu HIRAI |
| ＜要旨＞ I would like to contribute substantially to the society, on the basis of my skills and the knowledge that I have gained. |
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| Copyright(C) 2012 The Society of Polymer Science, Japan All Rights Reserved. |