高分子　Vol.58　No.11

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特集　元素と高分子

グローイングポリマー　Polymer Science and I: A Personal Account

天然物合成からソフトマテリアルへ Movement from Natural Products to Soft Materials

小山　靖人 Yasuhito KOYAMA

＜要旨＞My research is focused on effective synthetic methods for highly complicated architectures exploiting kinetically stabilized species such as enediyne, ortho-quinol, and nitrile N-oxides. This synthetic approach enabled me to achieve the practical conversion into high performance materials without catalysts, byproducts, in addition to solvents, emphasizing the advantage in a viewpoint of green chemistry.

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研究テーマとの出会い An Encounter with Research Theme

坂井　信支 Nobuji SAKAI

＜要旨＞According to my personal interests, I encountered with current research theme. I changed my impression of that after I actually tried.

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展望　COVER STORY: Highlight Reviews

リン原子を含む機能性材料の構築 Design and Synthesis of Phosphorus Containing π-Conjugated Materials

三治敬信・田中正人 Takanobu SANJI and Masato TANAKA

＜要旨＞リン原子が導入されるとπ共役系は構造的また電子的に大きな影響を受ける。またリン原子の化学的修飾によってπ共役系の電子状態は大きく変化する。このためリン原子を含む共役高分子が注目を集めている。ここでは，機能性材料を目指したリン原子を含むπ共役系の最近の研究例について紹介する。 Keywords: Elements Science / Phosphorus / Phosphole / π-conjugated Polymer

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金属錯体の特異な光物性とOLED への応用 Photo-Physics and Electroluminescence Characteristics of Organic Metal Complexes

安達千波矢・遠藤礼隆 Chihaya ADACHI and Ayataka ENDO

＜要旨＞有機LED（OLED）の発光層に用いられる有機金属錯体の光物性およびEL特性について紹介するとともに，新しいEL発光機構の可能性について示す。スズ（IV）-ポルフィリン錯体（SnF2（OEP））は，熱活性化遅延蛍光を示し，光励起下および電流励起下において，570 nm付近に蛍光および遅延蛍光を，また，700 nm付近にリン光を示し，温度上昇とともに遅延蛍光の強度が著しく増大する特性を示す。OLEDには，未だ未開拓な発光機構の可能性がある。 Keywords: OLED, Electroluminescence / Sn4+-Porphyrin / Thermally Activated Delayed Fluorescence (TADF) / Organic Metal Complexes

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オリゴチオフェン系のエレクトロニクス応用 Electronics Application of Oligothiophene Derivatives

安蘇　芳雄 Yoshio ASO

＜要旨＞オリゴチオフェンは有機半導体として最も頻繁に使用されるπ共役系であり，有望な光物性・電子物性・酸化還元特性・分子間相互作用のために有機エレクトロニクスや分子エレクトロニクスの活性物質として適している。本稿では，エレクトロニクスへの応用の観点から，オリゴチオフェン系有機半導体のいくつかの新しい流れに焦点を絞って概説する。 Keywords: Oligothiophene / Organic Semiconductor / Organic Electronics / Molecular Electronics / Molecular Wire / Dendrimer

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フルカラー発光性シリコン高分子 Full-Visible-Spectrum Emitters from Soluble Si-Si Bonded Network Polymers

藤木道也 Michiya FUJIKI

＜要旨＞鎖状有機ポリシランは熱分解により炭化ケイ素を与えることが知られている。これに対し，ネットワーク状有機ポリシリンは熱分解条件（温度・時間）・酸素濃度の制御により，二次元Si面がSi-O-Si構造でインターカレートした階層構造に変化してフルカラー発光性を示すとともに，酸素不在下では微結晶シリコンとなることが見いだされた。 Keywords: Silicon / Pyrolysis / Photoluminescence / Amorphous / Safety

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トピックス　COVER STORY: Topics and Products

光硬化反応に用いられる含硫黄機能材料 Sulfur-Containing Functional Materials for Photo-Curing Reaction

室伏　克己 Katsumi MUROFUSHI

＜要旨＞Thiol compounds including sulfur can be used as curing accelerator of photo-curing reactions. In this study, we report that the secondarization of thiol group solves the stability problem of the composite and has many additional advantages for photo-curing processes such as stability problem of the composite double bonds and improved adhesion strength. Keywords: Thiol Compound / Sulfur / Photo-Curing / Secondarization / Double Bond / Adhesion Strength

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ボラジン系高分子材料の開発 Development of Borazine Polymers

内丸　祐子 Yuko UCHIMARU

＜要旨＞Borazine polymers were synthesized by hydrosilylation, hydroboration, and dehydrogenative coupling polymerizations. The resulting borazine-siloxane polymer was used as low-k dielectric thin film. Other borazine polymers were examined as preceramics materials. Keywords: Boron / Borazine / Hydroboration, Hydrosilylation / Thin Film / Pyrolysis / Low-k

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ポリホスファゼンを基盤とした機能材料 Functional Materials Based on Polyphosphazenes

井上　賢三 Kenzo INOUE

＜要旨＞Polyphosphazenes are a unique class of inorganic-organic materials that possess a wide spectrum of properties according to the nature of functional groups linked to the phosphorus atoms. The expanding application research of polyphosphazenes is described. Keywords: Polyphosphazene / Photonic Materials / Battery Electrolytes / Fuel Cell Membranes / Superhydrophobic Materials

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シルセスキオキサン・シリコーンレジン Silsesquioxanes or Silicone Resins

伊藤　真樹 Maki ITOH

＜要旨＞Synthesis, structural characteristics, properties, and applications of silsesquioxanes or silicone resins are briefly summarized. Based on the cyclotetra- and cyclopentasiloxane ring structures, these materials have the potential of creating new functions via novel structures. Keywords: Silsesquioxane / Silicone resin / Cage / Hybrid

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有機ホウ素系電解質のイオニクスと新展開 Recent Development in Ionics of Organoboron Electrolytes

松見　紀佳 Noriyoshi MATSUMI

＜要旨＞A variety of organoboron electrolytes including organoboron anion receptors or highly dissociable lithium salt structures were developed. These electrolytes generally show significantly improved lithium transference numbers in comparison with conventional polyethers or ionic liquids. Novel organoboron ion-gel electrolytes were also recently developed in order to improve the nonflammable property of electrolytes. Keywords: Lithium Ion Battery / Solid Polymer Electrolytes / Ionic Liquids / Anion Receptor / Dissociable Lithium Salts / Organic-Inorganic Polymer Hybrid

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MRI 造影機能をもつガドリニウム配位高分子 Gadolinium Coordination Polymer Having MRI Visibility

栗田　朋香 Tomoka KURITA

＜要旨＞The polymer which linked to a gadolinium complex was designed to obtain visibility sufficient under magnetic resonance imaging (MRI). The MR-visible devices coated with the gadolinium based polymer will contribute to the development of MR-guided surgery. Keywords: MRI / Gadolinium / Complex / Coating / Medical Device

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高分子科学最近の進歩　Front-Line Polymer Science

主鎖の関与する反応性高分子 Reactive Polymers for Main Chain-Chemical Transformation

冨田　育義 Ikuyoshi TOMITA

＜要旨＞Reactive polymers are important synthetic precursors for diverse functional materials. Incorporation of the reactive functions into the main chain of the polymers enables a unique macromolecular design such as the degradation of the polymer chains, the insertion of another polymer segments leading to the formation of block copolymers, the scrambling of the sequence in between the plural polymers, and the transformation of the functional groups of the main chain. Especially, reactions of organometallic polymers possessing reactive metallacycles allow us to prepare π-conjugated polymers with unique main chain structures and those with various elements. Diversity-oriented syntheses of functional π-conjugated polymers by the main chain-reactive polymers are also described. Keywords: Reactive Polymers / Organometallic Polymers / Polymer Reactions / Main Chain / Functional Polymers / Elements Chemistry / Diversity-Oriented Synthesis

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