POLYMERS Vol.72 No.6
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COVER STORY
Elucidation of Polymerization Reactions and Efforts to Precisely Control Structures
It is difficult to understand or clarify polymerization reactions due to their ambiguous steps and intermediates. However, with the advances in analytical methods, ideas about initiation, propagation, and termination reactions have started to become clearer. For example, the structure of both termini has been clarified, and the shape of a single molecule has been confirmed through direct visualization. These advances led to re-reporting of previously accepted theories on the polymerization reaction mechanisms. Herein, this issue focuses on the polymerization reactions that have now been clarified and places emphasis on research for the precise design of materials that are able to start a polymerization due to the mechanism elucidation. In particular, we will try to introduce new polymerization techniques to synthesize new polymers with precisely controlled architectures, such as new polymerization reactions, monomer sequence polymerization, and new elucidations of polymerization reactions.
Editors: T. NISHIMURA, ISHIWARI, KAMIKAWA, and NISHINA

Digest for English Readers
258

Hot Topics in Polymer Science in SPSJ
261
Awards for Encouragement of Research in Polymer Science; The Society of Polymer Science, Japan 2021

Commentary
Toward the Future of Precision Polymerization Toyoji KAKUCHI
262

COVER STORY: Highlight Reviews
Rapid Synthesis of Middle-Size Biomolecules Comprising of a Repeating Structure Yasuhito KOYAMA
263
Advances in Polymerization of Aromatic Acetylenes Tsuyoshi TANIGUCHI, Tatsuya NISHIMURA, Katsuhiro MAEDA
267
Organic Synthesis of Medium Molecules: Electrochemical Amide Bond Formations Yohei OKADA
271

PolyMANGA
275

COVER STORY: Topics and Products
Simultaneous Control of Molecular Weights and Stereo-Strctures by Degenerative Chain-Transfer Cationic Polymerizations Mineto UCHIYAMA
276
Design of Photocatalysts for Polymer Synthesis Using Visible-Light as External Stimulus Akiko INAGAKI
278
One-Pot Synthesis of Sequence-Controlled Oligosiloxanes Kazuhiro MATSUMOTO
280

Polymer Science and I: A Personal Account
Number of Moves Keiji MURAYAMA
282

Messages: “Work and Life”
Life is an Experiment Takafumi UENO
283

Front-Line Polymer Science
Multicomponent Supramolecular Nanobiomaterials Sayuri L. HIGASHI, Masato IKEDA
284

Material Technologies from Industries
Precision, Long-Chain DNA Synthesis is a Key Technology for Realizing the Bioeconomy Naoki MIYAMOTO, Kenji TSUGE
288

Messages from SPSJ
290
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