Ultrasonic Detection of the Interface Formation between the Polymer-Rich and Monomer-Rich Phases during Bulk Polymerization of Methyl Methacrylate

Mori, Naoki; Matsumoto, Akikazu; Suzuki, Yasuhito

doi:https://doi.org/10.1021/acs.macromol.5c00268

Ultrasonic Detection of the Interface Formation between the Polymer-Rich and Monomer-Rich Phases during Bulk Polymerization of Methyl Methacrylate

Mori, Naoki; Matsumoto, Akikazu; Suzuki, Yasuhito

Macromolecules, 2025, 58(9), 4699-4707

アクセス数:149件（2025-09-07 18:56 集計）

固定URL: https://hdl.handle.net/11094/101435

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タイトル	Ultrasonic Detection of the Interface Formation between the Polymer-Rich and Monomer-Rich Phases during Bulk Polymerization of Methyl Methacrylate
著者	NRID 1000000802092 1000000802092 ORCID 0000-0002-0707-3443 0000-0002-0707-3443 researchmap permalink 7000020478 7000020478 Scopus Author ID 57790540700 57790540700 著者名 Mori, Naoki
	NRID 1000000183616 1000000183616 著者名 Matsumoto, Akikazu
	NRID 1000050822590 1000050822590 著者名 Suzuki, Yasuhito
内容	This document is the Accepted Manuscript version of a Published Work that appeared in final form in Macromolecules, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.macromol.5c00268
抄録	Polymeric materials are essential for a wide range of applications; however, understanding and controlling their reactive processing, especially in the later stages, remains challenging. One notable phenomenon in the polymerization of methyl methacrylate (MMA) via bulk radical polymerization is the Trommsdorff effect; this effect causes a rapid acceleration in the reaction rate, and its mechanism remains debatable. In this study, we investigated MMA polymerization by integrating ultrasonic monitoring, temperature tracking, and video recording. This approach enabled the observation of the formation of a polymer-rich phase and the propagation of the polymerization front. Contrary to the assumption that MMA undergoes homogeneous polymerization, our results revealed macroscopic heterogeneity during its transition from the liquid to the glassy state. The polymerization process can be categorized into six distinct stages based on its response to ultrasonic propagation. These results fundamentally enhance our understanding of bulk polymerization.
出版者	American Chemical Society
収録物名	Macromolecules
巻(号)	58(9)
ページ	4699-4707
刊行年月	2025-05-13
言語	英語
ハンドルURL	https://hdl.handle.net/11094/101435
PISSN	00249297
eISSN	15205835
関連情報 (isVersionOf)	DOI (出版社版) https://doi.org/10.1021/acs.macromol.5c00268
アクセス権	embargoed access
権利情報	The full-text file will be made open to the public on 13 May 2026 in accordance with the publisher's policy.
出版タイプ	Accepted Manuscript
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Macromolecules. 2025, 58(9), p. 4699-4707
DC.title	Ultrasonic Detection of the Interface Formation between the Polymer-Rich and Monomer-Rich Phases during Bulk Polymerization of Methyl Methacrylate
DC.creator	Mori, Naoki
	Matsumoto, Akikazu
	Suzuki, Yasuhito
DC.publisher	American Chemical Society
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2025-05-13
DC.identifier	https://doi.org/10.1021/acs.macromol.5c00268
DC.description	This document is the Accepted Manuscript version of a Published Work that appeared in final form in Macromolecules, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.macromol.5c00268
DCTERMS.abstract	Polymeric materials are essential for a wide range of applications; however, understanding and controlling their reactive processing, especially in the later stages, remains challenging. One notable phenomenon in the polymerization of methyl methacrylate (MMA) via bulk radical polymerization is the Trommsdorff effect; this effect causes a rapid acceleration in the reaction rate, and its mechanism remains debatable. In this study, we investigated MMA polymerization by integrating ultrasonic monitoring, temperature tracking, and video recording. This approach enabled the observation of the formation of a polymer-rich phase and the propagation of the polymerization front. Contrary to the assumption that MMA undergoes homogeneous polymerization, our results revealed macroscopic heterogeneity during its transition from the liquid to the glassy state. The polymerization process can be categorized into six distinct stages based on its response to ultrasonic propagation. These results fundamentally enhance our understanding of bulk polymerization.
DC.rights	The full-text file will be made open to the public on 13 May 2026 in accordance with the publisher's policy.
DC.format	101435
citation_title	Ultrasonic Detection of the Interface Formation between the Polymer-Rich and Monomer-Rich Phases during Bulk Polymerization of Methyl Methacrylate
citation_author	Mori, Naoki
	Matsumoto, Akikazu
	Suzuki, Yasuhito
citation_publisher	American Chemical Society
citation_language	英語
citation_date	2025-05-13
citation_journal_title	Macromolecules
citation_volume	58
citation_issue	9
citation_firstpage	4699
citation_lastpage	4707
citation_doi	https://doi.org/10.1021/acs.macromol.5c00268
citation_public_url	https://hdl.handle.net/11094/101435

Ultrasonic Detection of the Interface Formation between the Polymer-Rich and Monomer-Rich Phases during Bulk Polymerization of Methyl Methacrylate

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