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

Number of Access:123（2025-08-14 15:06 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/101435

Link to primary information 

File Format Terms of use Size Views Date.Available Description information
Macromolecules_58_9_4699 pdf None 5.28 MB   2026.05.13  

Item Information

Output File Export EndNote Basic Export Mendeley

Title
Ultrasonic Detection of the Interface Formation between the Polymer-Rich and Monomer-Rich Phases during Bulk Polymerization of Methyl Methacrylate
Creator
NRID
1000000802092 1000000802092
ORCID
0000-0002-0707-3443 0000-0002-0707-3443
researchmap permalink
7000020478 7000020478
Scopus Author ID
57790540700 57790540700
CreatorName
Mori, Naoki
NRID
1000000183616 1000000183616
CreatorName
Matsumoto, Akikazu
NRID
1000050822590 1000050822590
CreatorName
Suzuki, Yasuhito
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
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.
Publisher
American Chemical Society
Source Title
Macromolecules
Volume (Issue)
58(9)
Page
4699-4707
Date of Issued
2025-05-13
Language
English
Handle URL
https://hdl.handle.net/11094/101435
PISSN
00249297
eISSN
15205835
Relation.isVersionOf
DOI (Publisher Version)
https://doi.org/10.1021/acs.macromol.5c00268
Access Rights
embargoed access
CopyRight
The full-text file will be made open to the public on 13 May 2026 in accordance with the publisher's policy.
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article