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Volumes 72-83 (2023)
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Volume 83
Pages 1-258 (December 2023)
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Volume 82
Pages 1-204 (November 2023)
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Volume 81
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Volume 80
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Volume 79
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Volume 78
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Volume 77
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Volume 76
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Volume 75
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Volume 74
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Volume 73
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Volume 72
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Volume 83
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Volumes 60-71 (2022)
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Volume 71
Pages 1-108 (December 2022)
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Volume 70
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Volume 69
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Volume 68
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Volume 67
Pages 1-102 (August 2022)
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Volume 66
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Volume 65
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Volume 64
Pages 1-186 (May 2022)
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Volume 63
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Volume 62
Pages 1-104 (March 2022)
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Volume 61
Pages 1-120 (February 2022)
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Volume 60
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Volume 71
- Volumes 54-59 (2021)
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- Volume 1 (2003)
• Poly(amide imide) powder was wet-milled in an attritor at various milling conditions.
• Polymer powder median diameter was reduced from 21 to 3 μm after 7-h milling.
• After milling the as-received suspension was stable.
The milling behavior of poly(amide imide), which serves as a prototypical hydrophilic high-performance polymer with a high glass transition temperature, was investigated. Various milling conditions (milling times up to 7 h, stirrer tip speeds of 3.4–4.9 m/s, and mass concentrations of 5–20%) were tested, and particle sizes as low as d50,3 ∼ 3 μm were obtained. The milling was performed at 11 °C in an attritor. Differential scanning calorimetry and thermogravimetric analysis were performed before and after milling to investigate the effect of milling on the glass transition temperature and on the decomposition behavior of the polymer. The suspension obtained after milling was observed to be stable without the addition of stabilizers or the adjustment of the pH value, and no negative effect of milling on the polymer properties was observed. The attritor technique proved to be an adequate and efficient milling tool for the production of micrometer-sized high-performance polymer suspensions.