Thermal analysis

YT Yuya Tachibana
SD Sunita Darbe
SH Senri Hayashi
AK Alina Kudasheva
HM Haruna Misawa
YS Yuka Shibata
KK Ken-ichi Kasuya
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The thermal stability was determined using a thermogravimetric analyzer (DT-60H Thermogravimetry Analyzer; Shimadzu Co., Ltd., Kyoto, Japan), whereby the powder sample (8.0 mg) without additional drying process was heated to 350 °C under compressed air flow in an open aluminum pan at a rate of 20 °C min−1. Double the mass of Al2O3 was used as the reference sample. The water content was calculated from the weight loss below 120 °C. The glass-transition temperature (Tg) was determined by differential scanning calorimetry (DSC-8500; PerkinElmer Japan Co., Ltd., Yokohama, Japan). The powder sample (5.9 mg) was dried in a vacuum oven for 2 h and was heated to 220 °C under N2 at a rate of 20 °C min−1.

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