FIBROUS CELLULOSE, DISPERSION AND SHEET
To provide a microfibrous cellulose that is less prone to discoloration even under a high-temperature environment.SOLUTION: This invention relates to a fibrous cellulose that has a fiber width of 1000 nm or less and includes a substituent represented by the formula (11). The amount of introduction o...
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Zusammenfassung: | To provide a microfibrous cellulose that is less prone to discoloration even under a high-temperature environment.SOLUTION: This invention relates to a fibrous cellulose that has a fiber width of 1000 nm or less and includes a substituent represented by the formula (11). The amount of introduction of an ionic substituent other than the substituent represented by the formula (11) is less than 0.50 mmol/g. In the formula (11), R1 and R2 each denote a hydrogen atom, a saturated-linear hydrocarbon group, saturated-branched hydrocarbon group, a saturated-cyclic hydrocarbon group, an unsaturated-linear hydrocarbon group, an unsaturated-branched hydrocarbon group, an unsaturated-cyclic hydrocarbon group, an aromatic group, or a group derived from any of them.SELECTED DRAWING: None
【課題】本発明は、高温環境下においても着色変化が少ない微細繊維状セルロースを提供することを課題とする。【解決手段】本発明は繊維幅が1000nm以下であり、下記式(11)で表される置換基を有する繊維状セルロースであって、式(11)で表される置換基以外のイオン性置換基の導入量が0.50mmol/g未満である繊維状セルロースに関する。JPEG2022157194000009.jpg49145上記式(11)中、R1及びR2は、各々、水素原子、飽和-直鎖状炭化水素基、飽和-分岐鎖状炭化水素基、飽和-環状炭化水素基、不飽和-直鎖状炭化水素基、不飽和-分岐鎖状炭化水素基、不飽和-環状炭化水素基、芳香族基、又はこれらの誘導基である。【選択図】なし |
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