An object of the present invention is to provide a β-1,3-glucan derivative which is a polymer having β-1,3-glucan as a main chain, and has thermoplasticity and excellent moldability, and a preparation method thereof. That is, the present invention provides a β-1,3-glucan derivative having a structure represented by General Formula (1) as a main chain.
(In Formula (1), each of a plurality of R
1
s independently represents a hydrogen atom or —COR
2
, n represents an integer of 1 or greater, and R
2
represents an aliphatic hydrocarbon group or an aromatic hydrocarbon group. In Formula (1), a plurality of the R
1
s may be the same as or different from each other, and at least a part of a plurality of the R
1
s is —COR
2
.)
本发明的目的是提供一种β-1,3-
葡聚糖衍
生物,其作为主链具有β-1,3-
葡聚糖,并具有热塑性和优异的可塑性,以及其制备方法。也就是说,本发明提供了一种以通式(1)表示结构的β-1,3-
葡聚糖衍
生物作为主链。(在公式(1)中,多个R1独立地表示氢原子或-COR2,n表示大于等于1的整数,而R2表示脂肪烃基或
芳香烃基。在公式(1)中,多个R1可以相同或不同,而多个R1中的至少一部分是-COR2。)