. Author manuscript; available in PMC: 2023 Jan 1.

Published in final edited form as: Adv Mater. 2021 Oct 13;34(1):e2105196. doi: 10.1002/adma.202105196

Table 1.

Physicochemical and thermal properties of cellulose^a, silk fibroin and chitin^b

Materials	X_c, %	T_g, °C	T_m, °C	T_d, °C	σ, GPa	E, GPa	ε, %	U_T, MJ m⁻³	Ref
Cellulose	43-88	200-250	260-270	260	0.1-2^b 0.7-17^c	1-13^b 58-270^d	0.2-27	0.1-17	^{[8, 9, 10]}
Silk fibroin (Bombyx mori)	30-34	200-220	257-337	250-260	0.5-0.7^b	5-23^b	15-35	70-150	^{[11, 12, 13]}
Chitin	57-83	170-236	N/A	230-330	0.1-0.3^b 1.6-3^c	2.5-10^b 40-60^d	0.3-21	1.9-10	^{[10, 14]}

X_c: degree of crystallinity; T_g: glass transition temperature; T_m: melting temperature; T_d, decomposition temperature; σ: tensile strength; E: Young’s modulus; ε: elongation at break, U_T: toughness.

: values measured from cellulose/chitin materials from different sources;

: values measured from bulk materials;

: theoretical values;

: values measured from the crystalline region of the materials or highly crystalline materials