DMAP	Dimethylaminopyridine
BTEAC	Benzyltriethylammonium chloride
BADGE	Bisphenol A diglycidyl ether
DB	DMAP-lignin epoxide/ BADGE
BB	BTEAC-lignin epoxide/BADGE
FRPs	Fiber-reinforced plastics
Mn	Number-average molecular weight
Mw	Weight-average molecular weight
Ɖ	Molecular weight distribution
ECH	Epichlorohydrin
DMSO	Dimethyl sulfoxide
TETA	Triethylene teramine
DMF	Dimethyl formamide
BDDGE	Butanediol diglycidyl ether
N2	Nitrogen
PTFE	Polytetrafluoroethylene
FTIR	Fourier transform infrared spectroscopy
1H NMR	1H nuclear magnetic resonance
p-NBD	p-Nitrobenzaldehyde
GPC	Gel permeation chromatography
PMMA	Polymethyl methacrylate
DMA	Dynamic mechanical analysis
E’	Storage modulus
E’’	Loss modulus
Tg	Glass transition temperature
ρ	Crosslink density
Tα	1st Phase transition temperature
Tβ	2nd Phase transition temperatures
G	Guaiacyl
S	Syringyl
DB80	DMAP-lignin epoxide/ BADGE (DB) with DMAP-lignin epoxide replacement of 80 wt% BADGE, while the other samples are named accordingly based on the weight percentage of lignin epoxide.
BB80	BTEAC -lignin epoxide/ BADGE (BB) with BTEAC -lignin epoxide replacement of 80 wt% BADGE, while the other samples are named accordingly based on the weight percentage of lignin epoxide.