Premium
Preparation of Photo‐Crosslinking Starch Colloidal Particles
Author(s) -
Zhang Rongli,
Chu Fangwen,
Hu Yunqin,
Hu Huiling,
Hu Yulong,
Liu Huan,
Huo Chaofei,
Wang Hao
Publication year - 2020
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.201900175
Subject(s) - copolymer , starch , ultraviolet , materials science , scanning electron microscope , cinnamic acid , colloid , polymer chemistry , catalysis , fourier transform infrared spectroscopy , spectroscopy , infrared spectroscopy , chemical engineering , nuclear chemistry , chemistry , polymer , organic chemistry , composite material , engineering , physics , optoelectronics , quantum mechanics
A photo‐crosslinking cinnamic acid‐modified starch (CA‐St) copolymer is synthesized through an esterification reaction using 4‐dimethylaminopyridine and 1‐(3‐dimethylaminopropyl)‐3‐ethylcarbodiimide as catalysts. The structure of the CA‐St is confirmed by 1 H nuclear magnetic resonance and infrared spectroscopy. Using the nanoprecipitation method, the photo‐crosslinking CA‐St copolymer is aggregated into colloidal particles (CPs). The formation process and photo‐crosslinking of CA‐St CPs are evaluated in terms of size distribution, and ultraviolet and visible spectrophotometry. The scanning electron microscopy shows that the CA‐St CPs comprise spherical particles with a diameter of approximately 410 nm. This type of photo‐crosslinking CP has potential applications in nano‐ and biotechnology fields.