Premium
Designing Starch‐Based Nanospheres to Make Hydrogels with High Mechanical Strength
Author(s) -
Tan Ying,
Wang Pixin,
Xu Kun,
Li Wenbo,
An Huiyong,
Li Linglu,
Liu Chang,
Dong Lisong
Publication year - 2009
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200900182
Subject(s) - self healing hydrogels , materials science , starch , acrylamide , mechanical strength , polyacrylamide , shell (structure) , composite material , chemical engineering , copolymer , polymer chemistry , polymer , organic chemistry , chemistry , engineering
Abstract A robust method to prepare hydrogels with high mechanical strength is presented. Core/shell nanospheres with derivatizable allyl groups in the shell were first prepared. Starch‐based nanospheres were used as crosslinker to prepare polyacrylamide hydrogels. The starch‐based nanospheres were bridged by acrylamide to form crosslink points in the hydrogel network. They possess an extremely high mechanical strength. The results show that starch‐based nanosphere hydrogels can sustain strengths of 10.34 MPa, which is 60 times greater than for a normal hydrogel. The mechanical properties of SNH can be tailored by varying the content of SN. This approach offered a new way of making functional hydrogel with biodegradable component as a substitute for tissue.