文献类型：期刊文献

英文题名：Novel Temperature-Responsive Rosin-Derived Supramolecular Hydrogels Constructed by New Semicircular Aggregates

作者：Zhai, Zhaolan[1,2,3,4,5] Ye, Shengfeng[1,2,3,4,5] Song, Zhanqian[1,2,3,4,5] Shang, Shibin[1,2,3,4,5] Song, Jie[6]

第一作者：Zhai, Zhaolan

通信作者：Zhai, ZL[1];Zhai, ZL[2];Zhai, ZL[3];Zhai, ZL[4];Zhai, ZL[5]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China;[2]Coinnovat Ctr Efficient Proc & Utilizat Forest Re, Nanjing 210042, Jiangsu, Peoples R China;[3]Key Lab Biomass Energy & Mat Jiangsu Prov, Nanjing 210042, Jiangsu, Peoples R China;[4]Natl Forestry & Grassland Adm, Key Lab Chem Engn Forest Prod, Nanjing 210042, Jiangsu, Peoples R China;[5]Natl Engn Lab Biomass Chem Utilizat, Nanjing 210042, Jiangsu, Peoples R China;[6]Univ Michigan, Dept Nat Sci, Flint, MI 48502 USA

年份：2022

卷号：70

期号：7

起止页码：2280-2289

外文期刊名：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY

收录：;EI(收录号：20220811689786);Scopus(收录号：2-s2.0-85124871034);WOS:【SCI-EXPANDED(收录号:WOS:000766213900021)】；

基金：This research was financially supported by grants from the National Natural Science Foundation of China, China (32001268), the Fundamental Research Foundation of the Central Commonwealth Institute of the Chinese Academy of Forestry (CAFYBB2018QC002) and the Basic Scientific Research Foundation of Jiangsu Province Biomass Energy and Materials Laboratory (JSBEM-S-202003).

语种：英文

外文关键词：supramolecular hydrogels; temperature responsiveness; semicircular aggregates; worm-like micelles; rosin

摘要：A highly water-soluble rosin-based surfactant (C-14-MPA-Na) was synthesized. Novel temperature-responsive supramolecular hydrogels were further prepared using C-14-MPA-Na. The microstructure and the mechanical properties of the hydrogels were investigated. Unexpectedly, instead of the long one-dimensional structure, a new kind of twisted semicircular aggregate was formed in the hydrogels, which was rarely reported. Besides, the hydrogels possessed excellent shear-recovery properties. Upon heating to 40 degrees C, the hydrogels transformed into viscoelastic solutions, which were constructed by worm-like micelles. By adjusting the temperature, the hydrogels and the viscoelastic solutions could be freely transformed. Nuclear magnetic resonance spectroscopy and Fourier transform infrared spectroscopy were used to further explore the possible self-assembly mechanism of C-14-MPA-Na. The curved alkane chain which partially overlapped with rosin's rigid skeleton became stretched when heated to 40 degrees C. The introduction of the rosin rigid skeleton endowed the supramolecular hydrogels with a novel microstructure and contributed to the development of strategies for the utilization of forest resources.