期刊
JOURNAL OF MATERIALS SCIENCE
卷 53, 期 6, 页码 4103-4117出版社
SPRINGER
DOI: 10.1007/s10853-017-1864-1
关键词
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资金
- New Materials Research Key Program of Tianjin [16ZXCLGX00090]
- National Key Research and Development Program of China [2016YFB0303000]
- State Key Laboratory of Separation Membranes and Membrane Processes
A series of novel poly(hexadecyl acrylate)-grafted-graphene oxides (PHDA-g-GOs) were fabricated as thermo-responsive GO nanosheets via diazonium addition and surface-initiated atom transfer radical polymerization (SI-ATRP). Various spectroscopic and microscopic evidences confirm the successful fabrication of the thermo-responsive GO nanosheets. The thermo-responsive property and thermal stability of the PHDA-g-GOs were determined by DSC and TGA. Furthermore, we have demonstrated the ability to systematically tune the chain length of polymer molecules covalently bonded to GO nanosheets by SI-ATRP. Comparing the thermo-responsive GO samples, the a dagger H (m) and a dagger H (c) increased as the molar ratio of monomer to initiator increased. Moreover, the T (mo), T (co), a dagger H (m) and a dagger H (c) values of the PHDA-g-GO3 (with a molar ratio of monomer to initiator as 1000:1) are 31.2, 31.4 A degrees C, 79 and 76 J/g, respectively. Meanwhile, the thermo-responsive GO nanosheets have good thermal stability and shape stability. Therefore, the thermo-responsive GO nanosheet is a very promising functional material and can be used in more areas, such as the fabrication of temperature-sensitive drugs, reagents, fibers and textiles, solar energy storage and temperature sensor.
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