التفاصيل البيبلوغرافية
| العنوان: |
Preparation of hybrid particles via surface-initiated polymerization from thiol-functionalized attapulgite and their application in polycarbonate as an efficient processing modifier. |
| المؤلفون: |
Yang, Haicun, Cai, Zinan, Li, Runfei, Ma, Wenzhong, cao, Zheng, Gong, Fanghong, Tao, Guoliang, Liu, Chunlin |
| المصدر: |
Composite Interfaces; Oct 2021, Vol. 28 Issue 10, p979-995, 17p |
| مصطلحات موضوعية: |
POLYMERIZATION, FULLER'S earth, POLYCARBONATES, GLASS transition temperature, ELEMENTAL analysis |
| مستخلص: |
In this work, the thiolized attapulgite (ATP-MTS) particles were prepared by the dealcoholation between hydroxyl and γ-mercaptopropyltrimethoxysilane (MTS). Then, based on the 'grafting from' mechanism, the surface-initiated graft polymerization was carried out to give ATP grafted with polymethyl methacrylate hybrid particles (ATP@PMMA). The grafting process was characterized in detail by FTIR, TGA, XRD, XPS, TEM and elemental analysis. The effects of the main polymerization conditions on the grafting ratio were investigated in detail. Finally, polycarbonate (PC) was modified with ATP@PMMA to investigate the effects of hybrid particles on the processability of nanocomposites. The results showed that ATP@PMMA particles with a maximum graft ratio of 23.3% were prepared successfully within 5 h. The optimum polymerization temperature was 60°C, and the ratio of MMA/SH/AIBN was 500/2/1. The surface tailoring improved the dispersion of ATP@PMMA in the matrix. Compared with the pristine PC, the incorporation of ATP@PMMA enhanced the melt flow index (MFI), while reduced the glass transition temperature (Tg) and complex viscosity of nanocomposites. [ABSTRACT FROM AUTHOR] |
|
Copyright of Composite Interfaces is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
