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RAFT Terminated Hyperbranched Functionalized Nano Rice Husk Powder / EPDM Nanocomposite for Biomedical Applications
Polymer-Plastics Technology and Materials ( IF 2.6 ) Pub Date : 2020-07-16 , DOI: 10.1080/25740881.2020.1784218
Heba Kandil 1 , Eslam R. El-Sawy 2 , Hanem M. Awad 3 , Doaa E.El. Nashar 1 , Amal Amin 1
Affiliation  

ABSTRACT

Modified nanosize rice husk powder (i.e. mod.nRHP; mod.nRHP-MA-RAFT-H)/ethylene propylene diene monomer (EPDM) nanocomposite was prepared by solvent casting method. The surface of nano rice husk (n-RHP) was treated with maleic anhydride (MA) to yield n-RHP-MA, then, aliphatic hyperbranched polyester (H) was end capped with RAFT agent to obtain H-RAFT. Afterward, H-RAFT-was successfully anchored onto nRHP-MA via RAFT polymerization technique to afford nRHP-MA-RAFT-H (mod.nRHP). The mechanical and thermal properties were studied for nRHP-MA-RAFT-H (mod.nRHP)/EPDM nanocomposite with different loadings of mod.nRHP. The cytotoxicity activities of the prepared mod.nRHP/EPDM nanocomposites were investigated toward human cell lines in vitro.



中文翻译:

RAFT端接的超支化功能化纳米稻壳粉/ EPDM纳米复合材料,用于生物医学应用

摘要

通过溶剂流延法制备了改性的纳米稻壳粉(即mod.nRHP; mod.nRHP-MA-RAFT-H)/乙烯丙烯二烯单体(EPDM)纳米复合材料。用马来酸酐(MA)处理纳米稻壳(n-RHP)表面,得到n-RHP-MA,然后用RAFT剂封端脂族超支化聚酯(H),得到H-RAFT。之后,通过RAFT聚合技术成功地将H-RAFT-锚定在nRHP-MA上,得到nRHP-MA-RAFT-H(型号nRHP)。研究了nRHP-MA-RAFT-H(mod.nRHP)/ EPDM纳米复合材料的机械性能和热性能,其中nPHP的加载量不同。研究了制备的mod.nRHP / EPDM纳米复合材料对人细胞系的细胞毒性活性。

更新日期:2020-07-16
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