Preparation of Uniform-Sized and Dual Stimuli-Responsive Microspheres of Poly(N-Isopropylacrylamide)/Poly(Acrylic acid) with Semi-IPN Structure by One-Step Method
文献类型：期刊论文
| 作者 | Lai, En-Ping1,2; Wang, Yu-Xia2; Wei, Yi2; Li, Guang1 |
| 刊名 | POLYMERS
 |
| 出版日期 | 2016-03-01 |
| 卷号 | 8期号:3页码:1 |
| 关键词 | uniform microspheres premix membrane emulsification semi-interpenetrating polymer network (semi-IPN) poly(N-isopropylacrylamide) (PNIPAM) stimuli-responsive |
| ISSN号 | 2073-4360 |
| 英文摘要 | A novel strategy was developed to synthesize uniform semi-interpenetrating polymer network (semi-IPN) microspheres by premix membrane emulsification combined with one-step polymerization. Synthesized poly(acrylic acid) (PAAc) polymer chains were added prior to the inner water phase, which contained N-isopropylacrylamide (NIPAM) monomer, N,N '-methylene bisacrylamide (MBA) cross-linker, and ammonium persulfate (APS) initiator. The mixtures were pressed through a microporous membrane to form a uniform water-in-oil emulsion. By crosslinking the NIPAM in a PAAc-containing solution, microspheres with temperature- and pH-responsive properties were fabricated. The semi-IPN structure and morphology of the microspheres were confirmed by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The average diameter of the obtained microspheres was approximately 6.5 mu m, with Span values of less than 1. Stimuli-responsive behaviors of the microspheres were studied by the cloud-point method. The results demonstrated that semi-IPN microspheres could respond independently to both pH and temperature changes. After storing in a PBS solution (pH 7.0) at 4 degrees C for 6 months, the semi-IPN microspheres remained stable without a change in morphology or particle size. This study demonstrated a promising method for controlling the synthesis of semi-IPN structure microspheres with a uniform size and multiple functionalities. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Polymer Science |
| 研究领域[WOS] | Polymer Science |
| 关键词[WOS] | INTERPENETRATING POLYMER NETWORKS ; MICROGEL PARTICLES ; ACRYLIC-ACID ; HYDROGELS ; TEMPERATURE ; RELEASE ; MICROCAPSULES ; ACRYLAMIDE ; BEHAVIOR ; PH |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000373711700006 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/21003]  |
| 专题 | 过程工程研究所_生化工程国家重点实验室 |
| 作者单位 | 1.Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lai, En-Ping,Wang, Yu-Xia,Wei, Yi,et al. Preparation of Uniform-Sized and Dual Stimuli-Responsive Microspheres of Poly(N-Isopropylacrylamide)/Poly(Acrylic acid) with Semi-IPN Structure by One-Step Method[J]. POLYMERS,2016,8(3):1. |
| APA | Lai, En-Ping,Wang, Yu-Xia,Wei, Yi,&Li, Guang.(2016).Preparation of Uniform-Sized and Dual Stimuli-Responsive Microspheres of Poly(N-Isopropylacrylamide)/Poly(Acrylic acid) with Semi-IPN Structure by One-Step Method.POLYMERS,8(3),1. |
| MLA | Lai, En-Ping,et al."Preparation of Uniform-Sized and Dual Stimuli-Responsive Microspheres of Poly(N-Isopropylacrylamide)/Poly(Acrylic acid) with Semi-IPN Structure by One-Step Method".POLYMERS 8.3(2016):1. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。