SAXS/WAXS Studies on Structure of Spherical Micelles Formed by Poly(oxyethylene)/poly(oxybutylene) Block Copolymers in n-Hexane

Abstract

Abstract: The structure of micelles formed by two poly(oxyethylene)/poly(oxybutylene) block copolymers, E₇₆B₃₈ and E₁₅₅B₇₆, in n-hexane at 50 ℃ was studied by synchrotron Small Angle X-ray Scattering(SAXS) and Wide Angle X-ray Scattering(WAXS). Spherical micelle with a crystalline core was observed for E₁₅₅B₇₆. E₇₆B₃₈ also formed spherical micelles, but the core was amorphous. The radius of the core(R), the length of the amorphous chain in the shell(L) and the number of association(N) were obtained by fitting the SAXS data with the model of a spherical core attached with Gaussian chains. The result showed that the E block exhibited multiple folds. The B block tended to be more coiled and the area occupied by per chain was larger in the micelles of E₁₅₅B₇₆, which are favorable to the formation of spherical micelles.

Key words: Micelle, SAXS, WAXS, Poly(oxyethylene)/poly(oxybutylene) block copolymer

CLC Number:

O631

TrendMD:

XU Jun-Ting, LIANG Guo-Dong, Mai Shao-Min, Ryan Anthony J. . SAXS/WAXS Studies on Structure of Spherical Micelles Formed by Poly(oxyethylene)/poly(oxybutylene) Block Copolymers in n-Hexane[J]. Chem. J. Chinese Universities, 2004, 25(10): 1978.

[1]	HAN Yixiu, WU Dianguo, LI Hongpu, YIN Hongyao, MEI Yongjun, FENG Yujun, ZHONG Zuqin. Interactions Between Hydrophobic Associating Poly（sodium acrylate） and a Zwitterionic Surfactant in Non-aqueous Media and Low Temperature Environment [J]. Chem. J. Chinese Universities, 2021, 42(6): 2056.
[2]	HU Xueyi, HAN Lulu, FANG Yun, XIA Yongmei. Admicelles and Adsolubilization of Extended Surfactants on Alumina [J]. Chem. J. Chinese Universities, 2021, 42(3): 843.
[3]	FAN Juanjuan, HAN Yuanyuan, CUI Jie. Monte Carlo Simulation of the Transformation Control of ABC Triblock Copolymer Micelles from Multicompartment Structure to Multicore Structure [J]. Chem. J. Chinese Universities, 2021, 42(3): 857.
[4]	ZHANG Miao, PENG Jinlei, LIU Ying, LIU Fangjun, MA Wei, WEI Hua. Synthesis of Crosslinked Micelles and Ring-like Colloids via a Cyclic Template with Multivalency [J]. Chem. J. Chinese Universities, 2021, 42(11): 3526.
[5]	ZHANG Meng, WANG Shaosen, XIN Yuhao, LIU Xue, WU Qiuhua, ZHANG Guolin. Preparation and Drug Delivery Properties of Thermo/pH Dual Responsive Copolymer Composite Micelles of MPEG-b-PCL/PNVCL-b-PCL [J]. Chem. J. Chinese Universities, 2020, 41(12): 2822.
[6]	TANG Lin,JIANG Zhenqi,LI Juan,WU Aiguo. Anti-glioma Active Compounds and Their Nanomicelles Preparation of the Root of Actinidiaeriantha Benth^† [J]. Chem. J. Chinese Universities, 2019, 40(3): 468.
[7]	GUAN Qingxiang, JI Danyang, SUN Bo, QIAO Jin, HE Tong, ZHANG Guangyuan, YU Zhenjing, YIN Jianyuan, YANG Wei. Synthesis of Folate-conjugated Stearic Acid Grafted Bletilla striata Polysaccharides Copolymers and Application for Delivering Antitumor Drugs as a Drug Delivery Carrier^† [J]. Chem. J. Chinese Universities, 2018, 39(8): 1815.
[8]	WANG Yifu, DONG Jinxin, WANG Jilin, WANG Lulu, FENG Ruijiang. Ordered Self-assembly of Gemini Molecules in Mesoporous Silica Channels Constructing Normal Micelles to Assist the Migration of OH-† [J]. Chem. J. Chinese Universities, 2017, 38(1): 141.
[9]	LI Hong, DU Libo, ZHANG Han, ZHAO Yuming, LIU Yang. New Tanshinone IIA Delivery System Using Chitosan Nanomicelles of Small Size^† [J]. Chem. J. Chinese Universities, 2016, 37(7): 1229.
[10]	WANG Xiaoqing, LING Jun, SHEN Zhiquan. Synthesis and Self-assembly of Thermoplastic Elastomer Poly(ε-decalactone)-Poly(L-lactide)-PEG with Rare Earth Catalyst^† [J]. Chem. J. Chinese Universities, 2016, 37(6): 1182.
[11]	HAN Hailing, JIN Shunzi, MIAO Zhuang, CHEN Ping, WANG Zhanfeng, XIE Zhigang. Synthesis and Antitumor Activity of Targeting and Nano Drug-Carrying Micelles Mediated by Rabies-virus-derived Peptide RVG29 [J]. Chem. J. Chinese Universities, 2016, 37(4): 661.
[12]	GUAN Qingxiang, ZHANG Guangyuan, SUN Dandan, SUN Shilin, SUN Cheng, LIU Xin, HAN Bing. Investigation on Synthesis of Bletilla Striata Polysaccharides Amphiphilic Polymer and Drug-loaded Delivery System^† [J]. Chem. J. Chinese Universities, 2016, 37(10): 1915.
[13]	LI Xianhua, ZHANG Leigang, WANG Xuexue, YU Qingbo. Fabrication and Multi-antitumor Effect of Novel Dextran-hemin Crosslinked Micelles Triggered by Photo Conditions^† [J]. Chem. J. Chinese Universities, 2015, 36(5): 1004.
[14]	LIU Linlin, YANG Zhongzhi. Self-assembly Morphological Control of Block Copolymers Simulated via the Combination of Dissipative Particle Dynamics and ABEEM Polarizable Force Field^† [J]. Chem. J. Chinese Universities, 2015, 36(11): 2179.
[15]	LIANG Weiping, ZHAO Xiaohui, AN Dong, XU Qian, YE Zhiwen. Synthesis and Surface Properties of Siloxane Gemini Imidazolium Surfactant^† [J]. Chem. J. Chinese Universities, 2015, 36(10): 2009.

SAXS/WAXS Studies on Structure of Spherical Micelles Formed by Poly(oxyethylene)/poly(oxybutylene) Block Copolymers in n-Hexane

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments