Synthesis and Thermoreversible Gelation of Coil-Rod Copolymers with a Dendritic Polyethylene Core and Multiple Helical Poly(γ-benzyl-L-glutamate) Arms

被引:2
|
作者
Lu, Yuliang [1 ]
Liu, Dongtao [1 ]
Wei, Xinjie [1 ]
Song, Jiming [1 ]
Xiao, Qiaogang [1 ]
Du, Kezheng [1 ]
Shi, Xinbo [2 ,3 ]
Gao, Haiyang [2 ]
机构
[1] China Natl Offshore Oil Corp Energy Technol & Serv, Shenzhen Branch, Shenzhen 518067, Peoples R China
[2] Sun Yat Sen Univ, Sch Mat Sci & Engn, PCFM Lab, GD HPPC Lab, Guangzhou 510275, Peoples R China
[3] Chain Walking New Mat Technol Guangzhou Co Ltd, Guangzhou 511462, Peoples R China
关键词
dendritic polyethylene; poly(gamma-benzyl-L-glutamate); fibers; gelation; gels; CHAIN WALKING POLYMERIZATION; POLYPEPTIDE BLOCK-COPOLYMERS; STIMULI-RESPONSIVE VESICLES; ONE-POT SYNTHESIS; HYPERBRANCHED POLYETHYLENES; AMPHIPHILIC COPOLYMERS; DIBLOCK COPOLYMERS; POLYMERS; ETHYLENE; TRANSITION;
D O I
10.3390/polym15224351
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Coil-rod copolymers with a dendritic polyethylene (DPE) core and multiple helical poly(gamma-benzyl-L-glutamate) (PBLG) arms (DPE-(PBLG)(n)) were prepared by palladium-catalyzed copolymerization in tandem with ring-opening polymerization (ROP). Macroinitiator (DPE-(NH2)(11)) was firstly prepared by the group transformation of DPE-(OH)(11) generated from palladium-catalyzed copolymerization of ethylene and acrylate comonomer. Coil-helical DPE-(PBLG)(11) copolymers were prepared by ROP of gamma-benzyl-L-glutamate-N-carboxyanhydride (BLG-NCA). These DPE-(PBLG)(11) copolymers could form thermoreversible gels in toluene solvent, and the dendritic topology of the DPE core increased the critical gelation concentrations. The self-assembled nanostructure of gels was fully characterized by transmission electron microscopy (TEM), atomic force microscopy (AFM), small-angle X-ray scattering (SAXS), and wide-angle X-ray diffraction (WAXD), and the morphology of the fibrous structure was a twisted flat ribbon through a self-assembled nanoribbon mechanism. The self-assembled fibers formed by DPE-(PBLG(45))(11) are more heterogeneous and ramified than previously observed fibers formed by PBLG homopolymer and block copolymers.
引用
收藏
页数:12
相关论文
共 21 条
  • [1] Synthesis and thermoreversible gelation of coil-helical polyethylene-block-poly(γ-benzyl-L-glutamate) diblock copolymer
    Gao, Haiyang
    Hu, Zhilong
    Guan, Qirui
    Liu, Yong
    Zhu, Fangming
    Wu, Qing
    POLYMER, 2013, 54 (18) : 4923 - 4929
  • [2] Hierarchical self-assembly of poly(γ-benzyl-L-glutamate)-poly(ethylene glycol)-poly(γ-benzyl-L-glutamate) rod-coil-rod triblock copolymers
    Floudas, G
    Papadopoulos, P
    Klok, HA
    Vandermeulen, GWM
    Rodriguez-Hernandez, J
    MACROMOLECULES, 2003, 36 (10) : 3673 - 3683
  • [3] DSC and structural studies on thermoreversible gelation of poly(γ-benzyl-L-glutamate)/benzene
    Izumi, Yoshinobu
    Takezawa, Hikaru
    Uemura, Soichi
    Tsutsumi, Akihiro
    Reports on Progress in Polymer Physics in Japan, 70
  • [4] Synthesis and conformational studies of hyperbranched-core star polymers with poly(?-benzyl-L-glutamate) arms
    Barratt, Claire M.
    Haraniya, Tejaswini K.
    Iwamasa, Sofie J.
    Yun, Justin J.
    Desyatkin, Victor G.
    Wilcox, Kathryn G.
    Morozova, Svetlana A.
    Rodionov, Valentin O.
    EUROPEAN POLYMER JOURNAL, 2023, 186
  • [5] Aggregation Behavior of Poly(γ-benzyl-L-glutamate)-b-polyisoprene-b-poly(γ-benzyl-L-glutamate) Rod-Coil-Rod Triblock Copolymer in N,N-Dimethylformamide
    Ogata, Yoichi
    Iso, Kazuhiro
    Kura, Satoshi
    Hayakawa, Toshiyuki
    Makita, Yutaka
    JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 2010, 48 (15) : 1740 - 1748
  • [6] Synthesis and Self-assembly of Poly(ethylene glyco1)-g-Poly(γ-benzyl-L-glutamate) Rod-Coil Graft Copolymers
    Zhang, Shuo
    Li, Qing
    Lin, Jia-ping
    Cai, Chun-hua
    Wang, Li-quan
    ACTA POLYMERICA SINICA, 2017, (02): : 294 - 305
  • [7] Rod-rod hybrid poly(benzyl-L-glutamate)-co-poly(isocyanide) block copolymers: Synthesis and self-assembly
    Kros, Alexander
    Jesse, Wim
    Metselaar, Gerald A.
    Cornelissen, Jeroen J. L. M.
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2006, 231
  • [8] Reversible gelation in isotropic solutions of the helical polypeptide poly(γ-benzyl-L-glutamate):: Kinetics and formation mechanism of the fibrillar network
    Tadmor, R
    Khalfin, RL
    Cohen, Y
    LANGMUIR, 2002, 18 (19) : 7146 - 7150
  • [9] Synthesis and conformation of star-shaped poly(γ-benzyl-l-glutamate)s on a cyclotriphosphazene core
    Inoue, K
    Horibe, S
    Fukae, M
    Muraki, T
    Ihara, E
    Kayama, H
    MACROMOLECULAR BIOSCIENCE, 2003, 3 (01) : 26 - 33
  • [10] Synthesis and characterization of amphiphilic ab diblock copolymers of poly (γ-benzyl-L-glutamate) and poly (ethylene glycol) monomethyl ether
    Zhang, GL
    Wu, QH
    Pan, T
    Ma, JB
    ACTA POLYMERICA SINICA, 2004, (02) : 223 - 227