2 2 azobisisobutyronitrile

The lignin used in this study was the residue that resulted from the production of butanol using cornstalks, and it was supplied by Bairui Bio-Polyos Co. Ltd. (Songyuan, China). Acrylamide (AM, 99%) and potassium persulfate (KPS) were purchased from Beijing Biotopped Co. Ltd. and Aladdin Reagent Co. Ltd. (Shanghai, China), respectively. All other reagents, such as 2,2-azobisisobutyronitrile (AIBN), sodium dodecyl sulfonate (SDS), N,N-dimethylformamide (DMF), n-hexadecane (HD), butyl acrylate (BA), methyl methacrylate (MMA), ethyl acetate, and dichloromethane (DCM), were purchased from Sinopharm Chemical Reagent Co. Ltd (Shanghai, China).

Ginsenoside Rg₁ (Rg₁), ginsenoside Rb₁ (Rb₁), notoginsenoside R₁ (R₁), ursolic acid (UA), oleanolic acid (OA) were supplied by the National Institute for the Control of Pharmaceutical and Biological Products (Beijing, China). Poly (ethylene glycol)-block-poly (propylene glycol)-block-poly (ethyiene glycol) (P123), tetraethoxy silane (TEOS), tetrahydrofuran, ethylene glycol dimethacrylate (EGDMA) and 4-vinylpyridine (4-VP) were purchased from Sigma-Aldrich (Steinheim, Germany). Acrylamide (AM), methacrylic acid (MAA) and 2,2-azobisisobutyronitrile (AIBN) from Sinopharm (Shanghai, China). 3-Methacryloxypropyltrimethoxysilane (MPS) was obtained from Aladdin (Shanghai, China). Acetonitrile of HPLC grade was prepared from Merck (Darmstadt, Germany). Ultrapure water (18.2 MΩ cm) was produced using a Millipore water purification system (Merck Millipore, Darmstadt, Germany) and used for the entire experiment. All other chemicals used in this study were of the analytical reagent grade.
The powder of Panax notoginseng was donated by the Department of Pharmacognosy, Nanjing Medical University (Nanjing, China).

Poly(ethylene glycol) methyl ether methacrylate (PEGMEM, M_n = 936 g mol⁻¹), stearyl methacrylate (SMA, M_n = 338 g mol⁻¹), octavinyl octasilsesquioxane (OV-POSS, M_n = 633 g mol⁻¹) and lithium bis(trifluoromethane sulfonamide) (LiTFSI) were purchased from Sigma-Aldrich. LiTFSI was stored in a desiccator and dried under vacuum condition at 120°C for 12 h before used. Tetrahydrofuran (THF), 2,2-azobisisobutyronitrile (AIBN), ethyl acetate and petroleum ether, purchased from Sinopharm Chemical Reagent Co., Ltd., were used as received.