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Supramolecular Micelles and Reverse Micelles Based on Cyclodextrin Polyrotaxanes

Chinese Journal of Chemistry 2014年第1期32卷 73-77页

作者： Qiao Jin Gongyan Liu Jian Ji[*] MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou Zhejiang 310027 China Email: Jian Ji (jijian@***)[*]MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou Zhejiang 310027 China Tel.: 0086-0571-87953729 Fax: 0086-0571-87953729

A new supramolecular self-assembly approach to construct micelles and reverse micelles was ***-hydrophilic block copolymers poly(ethylene oxide)-b-poly(N-isopropylacrylamide) (PEO-b-PNIPAAm) was synthesized via atom transfer radical polymerization (ATRP) using PEO *** of the lower critical solution temperature (LCST) phase behavior of PNIPAAm,PEO-b-PNIPAAm block copolymers self-assembled to form PNIPAAm-core micelles at 40 ℃.The PNIPAAm-core micelles were disassembled to unimers when the temperature was decreased to 25 ℃.But the addition of α-cyclodextrins (α-CDs) could induce the formation of PNIPAAm-shell micelles because of the 'channel-type' crystallities induced by PEO/α-CDs *** assembly and disassembly procedure of micelles and reverse micelles were investigated by dynamic light scattering (DLS),X-ray diffraction (XRD),1H NMR and transmission electron microscopy (TEM).

关键词： cyclodextrin polyrotaxane reverse micelle supramolecular

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Crystal Growth and Characterization of Fluorinated Perylene Diimides

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Chemical Research in Chinese Universities 2014年第1期30卷 63-67页

作者： HUANG Jiachi LI Hanying MO Xiong SHI Minmin WANG Mang CHEN Hongzheng State Key Laboratory of Silicon Materials Key Laboratory of Macromolecular Synthesis and Functionalization Ministry of Education Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 P. R. China

One-dimensional crystals of fluorinated perylene diimides were achieved by the self-assembly of them via solvent-nonsolvent *** π-conjugated fluorinated perylene diimides were assembled into highly-ordered nanostructures of well-defined morphologies in organic solvents due to the π-π interaction between the aromatic *** was found that with more introduced F atoms,perylene diimides showed remarkably improved solubility and thus were much easier to grow into crystals,due to the increased polarity induced by the strong electron-withdrawing F *** importantly,single crystal of N,N＇-diperfluorophenyl-3,4,9,10-perylenetetracarboxylic diimide（DPFPP）was obtained,and the unit cell-dimensions of triclinic structure were determined by the selected area electron diffraction（SAED） pattems to be a=0.712 nm,b=1.072 nm,c=2.914 nm,a=97.0°,β=89.6°,γ=93.4°.Owing to most of the longest c-axis orienting nearly vertically to the long axis of the needle crystal,the molecular planes are expected to be vertical to the needle axis.

关键词： Perylene diimide Fluorination Crystal growth

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Correction: Highly efficient and stable blue polymer light emitting diodes based on polysilafluorenes with pendent hole transporting groups

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Journal of Materials Chemistry C 2016年第5期4卷 1126-1126页

作者： Guangrong Jin Lianpeng Xia Zhe Liu Hong Lin Jun Ling Hongbin Wu Lintao Hou Yueqi Mo College of Materials Science and Engineering South China University of Technology Guangzhou 510640 China Siyuan Laboratory Department of Physics Jinan University Guangzhou 510632 China MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China

Correction for ‘Highly efficient and stable blue polymer light emitting diodes based on polysilafluorenes with pendent hole transporting groups’ by Guangrong Jin et al., J. Mater. Chem. C, 2016, DOI: 10.1039/c5tc036...

Correction for ‘Highly efficient and stable blue polymer light emitting diodes based on polysilafluorenes with pendent hole transporting groups’ by Guangrong Jin et al., J. Mater. Chem. C, 2016, DOI: 10.1039/c5tc03665h.

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Photodetectors: A Broadband Fluorographene Photodetector (Adv. Mater. 22/2017)

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Advanced Materials 2017年第22期29卷

作者： Sichao Du Wei Lu Ayaz Ali Pei Zhao Khurram Shehzad Hongwei Guo Lingling Ma Xuemei Liu Xiaodong Pi Peng Wang Hehai Fang Zhen Xu Chao Gao Yaping Dan Pingheng Tan Hongtao Wang Cheng‐Te Lin Jianyi Yang Shurong Dong Zhiyuan Cheng Erping Li Wenyan Yin Jikui Luo Bin Yu Tawfique Hasan Yang Xu Weida Hu Xiangfeng Duan College of Information Science and Electronic Engineering Zhejiang University Hangzhou Zhejiang 310027 China State Key Laboratory of Silicon Materials College of Material Science Zhejiang University Hangzhou Zhejiang 310027 China Institute of Applied Mechanics Zhejiang University Hangzhou Zhejiang 310027 China National Laboratory for Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China MOE Key Laboratory of Macromolecular Synthesis and Functionalization Zhejiang University Hangzhou Zhejiang 310027 China University of Michigan ‐ Shanghai Jiao Tong University Joint Institute Shanghai Jiao Tong University Shanghai 200240 China State Key Laboratory of Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences Beijing 100083 China Key Laboratory of Marine Materials and Related Technologies Zhejiang Key Laboratory of Marine Materials and Protective Technologies Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo Zhejiang 315201 China College of Nanoscale Science and Engineering State University of New York New York NY 12203 USA Department of Engineering University of Cambridge Cambridge CB3 0FA UK Department of Chemistry and Biochemistry University of California Los Angeles CA 90095 USA

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Environmental Sensing: Designing an Efficient Multimode Environmental Sensor Based on Graphene–Silicon Heterojunction (Adv. Mater. Technol. 4/2017)

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Advanced Materials Technologies 2017年第4期2卷

作者： Khurram Shehzad Tianjin Shi Akeel Qadir Xia Wan Hongwei Guo Ayaz Ali Weipeng Xuan Hua Xu Zhongze Gu Xinsheng Peng Jin Xie Litao Sun Qiyuan He Zhen Xu Chao Gao You-Seung Rim Yaping Dan Tawfique Hasan Pingheng Tan Erping Li Wenyan Yin Zhiyuan Cheng Bin Yu Yang Xu Jikui Luo Xiangfeng Duan Key Laboratory of Micro-Nano Electronics and Smart System of Zhejiang Province College of Information Science and Electronic Engineering and State Key Laboratory of Silicon Materials Zhejiang University Hangzhou 310027 China Hangzhou Hikvision Digital Technology Co. Ltd Hangzhou 310052 China State Key Laboratory of Bioelectronics Southeast University 210096 Nanjing China College of Material Science Zhejiang University Hangzhou 310027 China State Key Laboratory of Fluid Power & Mechatronic systems Zhejiang University Hangzhou 310027 China SEU-FEI Nano-Pico Center Key Laboratory of MEMS of the Ministry of Education Southeast University Nanjing 210096 China Department of Chemistry and Biochemistry University of California Los Angeles CA 90095 USA MOE Key Laboratory of Macromolecular Synthesis and Functionalization Zhejiang University Hangzhou 310027 China School of Intelligent Mechatronic Engineering Sejong University 209 Neungdong-ro Gwangjin-gu Seoul 05006 Republic of Korea Joint Institute of University of Michigan and Shanghai Jiaotong University 200240 Shanghai China Cambridge Graphene Centre University of Cambridge Cambridge CB3 0FA UK State Key Laboratory of Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences Beijing 100083 China College of Nanoscale Science and Engineering State University of New York NY 12203 USA Institute of Renewable Energy & Environment Technologies University of Bolton Bolton BL3 5AB UK

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pH and Reduction Dual-Responsive Nano-Prodrug Micelles for Tumor Therapy

pH and Reduction Dual-Responsive Nano-Prodrug Micelles for T...

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The 6th International Conference on Nanoscience & Technology, China 2015

作者： Weipu Zhu Ying Wang Xiaodong Li Xuliang Deng MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang University The Affiliated Stomatology Hospital College of MedicineZhejiang University Department of VIP Dental Service & Geriatric Dentistry School and Hospital of StomatologyPeking University

Nowadays the development of polymeric prodrug, which convert drug into an inactive but stable polymer-drug conjugates and revert back to the pharmacologically active drug when triggered by unique biological stimuli such as p H, redox, or enzyme for targeting cancer therapy, has attracted considerable attention in biomedical areas.[1-3] In our present work, amphiphilic copolymer poly[poly(ethylene glycol) fumaricate-co-dithiodithanol fumaricate](PPEGSSFM) with multi-enes and disulfides was synthesized facilely by polycondensation, which can self-assemble into nano-scaled micelles and encapsulated mercapto-modified doxorubicin, 1,6-hexanedithiol into the core for in situ drug conjugation and core crosslinking(CCL) via thiol-ene "click" reaction, resulting in a p H and redox dual-responsive CCL nano-prodrug. This nano-prodrug presented stable nano-scaled spherical particles under physiological conditions while quickly dissociated in the presence of 10 mM DTT. As doxorubicin(DOX) was conjugated via a p H-sensitive hydrazone linkage, the in vitro release results showed a minimized release of DOX at physiological environment, while a rapid release in an acidic(p H 5.8) and reductive(10 mM DTT) environment with the cleavage of hydrazone linkage and the disulfide bonds. Confocal laser scanning microscope further demonstrated that nano-prodrug can be quickly taken in cells and present a rapid redox and p H dual-responsive DOX release in cytoplasm. Cytotoxicity assay indicated that nano-prodrug show excellent cytotoxic effects to Hela cells while its precursors PPEGSSFM exhibit great biocompatibility. These p H and reduction dual-responsive CCL nano-prodrug would be a promising and potential nanomedicine for cancer chemotherapy.

关键词： tumor,prodrug,doxorubicin,PEG

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Flame-retardant Coating by Alternate Assembly of Poly(vinylphosphonic acid) and Polyethylenimine for Ramie Fabrics

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Chinese Journal of Polymer Science 2014年第3期32卷 305-314页

作者： Li-li Wang Tao Zhang Hong-qiang Yan 彭懋 Zheng-ping Fang Yan Li Wang Hao MOE Key Laboratory of Macromolecular Synthesis and Functionalization Institute of Polymer CompositesZhejiang University Laboratory of Polymer Materials and Engineering Ningbo Institute of TechnologyZhejiang University School of Aerospace Engineering and Applied Mechanics Tongji University Centre of Excellence in Engineered Fibre Composites University of Southern Queensland

A novel intumescent flame retardant coating, consisting of poly（vinylphosphonic acid）（PVPA） as the acid source and branched polyethylenimine （BPEI） as the blowing agent, was constructed on the surface of ramie fabrics by alternate assembly to remarkably improve the flame retardancy of ramie. The PVPA/BPEI coating on the surface of individual fibers of ramie fabric pyrolyzes to form protective char layer upon heating/burning and improves the flame retardancy of ramie. Thermogravimetric analysis reveals that the PVPA/BPEI-coated ramie fabrics left as much as 25.8 wt% residue at 600 ~C, while the control （uncoated） fabric left less than 1.4 wt% residue. Vertical flame test shows that all PVPA/BPEI-coated fabrics have shorter after-flame time, and the residues well preserved the original weave structure and fiber morphology, whereas, the uncoated fabric left only ashes. Microscale combustion calorimetry shows that the PVPA/BPEI coatings greatly reduce the total heat release by as much as 66% and the heat release capacity by 76%, relative to those of the uncoated fabric.

关键词： Alternative assembly Poly（vinylphosphonic acid） Flame retardant Ramie fabric.

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pH and Reduction Dual-Responsive Nano-Prodrug Micelles for Tumor Therapy

pH and Reduction Dual-Responsive Nano-Prodrug Micelles for T...

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The 6th International Conference on Nanoscience and Technology, China 2015 (第六届中国国际纳米科学技术会议)

作者： Weipu Zhu Ying Wang Xiaodong Li Xuliang Deng MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science a The Affiliated Stomatology Hospital College of MedicineZhejiang UniversityHangzhou 310006P.R.Chin Department of VIP Dental Service & Geriatric Dentistry School and Hospital of StomatologyPeking Uni

关键词： tumor prodrug doxorubicin PEG

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Tandem Organic Solar Cells: Nonfullerene Tandem Organic Solar Cells with High Open‐Circuit Voltage of 1.97 V (Adv. Mater. 44/2016)

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Advanced Materials 2016年第44期28卷

作者： Wenqing Liu Shuixing Li Jiang Huang Shida Yang Jiehuan Chen Lijian Zuo Minmin Shi Xiaowei Zhan Chang‐Zhi Li Hongzheng Chen State Key Laboratory of Silicon Materials MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 P. R. China State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Information University of Electronic Science and Technology of China (UESTC) Chengdu 610054 P. R. China Department of Materials Science and Engineering College of Engineering Key Laboratory of Polymer Chemistry and Physics of Ministry of Education Peking University Beijing 100871 China

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Surface functionalization of Microporous Polypropylene Membrane with Polyols for Removal of Boron Acid from Aqueous Solution

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Chinese Journal of Chemical Engineering 2014年第1期22卷 11-18页

作者：周蓉狄玲王苍方艳吴健徐志康 MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Department of Chemistry Zhejiang University

Affinity membranes are fabricated for boric acid removal by the surface functionalization of microporous polypropylene membrane(MPPM)with lactose-based *** affinity is based on specific complexation between boric acid and saccharide polyols.A photoinduced grafting-chemical reaction sequence was used to prepare these affinity ***(2-aminoethyl methacrylate hydrochloride)[poly(AEMA)]was grafted on the surfaces of MPPM by UV-induced graft *** in the membrane pores was visualized by dying the cross-section of poly(AEMA)-grafted MPPM with fluorescein disodium and imaging with confocal laser scanning *** is concluded that lactose ligands can be covalently immobilized on the external surface and in the pores by the subsequent coupling of poly(AEMA)with lactobionic acid(LA).Physical and chemical properties of the affinity membranes were characterized by field emission scanning electron microscopy and Fourier Transform Infrared/Attenuated Total Refraction spectroscopy(FT-IR/ATR).3-Aminophenyl boric acid(3-APBA)was removed from aqueous solution by a single piece of lactose-functionalized MPPM in a dynamic filtration *** results show that the 3-APBA removal reaches an optimal efficiency(39.5%)under the alkaline condition(pH9.1),which can be improved by increasing the immobilization density of *** of these affinity membranes can be easily realized through acid-base washing because the complexation of boric acid and saccharide polyol is reversible.

关键词： surface functionalization affinity membrane microporous polypropylene membrane boron removal polyols

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