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第六届国际高分子化学学术讨论会

作者： Chao Deng Fenghua Meng Ru Cheng Jian Zhang Zhiyuan Zhong Biomedical Polymers Laboratory and Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationDepartment of Polymer Science and EngineeringCollege of ChemistryChemical Engineering and Materials ScienceSoochow University

The ever growing biomedical technology such as regenerative medicine and controlled drug release intimately relies on the development of advanced functional biomaterials,among which aliphatic polyc

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ANIONIC SYNTHESIS AND CHARACTERIZATION OF WELL-DEFINED POSS-BASED STAR polymerS

ANIONIC SYNTHESIS AND CHARACTERIZATION OF WELL-DEFINED POSS-...

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第六届国际高分子化学学术讨论会

作者： Jinlin He Xuesheng Yan Wen-Bin Zhang Kan Yue Peihong Ni Stephen Z.D.Cheng College of Chemistry Chemical Engineeringand Materials ScienceJiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationSoochow University Department of Polymer Science College of Polymer Science and Polymer EngineeringThe University of Akron

Star-shaped polymers refer to one kind of branched polymer in which multiple linear polymeric chains are attached to a central core1,*** unique chain topology imparts valuable properties dependin

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COPPER(0)-MEDIATED RADICAL polymerIZATION OF STYRENE AT ROOM TEMPERATURE

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Chinese Journal of polymer Science 2013年第4期31卷 702-712页

作者： Xiao-fei Zhang Yang Wu Jun Huang Xue-lang Miao 张正彪朱秀林 Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application Department of Polymer Science and EngineeringCollege of ChemistryChemical Engineering and Materials ScienceSoochow University

The ＂living＇/controlled radical polymerization （LRP） of styrene （St） at room temperature is rarely reported. In this work, copper（0）（Cu（0））-mediated radical polymerization of St at room temperature was investigated in detail. Dimethyl sulfoxide （DMSO）, N,N-dimethylformamide （DMF） as well as a binary solvent, tetrahydrofuravdl,l,l,3,3,3-hexafluoro-2- propanol were used as the solvents, respectively. Methyl-2-bromopropionate and ethyl 2-bromoisobutyrate were used as the initiators, respectively. The polymerization proceeded smoothly with moderate conversions at room temperature. It was found that DMF was a good solvent with the essential features of LRP, while DMSO was a poor solvent with uncontrollable molecular weights. Besides, the match among the initiator, solvent and molar ratios of reactants can modulate the livingness of the polymerization, and the proper selection of ligand was also crucial to a controlled process. This work provided a first example of Cu（0）-mediated radical polymerization of St at room temperature, which would enrich and strength the LRP technique.

关键词： Gel permeation chromatography （GPC） Kinetics （polym.） Cu（0）-mediated radical polymerization Styrene.

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cRGD-functionalized AuNR-cored PEG-PCL nanoparticles for efficacious glioma chemotherapy

cRGD-functionalized AuNR-cored PEG-PCL nanoparticles for eff...

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The Third Symposium on Innovative polymers for Controlled Delivery(SIPCD2014) (第三届新型高分子材料与控制释放国际会议)

作者： Yinan Zhong Chao Wang Fenghua Meng Zhuang Liu Zhiyuan Zhong Biomedical Polymers Laboratory and Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Institute of Functional Nano & Soft Materials(FUNSOM)Soochow UniversitySuzhou215123China

The current micellar drugs suffer a lot from low in vivo stability,premature drug release,inefficient tumor cell uptake,as well as slow drug release in the tumor site and inside the tumor cells,which would not only greatly reduce their therapeutic efficacy but also induce systemic side ***,we report on cRGD-directed,NIR-responsive and robust AuNR/PEG-PCL hybrid nanoparticles (cRGD-HNs) for targeted chemotherapy of human glioma xenografts in mice [1].

关键词： cRGD gold nanorod light-sensitive controlled drug release glioblastoma

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ANIONIC SYNTHESIS AND CHARACTERIZATION OF WELL-DEFINED POSS-BASED STAR polymerS

ANIONIC SYNTHESIS AND CHARACTERIZATION OF WELL-DEFINED POSS-...

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第六届高分子化学国际学术研讨会

Star-shaped polymers refer to one kind of branched polymer in which multiple linear polymeric chains are attached to a central core1,*** unique chain topology imparts valuable properties depending critically on the molecular parameters such as number of arms,molecular weight of each arm,chemical identity of each arm,and *** general,with the growth of living anionic

关键词： ANIONIC SYNTHESIS AND CHARACTERIZATION OF WELL-DEFINED POSS-BASED STAR polymerS

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Controlling Morphology of Active Layer by Tuning Coplanarity of the Centrality in Acceptor-Donor-Acceptor Small Molecules for Photovoltaic application

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Chinese Journal of Chemistry 2013年第11期31卷 1439-1448页

作者： Pan Zhang Chao Li Yue Zhao Yaowen Li Yingfeng Tu Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application Department of Polymer Science and Engineering College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China

A series of acceptor-donor-acceptor alternative small molecules were synthesized containing electron-donating central building moieties of phenothiazine, 2,7-carbazole and thieno[3,4-b]thiophene and electron-accepting moie- ties of tetrazine on both sides. The various conformations of the central blocks, with the coplanarity in an order of phenothiazine〈2,7-carbazole〈thieno[3,4-b]thiophene, have an obvious influence on the optical, electrochemical property and the crystallinity of small molecule. In addition, the blend films between small molecule and （6,6）-phenyl-C6rbutyric acid methyl ester offered significantly various morphologies, changing from uniform sur- face to interpenetrated networks. As a result, the bulk heterojunction photovoltaic devices based on the three small molecules provided varied performance, and the highest coplanar molecule based device exhibited the best photo- voltaic performance.

关键词： acceptor-donor-acceptor small molecules central blocks coplanarity morphology

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ANIONIC SYNTHESIS OF A “CLICKABLE” MIDDLE-CHAIN AZIDE-functionalIZED POLYSTYRENE AND ITS application IN SHAPE AMPHIPHILES

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Chinese Journal of polymer Science 2013年第1期31卷 71-82页

作者： Kan Yue Jinlin He Chang Liu Mingjun Huang Xue-Hui Dong Kai Guo Peihong Ni Chrys Wesdemiotis Roderic P. Quirk Stephen Z. D. Cheng Wen-Bin Zhang Department of Polymer Science College of Polymer Science and Polymer EngineeringThe University of Akron College of Chemistry Chemical Engineeringand Materials ScienceJiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationSoochow University Department of Chemistry The University of Akron

＂Click chemistry＂ is, by definition, a general functionalization methodology （GFM） and its marriage with living anionic polymerization is particularly powerful in precise macromolecular synthesis. This paper reports the synthesis of a ＂clickable＂ middle-chain azide-functionalized polystyrene （mPS-N3） by anionic polymerization and its application in the preparation of novel shape amphiphiles based on polyhedral oligomeric silsesquioxane （POSS）. The mPS-N3 was synthesized by coupling living poly（styryl）lithium chains （PSLi） with 3-chloropropylmethyldichlorosilane and subsequent nucleophilic substitution of the chloro group in the presence of sodium azide. Excess PSLi was end-capped with ethylene oxide to facilitate its removal by flash chromatography. The raPS-N3 was then derived into a giant lipid-like shape amphiphile in two steps following a sequential ＂click＂ strategy. The copper（I）-catalyzed azide-alkyne cycloaddition between mPS-N3 and alkyne-functionalized vinyl-substituted POSS derivative （VPOSS-alkyne） ensured quantitative ligation to give polystyrene with VPOSS tethered at the middle of the chain （mPS-VPOSS）. The thiol-ene reaction with 1-thioglycerol transforms the vinyl groups on the POSS periphery to hydroxyls, resulting in an amphiphilic shape amphiphile, mPS-DPOSS. This synthetic approach is highly efficient and modular. It demonstrates the ＂click＂ philosophy of facile complex molecule construction from a library of simple building blocks and also suggests that mPS-N3 can be used as a versatile ＂clickable＂ motif in polymer science for the precise synthesis of complex macromolecules.

关键词： Living anionic polymerization Polyhedral oligomeric silsesquioxane （POSS）＂Click＂ chemistry Generalfimctionalization methodology （GFM）.

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PROTEIN ADSORPTION AND CELL ADHESION ON RGD-functionalIZED SILICON SUBSTRATE SURFACES

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Chinese Journal of polymer Science 2013年第3期31卷 495-502页

作者： Wei-fang Tong Xiao-li Liu Fei Pan 武照强 Wen-wen Jiang Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application Department of Polymer Science and EngineeringCollege of ChemistryChemical Engineering and Materials ScienceSoochow University College of Chemistry and Material Sciences South-Central University for Nationalities

A method was developed to modify silicon surfaces with good protein resistance and specific cell attachment. A silicon surface was initially deposited using a block copolymer of N-vinylpyrrolidone （NVP） and 2-hydroxyethyl methacrylate （HEMA）（PVP-b-PHEMA） film through surface-initiated atom transfer radical polymerization and then further immobilized using a short arginine-glycine-aspartate （RGD） peptide. Our results demonstrate that the RGD-modified surfaces （Si-RGD） can suppress non-specific adsorption of proteins and induce the adhesion of L929 cells. The Si-RGD surface exhibited higher cell proliferation rates than the unmodified silicon surface. This research established a simple method for the fabrication of dual-functional silicon surface that combines antifouling and cell attachment promotion.

关键词： Cell adhesion Protein adsorption RGD Poly（N-vinylpyrrolidone） ATRP.

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SYNTHESIS OF pH-RESPONSIVE AMPHIPHILIC DIBLOCK COpolymerS CONTAINING POLYISOBUTYLENE via OXYANION-INITIATED polymerIZATION AND THEIR MULTIPLE SELF-ASSEMBLY MORPHOLOGIES

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Chinese Journal of polymer Science 2013年第2期31卷 218-231页

作者： Huai-chao Wang Ming-zu Zhang 倪沛红 Jin-lin He Ying Hao Yi-xian Wu College of Chemistry Chemical Engineering and Materials Science Soochow University Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application Soochow University State Key Lab of Chemical Resource Engineering Beijing University of Chemical Technology

Two pH-responsive amphiphilic diblock copolymers, namely polyisobutylene-block-poly[2-（N,N- dimethylamino）ethyl methaerylate] （PIB-b-PDMAEMA） and polyisobutylene-block-poly（metharylic acid）（PIB-b-PMAA）, were synthesized via oxyanion-initiated polymerization, and their multiple self-assembly behaviors have been studied. An exo-01efin-terminated highly reactive polyisobutylene （HRPIB） was first changed to hydroxyl-terminated PIB （PIB-OH） via hydroboration-oxidation of C =C double bond in the chain end, and then reacted with KH to yield a potassium alcoholate of PIB （PIB-O-K＋）. PIB-O-K＋ was immediately used as a macroinitiator to polymerize DMAEMA monomer, resulting in a cationic diblock copolymer PIB-b-PDMAEMA. With the similar synthesis procedure, the anionic diblock copolymer PIB-b- PMAA could be prepared via a combination of oxyanion-initiated polymerization of tert-butyl methacrylate （tBMA） and subsequent hydrolysis of tert-butyl ester groups in PtBMA block. The functional PIB and block copolymers have been fully characterized by 1H-NMR, FT-IR spectroscopy, and gel permeation chromatography （GPC）. These samples allowed us to systematically investigate the effects of block composition on the pH responsivity and various self-assembled morphologies of the copolymers in THF/water mixed solvent. Transmission electron microscopy （TEM） images revealed that these diblock copolymers containing small amount of original PIB without exo-olefin-terminated group are able to self-assemble into micelles, vesicles with different particle sizes and cylindrical aggregates, depending on various factors including block copolymer composition, solvent polarity and pH value.

关键词： Oxyanion-initiated polymerization Polyisobutylene Stimuli responsivity Amphiphilic copolymer Self- assembly.

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Adhesion: Gecko-Inspired but Chemically Switched Friction and Adhesion on Nanofibrillar Surfaces (Small 9-10/2015)

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Small 2015年第9-10期11卷

作者： Shuanhong Ma Daoai Wang Yongmin Liang Baoquan Sun Stanislav N. Gorb Feng Zhou State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China University of the Chinese Academy of Sciences Beijing 100049 China Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application Soochow University Suzhou Industrial Park Suzhou 215123 China Department Functional Morphology and Biomechanics Zoological Institute of the University of Kiel Am Botanischen Garten 1–9 D-24098 Kiel Germany

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