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INTERACTION BETWEEN THE SURFACE GLYCOSYLATED POLYPROPYLENE MEMBRANE AND LECTIN

Chinese Journal of Polymer Science 2008年第3期26卷 363-367页

作者：徐志康 Institute of Polymer Science and Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education) Zhejiang UniversityHangzhou 310027China

A glycopolymer bearing glucose residues was tethered onto the surface of polypropylene microporous membrane by UV-induced graft polymerization ofα-allyl *** A (Con A),a glucose recognizing lectin,could be specifically adsorbed to the membrane *** the other hand,the membrane surface showed no recognition ability to another lectin peanut ***,the recognition complex between the glycosylated membrane surface and Con A could be inhibited by glucose and mannose solution.T...

关键词： Affinity membrane Protein separation Glycopolymer Glycosylated surface Garft polymerization Polypropylene microporous membrane

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Highly efficient and thermal stable guanidinium-based two-dimensional perovskite solar cells via partial substitution with hydrophobic ammonium

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Science China Chemistry 2019年第7期62卷 859-865页

作者： Yingzhu Zhang Jiehuan Chen Xiaomei Lian Weitao Yang Jun Li Shuoxun Tian Gang Wu Hongzheng Chen State Key Laboratory of Silicon Materials Key Laboratory of Macromolecular Synthesis and Functionalization (Ministry of Education)Department of Polymer Science and Engineering Zhejiang University

Layered two-dimensional(2D)perovskite solar cells(PVSCs)with a chemical formula of C(NH2)3(CH3NH3)3Pb3I10(n=3)have been fabricated through additive engineering,wherein stoichiometrically equivalent guanidinium(GA+)and methylammonium(MA+)serve as spacer *** crystallinity of the perovskite films is dramatically enhanced with proper amount of methylammonium thiocyanate(MASCN)added into the precursor *** addition,we substitute a small amount of MA+with hydrophobic phenylethylammonium(PEA+),which can passivate trap states of the perovskite *** a result,the open circuit voltage increases to 1.1 V and the best power conversion efficiency(PCE)of 10.12%is ***,superior thermal stability and balanced moisture stability of the PEA-substituted GA-based PVSCs are demonstrated,compared to the popular 3D MAPbI3and 2D PEA-based *** retain approximately 80%of the original PCE after 30 d at 20%relative humidity(RH),and 50%of the original PCE after 3200 min at 85°C without any *** work suggests a new route to achieve both heat and humidity stable PVSCs by simply mixing different spacer cations.

关键词： guanidinium-based 2D perovskite solar cells additive engineering PEA substitution stability

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An Unprecedented Efficiency with Approaching 21%Enabled by Additive‑Assisted Layer‑by‑Layer Processing in Organic Solar Cells

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Nano-Micro Letters 2025年第2期17卷 372-375页

作者： Shuai Xu Youdi Zhang Yanna Sun Pei Cheng Zhaoyang Yao Ning Li Long Ye Lijian Zuo Ke Gao Key Laboratory of Advanced Green Functional Materials College of ChemistryChangchun Normal UniversityChangchun 130032People’s Republic of China Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion School of Chemistry and Chemical EngineeringShandong UniversityQingdao 266237People’s Republic of China College of Polymer Science and Engineering Sichuan UniversityChengdu 610065People’s Republic of China State Key Laboratory and Institute of Elemento‑Organic Chemistry Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071People’s Republic of China Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640People’s Republic of China Tianjin Key Laboratory of Molecular Optoelectronic Sciences School of Materials Science and EngineeringTianjin UniversityTianjin 300350People’s Republic of China State Key Laboratory of Silicon Materials MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China

Recently published in Joule,Feng Liu and colleagues from Shanghai Jiaotong University reported a record-breaking 20.8%power conversion efficiency in organic solar cells(OSCs)with an interpenetrating fibril network active layer morphology,featuring a bulk p-in structure and proper vertical segregation achieved through additive-assisted layer-by-layer *** optimized hierarchical gradient fibrillar morphology and optical management synergistically facilitates exciton diffusion,reduces recombination losses,and enhances light capture *** approach not only offers a solution to achieving high-efficiency devices but also demonstrates the potential for commercial applications of OSCs.

关键词： Organic solar cells Additive-assisted layer-by-layer processing Three-dimensional fibril morphology Bulk p-i-n structure Optical management

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Recent advances in plasmonic organic photovoltaics

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Science China Chemistry 2015年第2期58卷 210-220页

作者： Xi Yang Wenqing Liu Hongzheng Chen State Key Laboratory of Silicon Materials Key Laboratory of Macromolecular Synthesis and Functionalization Ministry of Education Department of Polymer Science and Engineering Zhejiang University

Light trapping based on the localized surface-plasmon resonance(LSPR)effect of metallic nanostructures is a promising strategy to improve the device performance of organic solar cells(OSCs).We review recent advances in plasmonic-enhanced OPVs with solution-processed metallic nanoparticles(NPs).The different types of metallic NPs(sizes,shapes,and hybrids),incorporation positions,and NPs with tunable resonance wavelengths toward broadband enhancement are systematically summarized to give a guideline for the realization of highly efficient plasmonic photovoltaics.

关键词： plasmonic effect organic solar cell enhanced light absorption

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A TRILAYER DERMAL EQUIVALENT CONTAINING SILVER NANOPARTICLES WITH ENHANCED ANTIBACTERIAL PROPERTY

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Chinese Journal of Polymer Science 2009年第6期27卷 865-871页

作者：马列高长有 Key Laboratory of Macromolecular Synthesis and Functionalization Ministry of Educationand Department of Polymer Science and EngineeringZhejiang University

A dermal equivalent having a trilayered structure was designed by combining a silver nanoparticles incorporated chitosan film with a bilayer collagen-chitosan/silicon membrane dermal equivalent(BDE).The silver nanoparticles prepared at different conditions were characterized by UV-Vis and transmission electron microscopy(TEM).The macroscopic sharp and the microstructure of the trilayer dermal equivalent(TDE) were also ***,the in vitro antibacterial property of TDE was evaluated by the antibacterial...

关键词： Scaffold Silver nanoparticles Antibacterial Dermal equivalent Skin regeneration

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TOUGHENING OF ETHYLENE-PROPYLENE RANDOM COPOLYMER/CLAY NANOCOMPOSITES:COMPARISON OF DIFFERENT COMPATIBILIZERS

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Chinese Journal of Polymer Science 2012年第6期30卷 853-864页

作者：郑强 Key Laboratory of Macromolecular Synthesis and Functionalization of Ministry of Education Zhejiang University Department of Polymer Science and Engineering Zhejiang University

Ethylene/propylene-random-copolymer （PPR）/clay nanocomposites were prepared by two-stage melt blending. Four types of compatibilizers, including an ethylene-octene copolymer grafted maleic anhydride （POE-g-MA） and three maleic-anhydride-grafted polypropylenes （PP-g-MA） with different melt flow indexes （MFI）, were used to improve the dispersion of organic clay in matrix. On the other hand, the effects of organic montmorillonite （OMMT） content on the nanocomposite structure in terms of clay dispersion in PPR matrix, thermal behavior and tensile properties were also studied. The X-ray diffraction （XRD） and transmission electron microscopy （TEM） results show that the organic clay layers are mainly intercalated and partially exfoliated in the nanocomposites. Moreover, a PP-g-MA compatibilizer （compatibilizer B） having high MFI can greatly increase the interlayer spacing of the clay as compared with other compatibilizers. With the introduction of compatibilizer D （POE-g-MA）, most of the clays are dispersed into the POE phase, and the shape of the dispersed OMMT appears elliptic, which differs from the strip of PP-g-MA. Compared with virgin PPR, the Young＇s modulus of the nanocomposite evidently increases when a compatibilizer C （PP-g-MA） with medium MFI is used. For the nanocomposites with compatibilizer B and C, their crystallinities （Xc） increase as compared with that of the virgin PPR. Furthermore, the increase of OMMT loadings presents little effect on the melt temperature （Tc） of the PPR/OMMT nanocomposites, and slight effect on their crystallization temperature （Tc）. Only compatibilizer B can lead to a marked increases in crystallinity and Tc of the nanocomposite when the OMMT content is 2 wt%.

关键词： Polypropylene Clay Compatibilization Nanocomposites.

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Improved Photovoltaic Performance from High Quality Perovskite Thin Film Grown with the Assistance of PC71BM

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Chinese Journal of Polymer Science 2017年第2期35卷 309-316页

作者： jie-huan chen shi-da yang wen-qing liu wei-fei fu 陈红征 Key Laboratory of Macromolecular Synthesis and Functionalization Ministry of Education State Key Laboratory of Silicon Materials Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China

The strategy of sequentially spin-coating a perovskite film from the perovskite precursor and an electron transporting layer of [6,6]-phenyl-C71-butyric acid methyl ester （PC71BM） is developed to simplify the fabrication procedure of perovskite solar cells. X-ray diffraction and scanning electron microscopy indicate that PCTIBM film on perovskite layer can retard the evaporation of dimethyl sulfoxide （DMSO） efficiently, thus prolonging the transformation of intermediate phase to perovskite crystals, leading to a high quality perovskite thin film. The solar cells with the structure of indium tin oxides （ITO）/poly（3,4-ethylenedioxythiophene）：poly（styrenesulfonate）（PEDOT：PSS）/CH3NH3PbI3/PC71BM/bathocuproine （BCP）/Ag made from this simplified method exhibit a higher efficiency （12.68%） than those from the conventional one-step method （9.49%）.

关键词： Perovskite solar cells Simplified preparation process Crystallization

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synthesis of Poly[6-(2,6-bis(1＇-methylbenzimidazolyl)pyridin-4-yloxy)hexyl acrylate](PBIP) and Magnetic Property of Its Neodymium Complex(PBIP-Nd^(3＋))

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Chinese Journal of Polymer Science 2016年第7期34卷 910-917页

作者： di-zheng liu 孙维林 rong ren yan-hua wang zhi-quan shen MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China

Homopolymer（PBIP） containing 2,6-bis（1＇-methylbenzimidazolyl）pyridine（Me BIP） ligands in the side chain was synthesized by RAFT polymerization and its kinetics was studied. Polymeric complex PBIP-Nd^3＋ was prepared by chelating PBIP with lanthanide ion Nd^3＋. The homopolymers and PBIP-Nd^3＋ complex were investigated by NMR, FTIR, GPC and TGA. The optical property of PBIP-Nd^3＋ complex was characterized by UV-Vis spectroscopy. The magnetic property of PBIP-Nd^3＋ complex was measured as a function of temperature（5 K to 300 K） and as a function of field（-3.98×10^6 A/m to 3.98×10^6 A/m）. These results indicated that PBIP-Nd^3＋ complex is paramagnetic.

关键词： 2 6-Bis（1-methylbenzimidazolyl）pyridine Magnetic RAFT Polymeric complex Neodymium

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Fabrication of microcapsule arrays on chemically patterned surfaces via covalent linking

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2009年第1期10卷 114-120页

作者： Jie YANG Chang-you GAO MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China

A method for fabricating arrays of microcapsules covalently immobilized onto chemically patterned substrates was *** core-shell microparticles with poly(allylamine hydrochloride)(PAH) as the outermost layer were obtained by layer-by-layer (LbL) assembly,which were further treated with glutaraldehyde to endow the particles with abundant aldehyde groups on their *** particles were then covalently coupled to the chemically patterned regions with amino groups created by microcontact printing (μCP).After dissolution of the core particles,arrays of the hollow microcapsules with unchanged structures were *** arrays could stand rigorous environmental conditions of higher ionic strength,and lower and higher pH ***,the technique could be possibly applied to exploiting chips of microcontainers or microreactors in sensing technology.

关键词： Array Microcapsules Microcontact printing （μCP） Covalent interaction

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Water Soluble Amino Grafted Silicon Nanoparticles and Their Use in Polymer Solar Cells

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Chinese Journal of Polymer Science 2014年第4期32卷 395-401页

作者： Quan-xiang Yan Zhuo-wei Gu Qi Li Wei-fei Fu Xiao-qiang Chen Wen-qing Liu Hong-bin Pan Mang Wang 陈红征 State Key Lab of Silicon Materials MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang University

Stable aqueous amino-grafted silicon nanoparticles （SiNPs-NH2） were prepared via one-pot solution method. By grafting amino groups on the particle surface, the dispersion of SiNPs in water became very stable and clear aqueous solutions could be obtained. By incorporating SiNPs-NH2 into the hole transport layer of poly（3,4- ethylenedioxythiophene）/polystyrene sulfonic acid （PEDOT＇PSS）, the performance of polymer solar cells composed of poly[2-methoxy,5-（2＇-ethylhexyloxy）-1,4-phenylene vinylene] （MEH-PPV）：[6,6]-phenyl-C61-butyric acid methyl ester （PCBM） as active layer can be improved. SiNPs-NH2 are dispersed uniformly in the PEDOT：PSS solution and help form morphologies with small-sized domains in the PEDOT：PSS film. SiNPs-NH2 serve as screens between conducting polymer PEDOT and ionomer PSS to improve the phase separation and charge transport of the hole transport layer. As a result, the sheet resistance of PEDOT：PSS thin films is decreased from （93 ±5） × 10^5 to （13 ± 3） × 10^5 Ω/□. The power conversion efficiency （PCE） of polymer solar cells was thus improved by 9.8% for devices fabricated with PEDOT＇PSS containing 1 wt% of SiNPs-NH2, compared with the devices fabricated by original PEDOT：PSS.

关键词： SiNPs-NH2 Water-soluble Phase separation Polymer solar cells Transport.

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