Cui, Qianling; Xu, Jingsan; Shen, Guizhi; Zhang, Chao; Li, Lidong; Antonietti, Markus
Hybridizing Carbon Nitride Colloids with a Shell of Water-Soluble Conjugated Polymers for Tunable Full-Color Emission and Synergistic Cell Imaging
We present the preparation of a new multicolor emission system constructed from two complementary conjugated materials that are highly photoluminescent, that is, phenyl-modified carbon nitride (PhCN) colloids as the core and water-soluble conjugated polymers (WSCPs) adsorbed as the shell. The fluorescence bands of the PhCN and WSCPs effectively complement each…
Hybrid Starlike Block Copolymer POSS–(PDMAEMA-b-PNIPAm)8: Thermal Gelation and Its Blends with Poly(vinyl alcohol)
Zhou, Xin; Fan, Xiaoshan; He, Chaobin
A novel thermogelling polyhedral oligomeric silsesquioxane–poly(2-(dimethylamino)ethyl methacrylate-b-N-isopropylacrylamide), POSS–(PDMAEMA-b-PNIPAm)8, star-shaped block copolymer was synthesized by using RAFT polymerization. In aqueous solution this copolymer (≥10 wt %) underwent sol-to-gel transition as the temperature increased. The network structure and rheology properties of…
High Performance Graphene Oxide Based Rubber Composites
Mao, Yingyan; Wen, Shipeng; Chen, Yulong; Zhang, Fazhong; Panine, Pierre; Chan, Tung W.; Zhang, Liqun; Liang, Yongri; Liu, Li
In this paper, graphene oxide/styrene-butadiene rubber (GO/SBR) composites with complete exfoliation of GO sheets were prepared by aqueous-phase mixing of GO colloid with SBR latex and a small loading of butadiene-styrene-vinyl-pyridine rubber (VPR) latex, followed by their co-coagulation. During co-coagulation, VPR not only plays a key role in the prevention…
High open-circuit voltage ternary organic solar cells based on ICBA as acceptor and absorption-complementary donors
Fang, Jin; Deng, Dan; Zhang, Jianqi; Zhang, Yajie; Lu, Kun; Wei, Zhixiang
Ternary organic solar cells (OSCs) are fabricated with indene-C60 bisadduct (ICBA) as an electron acceptor and the low-band-gap polymer PBDTTT-C-T and the highly crystalline small molecule n-BDT-3T-CNCOO as electron donors. A high open-circuit voltage of 0.98 V is achieved, which is 0.2 V higher than that of ternary OSCs based…
High molecular weight poly(butylene succinate-co-furandicarboxylate) with 10mol% of BF unit: Synthesis, crystallization-melting behavior and mechanical properties
Peng, Shuangbao; Bu, Zhiyang; Wu, Linbo; Li, Bo-Geng; Dubois, Philippe
In this study, high molecular weight poly(butylene succinate-co-furandicarboxylate) with 10mol% of butylene furandicarboxylate unit (PBSF10) was synthesized and its crystal structure and crystallization-melting behaviors were investigated by means of WAXD, SAXS, DSC and POM. The tensile properties were also assessed. The crystal structure of PBSF10 is found to be the…
Highly Biodegradable and Tough Polylactic Acid–Cellulose Nanocrystal Composite
Muiruri, Joseph K.; Liu, Songlin; Teo, Wern Sze; Kong, Junhua; He, Chaobin
Poly(l-lactide) cellulose nanocrystals-filled nanocomposites were fabricated by blending of cellulose nanocrystals-g-rubber-g-poly(d-lactide) (CNC-rD-PDLA) and commercial PLLA, in which CNC-g-rubber was synthesized by ring opening polymerization (ROP) of d-lactide and a ε-caprolactone mixture to obtain CNC-P(CL-DLA), followed by further polymerization of d-lactide to obtain CNC-rD-PDLA. X-ray…
Highly active poly(3-hexylthiophene) nanostructures for photocatalysis under solar light
Floresyona, Dita; Goubard, Fabrice; Aubert, Pierre-Henri; Lampre, Isabelle; Mathurin, Jérémie; Dazzi, Alexandre; Ghosh, Srabanti; Beaunier, Patricia; Brisset, François; Remita, Samy; Ramos, Laurence; Remita, Hynd
Conjugated polymer nanostructures have recently emerged as a new class of very active photocatalysts under solar light. Poly(3-hexylthiophene) (P3HT) is one of the commonly used conjugated polymers for photovoltaics applications. P3HT nanostructures synthesized in soft templates provided by hexagonal mesophases show high photocatalytic activity for degradation of pollutants under both…
Hierarchical microstructure changes and the molecular mechanism of polypropylene under a critical failure strain during creep
Jia, Chenfei; Zhang, Qiongwen; Liao, Xia; Zhu, Jingjun; Wu, Lingyun; Ni, Kai; Yang, Qi; An, Zhu; Li, Guangxian
The hierarchical microstructure evolution of polypropylene during creep was explored via various methods, such as differential scanning calorimetry (DSC), scanning electron microscope (SEM), two-dimensional small-angle X-ray scattering (2D-SAXS), two-dimensional wide angle X-ray diffraction (2D-WAXD) and positron annihilation lifetime spectroscopy (PALS). The results revealed a correlation among…
Gold nanoparticle stabilization within tailored cubic mesoporous silica: Optimizing alcohol oxidation activity
Hong, Wei; Yan, Xiaoqing; Li, Renhong; Fan, Jie
Stabilizing gold nanoparticles (AuNPs) within a desired size range is critical to realize their promising catalytic performance in many important reactions. Herein, we investigate the anti-sintering properties of cubic mesoporous silica (FDU-12) as a function of pore entrance size. Simple adjustments to the type of organic template and reaction temperature…
Functional liquid crystalline gels through multi-scale hierarchical self-assembly of LAPONITE® and amidodiol
Narayanan, Rohini Kuttiplavil; Sadanandhan, Neethu Kalloor; Sasi, Renjith; Devaki, Sudha Janardhanan
Herein we demonstrate the design and synthesis of liquid crystalline gels through multi-scale hierarchical self-assembly of LAPONITE® and amidodiol in water. These two components interact with each other through non-covalent interactions, such as hydrogen bonding and ion–dipole interactions, to form highly ordered superstructures in different dimensions and length scales. Effects…