Liu, Rui; Wang, Shuangshuang; Fang, Shiming; Wang, Jialu; Chen, Jingjing; Huang, Xingguo; He, Xin; Liu, Changxiao
Liquid Crystalline Nanoparticles as an Ophthalmic Delivery System for Tetrandrine: Development, Characterization, and In Vitro and In Vivo Evaluation
The purpose of this study was to develop novel liquid crystalline nanoparticles (LCNPs) that display improved pre-ocular residence time and ocular bioavailability and that can be used as an ophthalmic delivery system for tetrandrine (TET). The delivery system consisted of three primary components, including glyceryl monoolein, poloxamer 407, and water,…
Contribution to Accurate Spherical Gold Nanoparticle Size Determination by Single-Particle Inductively Coupled Mass Spectrometry: A Comparison with Small-Angle X-ray Scattering
Geertsen, Valérie; Barruet, Elodie; Gobeaux, Frédéric; Lacour, Jean-Luc; Taché, Olivier
Small-angle X-ray scattering spectroscopy (SAXS) is the method of choice for nanoparticle diameter and concentration determination. On the one hand, it is metrologically traceable for spherical nanoparticle mean diameter determination and does not require any sample preparation or calibration. On the other hand, single-particle inductively coupled mass spectrometry (SPICPMS) is…
Effect of high molecular weight on pore formation and various properties of microporous membrane used for lithium-ion battery separator
Xu, Guan; Ding, Lei; Wu, Tong; Xiang, Ming; Yang, Feng
In this article, iPP cast films with high molecular weight in middle layer were prepared to investigate the effect of high molecular weight component on pore formation and mechanical strength. The results of DSC, SEM and 2D-XRD indicated that higher molecular weight and die draw ratio (DDR) would not alter…
Study on phase transition behavior and lamellar orientation of uniaxially stretched poly(ʟ-lactide) / cellulose nanocrystal-graft-poly(d-lactide) blend
Nagarajan, Selvaraj; Hu, Jian; Wu, Hao; Duan, Yongxin; Zhang, Jianming
Towards the development of high-performance green composites, the surface functionalized cellulose nanocrystals (CNC) have been widely used as reinforcement along with biopolymer. In our previous work, it has been demonstrated that CNC grafted with PDLA (CNC-g-PDLA) could improve the crystal nucleation density and heat distraction ability of PLLA matrix via…
Polymerization-induced self-assembly of liquid crystalline ABC triblock copolymers with long solvophilic chains
Huo, Meng; Wan, Zhengyi; Zeng, Min; Wei, Yen; Yuan, Jinying
Understanding the self-assembly of liquid crystalline (LC) block copolymers is challenging because of the complex influencing factors. In this article, we studied the influence of the solvophilic chain length on the self-assembly of the LC ABC triblock copolymer poly(N,N-dimethylaminoethyl methacrylate)-b-poly(benzyl methacrylate)-b-poly…
Linked-Acceptor Type Conjugated Polymer for High Performance Organic Photovoltaics with an Open-Circuit Voltage Exceeding 1 V
Xia, Benzheng; Lu, Kun; Zhao, Yifan; Zhang, Jianqi; Yuan, Liu; Zhu, Lingyun; Yi, Yuanping; Wei, Zhixiang
A linked-acceptor type conjugated polymer is designed and sythesized based on 4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzodithiophene (BDTT) and linked-thienopyrrole-4,6-dione (LTPD). This polymer uses alkyl-substituted thiophene as a bridge. The PBDTT-LTPD includes two TPD units in one repeating unit, which can enhance acceptor density in the polymer backbone and lower the…
Lamellar Peptide–Cadmium-Doped Zinc Oxide Nanohybrids That Emit White Light
Manna, Manoj K.; Verma, Shruti; Mukherjee, Shaibal; Das, Apurba K.
ChemPlusChem, 2016, vol 81, 3, pp. 329–337DOI:Back to the overview
Lamellar structures in fluorinated phosphonium ionic liquids: the roles of fluorination and chain length
Rauber, Daniel; Zhang, Peng; Huch, Volker; Kraus, Tobias; Hempelmann, Rolf
Ionic liquids (ILs) exhibit tunable behaviour and properties that are due to their supramolecular structure. We synthesized a series of alkylated and fluorinated phosphonium dicyanamide ILs to study the relation between molecular structure and assembly with a focus on the roles of cation chain length and fluorination. Small angle X-ray…
Lamellar Thickness Dependence of Crystal Modification Selection in the Syndiotactic Polystyrene γ-to-α/β Phase Transition Process
Wang, Hai; Wu, Chunji; Cui, Dongmei; Men, Yongfeng
The syndiotactic polystyrene (sPS) γ-to-α/β phase transition was investigated using temperature-dependent synchrotron wide-angle X-ray diffraction (WAXD) and small-angle X-ray scattering (SAXS) measurement. The sPS γ form samples, which were obtained from acetone solvent induced crystallization followed by annealing at various temperatures (Ta), exhibited a regular manner on the selection of…
Kinetics of Nucleation and Growth of Form II to I Polymorphic Transition in Polybutene-1 as Revealed by Stepwise Annealing
Qiao, Yongna; Wang, Qiao; Men, Yongfeng
Kinetics of II to I polymorphic transformation in isotactic polybutene-1 (PB-1) and its annealing temperature and time dependencies have been investigated by means of differential scanning calorimetry and in situ wide-angle X-ray diffraction techniques. The PB-1 samples were isothermally crystallized into metastable form II crystalline modification followed by annealing at…