A Perspective on the Dynamics Properties in Polymer Nanocomposites

Chinese Journal of Polymer Science - Polymer nanocomposites (PNCs) usually have superior properties than pristine polymers. Understanding the dynamics properties in PNC system is crucial to reveal...     

Halogen-free Polymer Donors Based on 3,4-Dicyanothiophene for High-performance Polymer Solar Cells

Chinese Journal of Polymer Science - Polymer solar cells (PSCs) consisting of a polymer donor and a small molecular acceptor is a promising photovoltaic technology, whose device performance is...     

Stride Strategy to Enable a Quasi-ergodic Search of Reaction Pathways Demonstrated by Ring-opening Polymerization of Cyclic Esters

Coordination-insertion ring-opening polymerization(ROP) of cyclic esters is an industrial way to synthesize polyesters, which are widely applied in biomedical and environment-benign fields. However, the rate-determining transition state(TS) identified by the conventional reaction pathways(pathway A and pathway B) presented in the literature did not well describe the structure-reactivity relationship. The misidentification of the rate-determining TS might arise from the less ergodicity in the sea...     

Modifying Poly(propylene carbonate) with Furan-based Non-Isocyanate Polyurethanes

Chinese Journal of Polymer Science - Poly(propylene carbonate) (PPC) is gaining significant momentum as a biodegradable polymer using CO2 as an abundant, low-cost and renewable feedstock. Yet, PPC...     

Chinese Journal of Polymer Science

1 Aims and Scope Chinese Journal of Polymer Science (CJPS)is a bimonthly journal published in English and sponsored by the Chinese Chemical Society and the Institute of Chemistry, Chinese Academy of Sciences. CJPS is edited by a distinguished Editorial Board headed by Professor Fosong Wang and supported by an International Advisory Board in which many famous     

Benzimidazolium functionalized polysulfone-based anion exchange membranes with improved alkaline stability

The stability of anion exchange membranes(AEMs) is an important feature of alkaline exchange membrane fuel cells(AEMFCs), which has been extensively studied. However it remains a real challenge due to the harsh working condition. Herein, we developed a novel type of polysulfone-based AEMs with three modified 1,2-dimethylbenzimidazoliums containing different substitutes at C4-and C7-position. The results showed that the introduction of the substitutes could obviously improve the dimensional and alkaline stabilities of the corresponding membranes. The swelling ratios of resultant AEMs were all lower than 10% after water immersion. The membrane with 4,7-dimethoxy-1,2-dimethylbenzimidazolium group exhibited the highest alkaline stability. Only 9.2% loss of hydroxide conductivity was observed after treating the membrane in 1 mol·L~(-1) KOH solution at 80 °C for 336 h. Furthermore, the density functional theory(DFT) study on the three functional group models showed that the substitutes at C4-and C7-position affected the lowest unoccupied molecular orbital(LUMO) energies of the different 1,2-dimethylbenzimidazolium groups.     

IL-2-loaded Polypeptide Nanoparticles for Enhanced Anti-cancer Immunotherapy

Interleukin 2(IL-2) is widely used as an active immunotherapeutic agent in clinical metastatic cancers. However, its therapeutic concentrations do not last long due to its short half-life. Thus, only a transient proliferation of the anti-cancer CD8⁺ T cells can be achieved,resulting in poor efficacy. Therefore, the aim of this work was to create a system that promotes CD8⁺ T cell proliferation at the tumor site using IL-2 persistently present and activates an anti-cancer im...     

Recent Research Progress of n-Type Conjugated Polymer Acceptors and All-Polymer Solar Cells

The active layer of all polymer solar cells(all-PSCs) is composed of a blend of a p-type conjugated polymer(p-CP) as donor and an n-type conjugated polymer(n-CP) as acceptor. All-PSCs possess the advantages of light weight, thin active layer, mechanical flexibility, low cost solution processing and high stability, but the power conversion efficiency(PCE) of the all-PSCs was limited by the poor photovoltaic performance of the n-CP acceptors before 2016. Since the report of the strategy of polymer...     

High-Performance Biodegradable PBAT/PPC Composite Film Through Reactive Compatibilizer

Poly(butylene adipate-co-terephthalate)(PBAT) is currently the largest commercial biodegradable plastics with good toughness and film forming properties, whereas, the inferior barrier and mechanical properties hinder its applications. Biodegradable poly(propylene carbonate)(PPC) with excellent barrier properties and high strength is a natural choice to address above issue. However, it is challenging to improve the compatibility of these two polymers. Herein, we prepared a reactive compatibilizer...     

3-Methylcyclohexanone Processed n-Channel Organic Thin-Film Transistors Based on A Conjugated Polymer Synthesized by Direct Arylation Polycondensation

The solubility of a direct arylation polycondensation(DArP) synthesized conjugated polymer,i.e.,poly(3,6-bis(furan-2-yl)-2,5-bis(4-tetradecyloctadecyl)-pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione-alt-1,2-bis(3,4-d ifl uorothien-2-yl)ethene)(PFuD PP-4FTVT),in variou s organic solvents was studied.The polymer is soluble in 3-methylcyclohexanone(3-MC),a green solvent from peppermint oil,besides other solvents such as anisole,cyclopentyl methyl ether(CPME) and o-dichlorobenzene(o-DCB),etc.Based on the Ha...     

Excellent Compatibilization Effect of a Dual Reactive Compatibilizer on the Immiscible MVQ/PP Blends

Methyl vinyl silicone rubber(MVQ)/polypropylene(PP) thermoplastic vulcanizate(TPV) combines the good melt processability,recyclability and sealing performance as well as biosafety, stain and fluid resistance, and thus it is especially suitable in bio-safety areas and wearable electronic devices, etc. Nevertheless, the compatibility between MVQ and PP phases is poor. A big challenge on the compatibilization of MVQ/PP blends is that neither MVQ nor PP contains any reactive groups. In this study, a...     

Architecting Branch Structure in Terpolymer of CO2, Propylene Oxide and Phthalic Anhydride: An Enhancement in Thermal and Mechanical Performances

Chinese Journal of Polymer Science - Poly(propylene carbonate phthalate) (PPC-P) is a chemically modified poly(propylene carbonate) (PPC) biodegradable thermoplastic by introducing phthalic...     

A Facile Strategy to Enhance the Formation of Stereocomplex Crystallites in Poly(L-lactic acid)/Poly(D-lactic acid) Blend with High Molecular Weights

Chinese Journal of Polymer Science - Blending of poly(levorotatory-lactic acid) (PLLA) and poly(dextrorotatory-lactic acid) (PDLA) produces the stereocomplex crystallites (PLA SC), which present...     

Mechanically Robust Polylactide Fibers with Super Heat Resistance via Constructing in situ Nanofibrils

Chinese Journal of Polymer Science - All-PLA fibers with excellent comprehensive performance and recycling convenience are realized efficiently. High molecular weight poly(D-lactide) (HPDLA) is...     

Robust Poly(glycolic acid) Films with Crystal Orientation and Reinforcement of Chain Entanglement Network

The inherent brittleness of biodegradable poly(glycolic acid)(PGA) restricts its utilization in the packaging field. Traditional toughening methods usually require additional components accompanied by a sacrifice of strength. In the present work, PGA films with simultaneously enhanced strength and ductility are achieved via “casting-stretching-annealing” technology. The reinforced chain entanglement network of PGA induced by the intense extensional stress and the highly oriented crystals grown a...     

Polar Phase Formation and Piezoelectricity of PVDF by Hot-pressing under Electrostatic Intermolecular Interactions

Chinese Journal of Polymer Science - Piezoelectric poly(vinylidene fluoride) (PVDF) has received considerable attention due to its ability of interconverting mechanical into electric energies and...     

Controllable Preparation of Branched Polyolefins with Various Microstructural Units via Chain-walking Ethylene and Pentene Polymerizations

Chinese Journal of Polymer Science - Branched polyolefins with controllable topology structures were generated from the chain-walking (co)polymerizations of ethylene, 1-pentene (1P) and 2-pentene...     

Advances in Green-Solvent-Processable All-Polymer Solar Cells

Chinese Journal of Polymer Science - All-polymer solar cells (all-PSCs) have significantly improved long-term stability and mechanical stretchability. The power conversion efficiency (PCE) of...     

Double-Cable Conjugated Polymers with Fullerene Pendant for Single-Component Organic Solar Cells

Chinese Journal of Polymer Science - In this work, the “functionalization-polymerization” (FP) method has been used to construct fullerene-contained double-cable conjugated polymers...     

Tailoring the Crystallization Behavior and Mechanical Property of Poly(glycolic acid) by Self-nucleation

Chinese Journal of Polymer Science - Biocompostable poly(glycolic acid) (PGA) crystallizes slowly under fast cooling condition, leading to poor mechanical performance of the final products. In this...