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Bean common mosaic virus (BCMV) was detected on common bean (Phaseolus vulgaris) plants showing wrinkled and/or narrow leaves, curling, shrinking and chlorosis of leaves, dwarfing of plants, and mottled pods in Inner Mongolia and named BCMV-22Huhe. Its genome has a size of 10,062 bp and was deposited in GenBank under the accession number OR778613. It is closely related to BCMV-Az (GenBank accession no. KP903372, in China) in the lineage of AzBMV. A recombination event was detected for BCMV-22Huhe among the 99 BCMV isolates published in the NCBI GenBank database, showing that BCMV-CJ25 (MK069986, found in Mexico) was a potential major parent, and the minor parent is unknown. This work is the first description of the occurrence of BCMV in Inner Mongolia, China. [ABSTRACT FROM AUTHOR]

Employing silicylacrylate and cationic acrylate as functional monomers, a novel silicylacrylate copolymer (SAC) antibacterial emulsion was successfully synthesized by soap-free emulsion polymerization. The effect of functional monomers, initiator and temperature on stability and antibacterial activity of SAC emulsion were investigated. Additionally, the morphology, structure and mechanical properties of SAC copolymer particles and film were characterized by FTIR, SEM, TEM and TGA. The results revealed that moderately increasing initiator and reaction temperature could largely improve conversion and reaction rate in the polymerization system. A balanced amount of silicylacrylate (10%) and cationic acrylate (6%) were not only capable of increasing the crosslinking property of SAC copolymer, but also endowing SAC emulsion with good homogeneity and stability. In conclusion, based on a non-toxic and non-biocide-release principle which could be regarded as a green and economic synthetic strategy, we obtained SAC coating with obvious antibacterial activity and excellent mechanical properties which enabled to be applied in antifouling coatings to prevent the undesirable accumulation of microorganisms on substrate surfaces. [ABSTRACT FROM AUTHOR]

Highlights: [•] Preparation of morphology controllable latex particles with controlling the multistage emulsion polymerization. [•] Preparation of uniform 100nm asymmetric Janus particles using a partial-encapsulation mechanism. [•] Partially encapsulated acorn-like latex particles with hydrophobic PSt-layer. [•] The hydrophilic cores could be fully encapsulated by the hydrophobic PSt-layer with adding moderate polarity PMMA interlayer. [Copyright &y& Elsevier]

A novel polyurea-crosslinked cationic acrylate copolymer (PUAM) with antibacterial activity, using 3-(methacryloylamino) propyl trimethyl- ammonium chloride (MPAC) as antibacterial functional monomer, had been successfully synthesized by via soap-free emulsion polymerization. The microscopic morphology analyses from SEM and TEM demonstrated that the resulting PUAM copolymer self-assembled into uniformly dispersed, nearly spherical nanoparticles, and its average diameter was close to 200 nm. The structure analyses consisted of FT-IR, TGA and some other basic performance tests revealed that the acrylate copolymer (PAM) was successfully combined with polyurea, and as expected, PUAM copolymer possessed high thermal stability and excellent mechanical properties. Antibacterial tests indicated that antibacterial monomer introduced here imparted PUAM copolymer emulsion with better dispersion stability and obvious antibacterial activity. Furthermore, the PUAM coating consisted of PUAM emulsion with nano-TiO 2 and other inorganic fillers was also successfully prepared and presented excellent antibacterial activity and mechanical properties. It could be applied as antibacterial coating to prevent the undesirable accumulation of microorganisms on substrate surface. [ABSTRACT FROM AUTHOR]

• The antimicrobial cationic acrylate-based copolymer (PAMs) was facilely synthesized via soap-free emulsion polymerization. • I PAMs exhibited excellent antibacterial properties based on quaternary ammonium compound of polymer chains. • Owing to effective combination between the inorganic filler and PAMs, the coatings are better than that of single materials. • The PAMs coating couldn't only decorate walls, but also improve environmental hygiene. Microorganism contamination on substrate surfaces is arousing increasingly concern as a serious health issue. In this study, we described fabricating antimicrobial cationic acrylate-based composite and investigating it as antimicrobial coatings of interior walls in buildings. Firstly, utilizing 3-(methacryloylamino) propyltrimethyl ammonium chloride (MPAC) and acrylates (BA, MMA) as monomers, a novel antimicrobial cationic acrylate-based copolymers (PAMs) was synthesized from surfactant-free emulsion polymerization (SfEP). The synthesis conditions, structures and physical properties of copolymers (PAMs) and its film (PAMs-F) were investigated through FT-IR, SEM, TEM and scratch test, etc. The results revealed that 6 % of MPAC and 0.5 % of KPS enabled the film-forming properties and enhanced conversion rate of PAMs, as well as endowed PAMs-F with significant antimicrobial activity. Furthermore, the PAMs based coating (PAMs-C) was prepared by PAMs and inorganic fillers. And the antimicrobial activity of PAMs-F and PAMs-C was measured, the effects of cationic monomer and nano-TiO 2 were also investigated. The results indicated that PAMs-C was able to use to protect the building interior wall from microbial contamination. [ABSTRACT FROM AUTHOR]