Colloidal Stability Analysis of a Core-Shell Emulsion Polymerization

2001 ◽  
pp. 13-22 ◽  
Author(s):  
E. C. Kostansek
Keyword(s):  
Stability Analysis ◽  
Emulsion Polymerization ◽  
Colloidal Stability ◽  
Core Shell

Hollow core-shell particles via NR latex seeded emulsion polymerization

Polymer ◽  
2016 ◽  
Vol 99 ◽  
pp. 324-331 ◽  
Author(s):  
Waraporn Wichaita ◽  
Duangporn Polpanich ◽  
Teeraporn Suteewong ◽  
Pramuan Tangboriboonrat
Keyword(s):  
Emulsion Polymerization ◽  
Core Shell ◽  
Hollow Core ◽  
Seeded Emulsion Polymerization ◽  
Shell Particles

Toughening of an epoxy thermoset with poly[styrene-alt-(maleic acid)]-block-polystyrene-block-poly(n-butyl acrylate) reactive core–shell particles

RSC Advances ◽  
2016 ◽  
Vol 6 (42) ◽  
pp. 35621-35627 ◽  
Author(s):  
Ren He ◽  
Xiaoli Zhan ◽  
Qinghua Zhang ◽  
Fengqiu Chen
Keyword(s):  
Emulsion Polymerization ◽  
Maleic Acid ◽  
Butyl Acrylate ◽  
Chain Transfer ◽  
Core Shell ◽  
Reversible Addition ◽  
Raft Agent ◽  
Shell Particles

Reactive core–shell particles for epoxy toughening were synthesized via reversible addition–fragmentation chain transfer emulsion polymerization mediated by an amphiphilic macro-RAFT agent followed by core-crosslinking to increase stability.

scholarly journals Co-Delivery of mRNA and pDNA Using Thermally Stabilized Coacervate-Based Core-Shell Nanosystems

Pharmaceutics ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1924
Author(s):  
Sarah S. Nasr ◽  
Sangeun Lee ◽  
Durairaj Thiyagarajan ◽  
Annette Boese ◽  
Brigitta Loretz ◽  
...  
Keyword(s):  
Messenger Rna ◽  
Colloidal Stability ◽  
Transfection Efficiency ◽  
Thermal Stabilization ◽  
Shielding Effect ◽  
Core Shell ◽  
Nucleic Acid Delivery ◽  
Fluorescent Reporter ◽  
Shell System ◽  
Pharmaceutical Application

Co-delivery of different species of protein-encoding polynucleotides, e.g., messenger RNA (mRNA) and plasmid DNA (pDNA), using the same nanocarrier is an interesting topic that remains scarcely researched in the field of nucleic acid delivery. The current study hence aims to explore the possibility of the simultaneous delivery of mRNA (mCherry) and pDNA (pAmCyan) using a single nanocarrier. The latter is based on gelatin type A, a biocompatible, and biodegradable biopolymer of broad pharmaceutical application. A core-shell nanostructure is designed with a thermally stabilized gelatin–pDNA coacervate in its center. Thermal stabilization enhances the core’s colloidal stability and pDNA shielding effect against nucleases as confirmed by nanoparticle tracking analysis and gel electrophoresis, respectively. The stabilized, pDNA-loaded core is coated with the cationic peptide protamine sulfate to enable additional surface-loading with mRNA. The dual-loaded core-shell system transfects murine dendritic cell line DC2.4 with both fluorescent reporter mRNA and pDNA simultaneously, showing a transfection efficiency of 61.4 ± 21.6% for mRNA and 37.6 ± 19.45% for pDNA, 48 h post-treatment, whereas established commercial, experimental, and clinical transfection reagents fail. Hence, the unique co-transfectional capacity and the negligible cytotoxicity of the reported system may hold prospects for vaccination among other downstream applications.

Toughening modification of PS withn-BA/MMA/styrene core-shell structured copolymer from emulsifier-free emulsion polymerization

2003 ◽  
Vol 90 (5) ◽  
pp. 1290-1297 ◽  
Author(s):  
T. Y. Guo ◽  
G. L. Tang ◽  
G. J. Hao ◽  
M. D. Song ◽  
B. H. Zhang
Keyword(s):  
Emulsion Polymerization ◽  
Core Shell ◽  
Toughening Modification

Preparation and characterization of oxidized starch-graft-poly(styrene-butyl acrylate) latex via emulsion polymerization

2014 ◽  
Vol 34 (7) ◽  
pp. 611-616 ◽  
Author(s):  
Shijie Cheng ◽  
Jun Xu ◽  
Yumin Wu
Keyword(s):  
Emulsion Polymerization ◽  
Butyl Acrylate ◽  
Colloidal Stability ◽  
Graft Copolymerization ◽  
Scanning Calorimetry ◽  
Oxidized Starch ◽  
Ir Transmission ◽  
Ft Ir ◽  
Synthetic Latex

Abstract Oxidized starch-graft-poly(styrene-butyl acrylate) [OS-g-P(St-BA)] latex was synthesized by the graft copolymerization of OS with St and n-butyl acrylate (BA) via emulsion polymerization. The graft copolymers were characterized by Fourier transform infrared (FT-IR), transmission electronic microscopy (TEM), dynamic light scattering, thermogravimetry (TG), and differential scanning calorimetry (DSC). The effects of the amount of OS, monomers, and initiator on graft copolymerization were investigated. Under the optimal conditions, the percentage of graft (PG), grafting efficiency (GE), and ζ potential could reach 256.5%, 41.7%, and -30.1 mV, respectively. The results indicated that the OS grafted onto particles greatly enhanced the colloidal stability of latex. The thermal stability properties of OS-g-P(St-BA) were also improved by the addition of OS. The OS-g-P(St-BA) latex may be used to partly replace the conventional synthetic latex for paper coating.

Internal stress of epoxy resin modified with acrylic core-shell particles prepared by seeded emulsion polymerization

1986 ◽  
Vol 32 (5) ◽  
pp. 4865-4871 ◽  
Author(s):  
Yoshinobu Nakamura ◽  
Haruo Tabata ◽  
Hideto Suzuki ◽  
Kazuo Iko ◽  
Masayoshi Okubo ◽  
...  
Keyword(s):  
Epoxy Resin ◽  
Internal Stress ◽  
Emulsion Polymerization ◽  
Core Shell ◽  
Seeded Emulsion Polymerization ◽  
Shell Particles

Synthesis of core-shell fluoroacrylate copolymer latex via emulsion polymerization and its application in ink-jet ink

2012 ◽  
Vol 126 (1) ◽  
pp. 110-115 ◽  
Author(s):  
Xuefeng Li ◽  
Jingfang Zhang ◽  
Xingping Zhou ◽  
Chuan Lu ◽  
Xiantao Tong ◽  
...  
Keyword(s):  
Emulsion Polymerization ◽  
Core Shell ◽  
Ink Jet

A small heterobifunctional ligand provides stable and water dispersible core–shell CdSe/ZnS quantum dots (QDs)

Nanoscale ◽  
2018 ◽  
Vol 10 (42) ◽  
pp. 19720-19732 ◽  
Author(s):  
Gianluca Salerno ◽  
Simona Scarano ◽  
Marianna Mamusa ◽  
Marco Consumi ◽  
Stefano Giuntini ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Colloidal Stability ◽  
Core Shell ◽  
Water Dispersible

A small heterobifunctional ligand provides easy to handle and hydrophilic QDs with enhanced colloidal stability.

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