Fabrication and morphology control of hollow polymer particles by altering core particle size

2014 ◽  
Vol 292 (10) ◽  
pp. 2687-2694 ◽  
Author(s):  
Wei Deng ◽  
Huachao Guo ◽  
Wennan Zhang ◽  
Chengyou Kan
Keyword(s):  
Particle Size ◽  
Morphology Control ◽  
Core Particle ◽  
Polymer Particles

scholarly journals Morphology Control in 2D Carbon Nitrides: Impact of Particle Size on Optoelectronic Properties and Photocatalysis

2021 ◽  
pp. 2102468
Author(s):  
Julia Kröger ◽  
Alberto Jiménez‐Solano ◽  
Gökcen Savasci ◽  
Vincent W. h. Lau ◽  
Viola Duppel ◽  
...  
Keyword(s):  
Particle Size ◽  
Morphology Control ◽  
Optoelectronic Properties ◽  
Carbon Nitrides

Morphology and Rheological Analysis of Nanoclay in Polymer Modified Bitumen

2012 ◽  
Vol 509 ◽  
pp. 155-161 ◽  
Author(s):  
Ji Zhe Zhang ◽  
Martin Van de Ven ◽  
Shao Peng Wu
Keyword(s):  
Particle Size ◽  
Fluorescence Microscopy ◽  
Rheological Properties ◽  
Rheological Behaviour ◽  
Dynamic Shear ◽  
Polymer Particles ◽  
Modified Bitumen ◽  
Rheological Analysis ◽  
Fixed Proportion ◽  
Polymer Modified Bitumen

This paper investigated the influence of nanoclay on the properties of polymer modified bitumen(PMB). The nanoclay-polymer modified bitumen has been produced by mixing a standard 70/100 pen bitumen with polymer at a fixed proportion and then mixed with different amount of nanoclay. The rheological behaviour of the samples have been determined using dynamic shear rheometer. The morphology of the samples as well as the distribution of polymer and nanoclay throughout the bitumen have been characterized with a fluorescence microscopy. The result indicate that the rheological properties of nanoclay-polymer modified bitumens dependent on the percentage nanoclay. The morphology result shows that dispersed polymer particles existed in continuous bitumen phase and the addition of nanoclay does not seem to change the particle size of the polymer.

Novel Walnut-like Multihollow Polymer Particles: Synthesis and Morphology Control

Langmuir ◽  
2010 ◽  
Vol 26 (3) ◽  
pp. 1635-1641 ◽  
Author(s):  
Xueping Ge ◽  
Mozhen Wang ◽  
Hua Wang ◽  
Qiang Yuan ◽  
Xuewu Ge ◽  
...  
Keyword(s):  
Morphology Control ◽  
Polymer Particles

Miniemulsions of Vinyl Stearate. II. Light-Scattering Studies During the Polymerization

1989 ◽  
Vol 42 (12) ◽  
pp. 2085 ◽  
Author(s):  
E Elbing ◽  
AG Parts ◽  
CJ Lyons ◽  
BAW Coller ◽  
IR Wilson
Keyword(s):  
Particle Size ◽  
Light Scattering ◽  
Aqueous Medium ◽  
Particle Collision ◽  
Collision Theory ◽  
Polymer Particles ◽  
Final Particle ◽  
Emulsion Droplets

The course of the polymerization of vinyl stearate has been followed by dilatometry and by light scattering. Kinetically stable and visually clear or at most opalescent 'miniemulsions' were used to minimize the scattering (otherwise large) by emulsion droplets. Light-scattering results demonstrate that the final particle size of the latexes may be greater or less than that of the emulsion droplets in the starting miniemulsion. This suggests that polymer particles are nucleated from the aqueous (micelle-containing) phase, and grow by transport of vinyl stearate monomer through the aqueous medium from the emulsion droplets to feed polymerization in the particles. Thus the droplets gradually decrease in size and disappear when all the monomer has been taken up by absorption into micelles or into growing particles. A previously proposed droplet-particle collision theory does not appear to be necessary.

Morphology Control of Polymer Particles in Ethylene/Carbon Monoxide Copolymerization

2011 ◽  
Vol 50 (46) ◽  
pp. 10932-10935 ◽  
Author(s):  
Ji Hae Park ◽  
Kyoung Hwan Oh ◽  
Sung Hun Kim ◽  
Anish Cyriac ◽  
Jobi Kodiyan Varghese ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Morphology Control ◽  
Polymer Particles

scholarly journals Impact of Sample Concentration on the Determination of Particle Size of Nano Polymer Particles and Nano Liposomes by Dynamic Light Scattering

2019 ◽  
Vol 35 (2) ◽  
Author(s):  
Tran Thi Hai Yen ◽  
Le Thi Huyen ◽  
Tran Hong Nhung ◽  
Le Thi Thu Trang ◽  
Pham Thi Minh Hue
Keyword(s):  
Particle Size ◽  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Count Rate ◽  
Drug Loading ◽  
Publishing House ◽  
Nano Particles ◽  
Size Analysis ◽  
Polymer Particles

Determination of particles size is important in pharmaceutical research and manufacturing of drug delivery system in nano scale. This study was carried out to evaluate particles size of nano polymer particles, composed of Eudragit RL 100, and nano liposomes, composed of hydrogenated soy phosphatidylcholine and cholesterol. Dynamic light scaterring was used to determine nano particles size. The results showed that, dilution ratio influenced differently on the determined nanoparticles.  Liposomal suspension, which was diluted to count rate less than 170 kcps, had statistically significant larger particle than that, which had greater count rate. Polymer particles, which were diluted to count rate less than 126 had statistically significant larger particles than that, which had greater count rate. Keywords Particle size, nano polymer particle, nano liposomes, dynamic light scattering (DLS). References [1] E.H.M. Sakho, E. Allahyari, O.S. Oluwafemi, S. Thomas, and N. Kalarikkal, Dynamic Light Scattering (DLS) in: Thermal and rheological measurement techniqus for nanometerials characterization, Elsevier, Europe 2017.[2] V.X. Minh, P.T.M. Hue, Applications of nanotechnology and liposomes in Pharmaceuticals and cosmetics, Medical publishing house, Hanoi, 2013 (in Vietnamese).[3] ISO 22412:2017, Particle size analysis - Dynamic light scattering (DLS).[4] J. Panchal, J. Kotarek, E. Marszal, and E.M. Topp, Analyzing Subvisible Particles in Protein Drug Products: a Comparison of Dynamic Light Scattering (DLS) and Resonant Mass Measurement (RMM), AAPS J., 16(3) (2014) 440–451. http://doi.org/ 10.1208/s12248-014-9579-6.[5] A. Chaudhury et al, Lyophilization of cholesterol-free PEGylated liposomes and its impact on drug loading by passive equilibration, Int. J. Pharm., 430(1–2) (2012) 167–175. https://doi.org/10.1016/j.ijpharm.2012.04.036.[6] T. Ishida, H. Harashima, and H. Kiwada, Liposome clearance, Biosci. Rep., 22(2) (2002) 197–224. https://doi.org/10.1023/A:1020134521778.    

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