Particle-forming precipitation polymerization under unusual conditions

2004 ◽  
pp. 164-167
Author(s):  
T. Takahashi ◽  
H. Fukazawa ◽  
H. Kawaguchi
Keyword(s):  
Precipitation Polymerization

scholarly journals Precipitation Polymerization: Precisely Controlled Microsphere Design via Visible‐Light Cross‐Linking of Functional Prepolymers (Adv. Funct. Mater. 26/2020)

2020 ◽  
Vol 30 (26) ◽  
pp. 2070173
Author(s):  
Jordan P. Hooker ◽  
Florian Feist ◽  
Laura Delafresnaye ◽  
Leonie Barner ◽  
Christopher Barner‐Kowollik
Keyword(s):  
Visible Light ◽  
Precipitation Polymerization ◽  
Cross Linking

scholarly journals Self-Stable Precipitation Polymerization Molecular Entanglement Effect and Molecular Weight Simulations and Experiments

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2243
Author(s):  
Jiali Qu ◽  
Yi Gao ◽  
Wantai Yang
Keyword(s):  
Molecular Weight ◽  
Maleic Anhydride ◽  
Molecular Conformation ◽  
Average Molecular Weight ◽  
Precipitation Polymerization ◽  
Radius Of Gyration ◽  
Propagation Mechanism ◽  
Reactive Molecular Dynamics ◽  
End Distance ◽  
Good Agreement

In this paper, we developed a reactive molecular dynamics (RMD) scheme to simulate the Self-Stable Precipitation (SP) polymerization of 1-pentene and cyclopentene (C5) with maleic anhydride (MAn) in an all-atom resolution. We studied the chain propagation mechanism by tracking the changes in molecular conformation and analyzing end-to-end distance and radius of gyration. The results show that the main reason of chain termination in the reaction process was due to intramolecular cyclic entanglement, which made the active center wrapped in the center of the globular chain. After conducting the experiment in the same condition with the simulation, we found that the distribution trend and peak value of the molecular-weight-distribution curve in the simulation were consistent with experimental results. The simulated number average molecular weight (Mn) and weight average molecular weight (Mw) were in good agreement with the experiment. Moreover, the simulated molecular polydispersity index (PDI) for cyclopentene reaction with maleic anhydride was accurate, differing by 0.04 from the experimental value. These show that this model is suitable for C5–maleic anhydride self-stable precipitation polymerization and is expected to be used as a molecular weight prediction tool for other maleic anhydride self-stable precipitation polymerization system.

The next step in precipitation polymerization of N-isopropylacrylamide: particle number density control by monochain globule surface charge modulation

2016 ◽  
Vol 7 (32) ◽  
pp. 5123-5131 ◽  
Author(s):  
O. L. J. Virtanen ◽  
M. Brugnoni ◽  
M. Kather ◽  
A. Pich ◽  
W. Richtering
Keyword(s):  
Particle Size ◽  
Robust Control ◽  
Surface Charge ◽  
Particle Number ◽  
Particle Number Density ◽  
Precipitation Polymerization ◽  
Number Density ◽  
Density Control ◽  
Charge Modulation

Many applications of poly(N-isopropylacrylamide) microgels necessitate robust control over particle size.

Roles of Proton in the Formation of Microspheres: Precipitation Polymerization of Styrene in Alcohols by Using AIBN as Initiator

2021 ◽  
Vol 6 (27) ◽  
pp. 6926-6936
Author(s):  
Xiuhang Xu ◽  
Haihua Yu ◽  
Yunfei Xia ◽  
Jiajia Qian ◽  
Fei Wang ◽  
...  
Keyword(s):  
Precipitation Polymerization

Rheological Properties of Microgel Prepared with Long-Chain Crosslinkers by a Precipitation Polymerization Method

2011 ◽  
Vol 51 (5) ◽  
pp. 880-896 ◽  
Author(s):  
H. Es-Haghi ◽  
H. Bouhendi ◽  
G. Bagheri Marandi ◽  
M. J. Zohurian-Mehr ◽  
K. Kabiri
Keyword(s):  
Rheological Properties ◽  
Precipitation Polymerization ◽  
Polymerization Method ◽  
Long Chain

Synthesis, optimization, and characterization of poly (Styrene-co-Acrylonitrile) copolymer prepared via precipitation polymerization

2017 ◽  
Vol 37 (6) ◽  
pp. 2021-2029 ◽  
Author(s):  
Mohamed R. El-Aassar ◽  
Mamdouh S. Masoud ◽  
Marwa F. Elkady ◽  
Ahmed A. Elzain
Keyword(s):  
Precipitation Polymerization ◽  
Acrylonitrile Copolymer

METHYL METHACRYLATE AS FUNCTIONAL MONOMER FOR ETHYLMORPHINE-IMPRINTED POLYMERS IN BUTANOL USING BULK AND PRECIPITATION POLYMERIZATION

2021 ◽  
Vol 14 (01) ◽  
pp. 424-432
Author(s):  
S.A. Ramadhan ◽  
D. Fauzi ◽  
B.Z. Witka ◽  
D. Rahayu ◽  
A. N. Hasanah
Keyword(s):  
Methyl Methacrylate ◽  
Precipitation Polymerization ◽  
Functional Monomer ◽  
Imprinted Polymers
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