Effect of unmodified kraft lignin concentration on the emulsion and miniemulsion copolymerization of styrene with n -butyl acrylate and methacrylic acid to produce polymer hybrid latex

2017 ◽  
Vol 29 (3) ◽  
pp. 1094-1106 ◽  
Author(s):  
Nigel Roderick Messmer ◽  
Lilia Müller Guerrini ◽  
Maurício Pinheiro Oliveira
Keyword(s):  
Methacrylic Acid ◽  
Butyl Acrylate ◽  
Kraft Lignin ◽  
Lignin Concentration ◽  
Polymer Hybrid ◽  
Hybrid Latex

scholarly journals Synthesis of Poly(methacrylic acid-co-butyl acrylate) Grafted onto Functionalized Carbon Nanotube Nanocomposites for Drug Delivery

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 533 ◽  
Author(s):  
Josué A. Torres-Ávalos ◽  
Leonardo R. Cajero-Zul ◽  
Milton Vázquez-Lepe ◽  
Fernando A. López-Dellamary ◽  
Antonio Martínez-Richa ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Drug Delivery ◽  
Methacrylic Acid ◽  
Butyl Acrylate ◽  
Chemical Vapor ◽  
Vis Spectroscopy ◽  
Ir And Raman Spectroscopies ◽  
Ft Ir

Design of a smart drug delivery system is a topic of current interest. Under this perspective, polymer nanocomposites (PNs) of butyl acrylate (BA), methacrylic acid (MAA), and functionalized carbon nanotubes (CNTsf) were synthesized by in situ emulsion polymerization (IEP). Carbon nanotubes were synthesized by chemical vapor deposition (CVD) and purified with steam. Purified CNTs were analyzed by FE-SEM and HR-TEM. CNTsf contain acyl chloride groups attached to their surface. Purified and functionalized CNTs were studied by FT-IR and Raman spectroscopies. The synthesized nanocomposites were studied by XPS, 13C-NMR, and DSC. Anhydride groups link CNTsf to MAA–BA polymeric chains. The potentiality of the prepared nanocomposites, and of their pure polymer matrices to deliver hydrocortisone, was evaluated in vitro by UV–VIS spectroscopy. The relationship between the chemical structure of the synthesized nanocomposites, or their pure polymeric matrices, and their ability to release hydrocortisone was studied by FT-IR spectroscopy. The hydrocortisone release profile of some of the studied nanocomposites is driven by a change in the inter-associated to self-associated hydrogen bonds balance. The CNTsf used to prepare the studied nanocomposites act as hydrocortisone reservoirs.

Emulsion copolymerization of butyl acrylate with methacrylic acid

1989 ◽  
Vol 31 (11) ◽  
pp. 2542-2548 ◽  
Author(s):  
S.A. Kulikov ◽  
N.V. Yablokova ◽  
T.V. Nikolayeva ◽  
Yu.A. Aleksandrov
Keyword(s):  
Methacrylic Acid ◽  
Butyl Acrylate ◽  
Emulsion Copolymerization

Highly stretchable, self-healing, and 3D printing prefabricatable hydrophobic association hydrogels with the assistance of electrostatic interaction

2020 ◽  
Vol 11 (29) ◽  
pp. 4741-4748
Author(s):  
Heng Chen ◽  
Beibei Hao ◽  
Penghui Ge ◽  
Shaojun Chen
Keyword(s):  
3D Printing ◽  
Electrostatic Interaction ◽  
Methacrylic Acid ◽  
Butyl Acrylate ◽  
Hydrophobic Association ◽  
Self Healing ◽  
Ethyl Methacrylate ◽  
Highly Stretchable ◽  
Physically Crosslinked

Self-healing and 3D printing prefabricatable physically crosslinked hydrogels were prepared by copolymerization of butyl acrylate, 2-(dimethylamino)ethyl methacrylate, and methacrylic acid, followed by soaking in water.

Syntheses of Ethyl Cellulose Acrylate Hybrid Latex via Mini-Polymerization

2011 ◽  
Vol 250-253 ◽  
pp. 804-808
Author(s):  
Ri Qing Chen ◽  
Fu Xiang Chu ◽  
Chun Peng Wang ◽  
Elodie Bourgeat-Lami ◽  
Muriel Lansalot
Keyword(s):  
Particle Size ◽  
Methyl Methacrylate ◽  
Butyl Acrylate ◽  
Ethyl Cellulose ◽  
Reaction System ◽  
Monomer Conversion ◽  
Polymerization Process ◽  
The Stability ◽  
Hybrid Latex ◽  
Monomer Droplet

Ethyl cellulose was hybridized with methyl methacrylate and butyl acrylate via mini-polymerization. The polymerization process was traced to obtain a stable reaction system. The effects of the EC content and viscosity on the monomer droplet size, the particle size and the monomer conversion were investigated. It was showed that the stability of the latex dispersion was strongly dependent of the EC content and viscosity. With investigation on ethyl cellulose series, initiator and crosslinker, the stable mini-emulsion with 10% ethyl cellulose was obtained under conditions of crosslinker and LPO as initiator.

scholarly journals Synthesis Polymer Styrene Butadiene Hybrid Latex with Laponite Organoclay as Filler via Emulsion Polymerization Technique for Application in Paper Coating

2019 ◽  
Author(s):  
Bambang Soegijono ◽  
Johannes Chanra ◽  
Zhongwu Zheng ◽  
Puke Mi
Keyword(s):  
Emulsion Polymerization ◽  
Chemical Properties ◽  
Batch Process ◽  
Polymerization Process ◽  
Coated Paper ◽  
Polymer Hybrid ◽  
Stainless Steel Reactor ◽  
Triphenylphosphonium Bromide ◽  
Styrene Butadiene ◽  
Hybrid Latex

Synthesis of styrene butadiene hybrid latex was performed via emulsion polymerization technique using various amount of laponite clay as filler. Laponite clay was modified with cationic surfactant methyl triphenylphosphonium bromide (MTPB) with ion exchange technique prior to polymerization process. The main objective of the modification is to render the surface of the clay layers to more organophilic. Emulsion polymerization was performed under semi batch process using 2 L laboratory stainless steel reactor with temperature 85°C to 90°C for 8 hours. Polymer hybrid styrene butadiene latex was characterized for its physical and chemical properties with standard ASTM Methods. Characterization of its binding and printing properties were carried out with standard testing method (TAPPI Methods) using single coating formulation on 80 gsm woodfree paper. Polymer hybrid latex based on styrene and butadiene monomers with laponite clay enhanced binding and printing properties of coated paper, addition of laponite clay to 6.0 wt % increased the binding resistance of the coated paper two times higher than pure latex. Reducing binder level become possible for cost saving.

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