Preparation of polyethylene-g-(polyacrylic acid) and its sodium salt ionomer by in-situ chlorinating graft copolymerization

e-Polymers ◽  
2011 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhi-Qiang Zhao ◽  
Shuang-Shuang Wang ◽  
Na Wang ◽  
Ji-Ruo Zhao ◽  
Ying Feng
Keyword(s):  
Acrylic Acid ◽  
Graft Copolymer ◽  
Sodium Salt ◽  
Graft Copolymerization ◽  
Monomer Concentration ◽  
Gel Permeation Chromatography ◽  
Reaction Process ◽  
Side Reactions ◽  
Chlorinated Polyethylene

AbstractAcrylic acid (AA) was grafted firstly onto high density polyethylene (HDPE) by in-situ chlorinating graft copolymerization (ISCGC), so a graft copolymer composed of chlorinated polyethylene (CPE) as backbone and poly (acrylic acid) (PAA) as branched chains was synthesized. And subsequently the preparation of its carboxylated ionmers was studied. This work was focused on discussing the reaction process for grafting AA onto HDPE by ISCGC and the preparing of carboxylated ionmers of CPE. In this paper, the structure of graft copolymer and the ionomer were characterized mainly by FT-IR, gel permeation chromatography (GPC) and graft degree (GD). The influence factors which related to the main and side reactions, including the monomer concentration, chlorine contents of the product, and reaction temperature were investigated. Additionally, effects of these factors on reaction process controlling were described. The aim of above is to investigate how CPE-cg-PAA and its sodium-salt ionomer were prepared.

Study of Irradiation Hydrophilic Modification of Polypropylene Meltblown Nonwovens

2012 ◽  
Vol 627 ◽  
pp. 348-352
Author(s):  
Lei Xia ◽  
Peng Xi ◽  
Bo Wen Cheng
Keyword(s):  
Acrylic Acid ◽  
Technology Use ◽  
Irradiation Dose ◽  
Graft Copolymerization ◽  
Breaking Strength ◽  
Monomer Concentration ◽  
High Energy ◽  
Hydrophilic Modification ◽  
Energy Beam ◽  
Irradiation Technology

In this paper, we took the co-irradiation technology, use the high-energy beam irradiate the polypropylene meltblown nonwovens which soaked with acrylic acid, so that the graft copolymerization reaction was occurred between the acrylic and the polypropylene, the influence of acrylic acid concentration and the irradiation dose to the hydrophilic properties and breaking strength were studied. The results shows that when the monomer concentration was between 2% and 8% and the irradiation dose was between 10kGy and 50 kGy, the hydrophilic properties increased with the increasing of the monomer concentration and irradiation dose. But the breaking strength wasn’t affected.

Synthesis of chlorinated and anhydride-modified low density polyethylene by solid-phase chlorination and grafting—improving the adhesion of a film-forming polymer

RSC Advances ◽  
2014 ◽  
Vol 4 (24) ◽  
pp. 12490-12496 ◽  
Author(s):  
Yuan Wang ◽  
Lijuan Liu ◽  
Zhao Jing ◽  
Jiruo Zhao ◽  
Ying Feng
Keyword(s):  
Maleic Anhydride ◽  
Graft Copolymerization ◽  
Solid Phase ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Chlorinated Polyethylene ◽  
Film Forming

Maleic anhydride was grafted onto high chlorinated polyethylene made of low density polyethylene (LHCPE) prepared from low density polyethylene by in situ chlorinating graft copolymerization, to improve the adhesion.

In situ preparation of Tricholoma mushroom polysaccharide-g-poly(N,N-dimethyl acrylamide-co-acrylic acid)–CuO composite nanoparticles for highly sensitive and selective sensing of Th4+ in aqueous medium

2018 ◽  
Vol 42 (24) ◽  
pp. 19707-19719 ◽  
Author(s):  
Barun Mondal ◽  
Jagabandhu Ray ◽  
Subinoy Jana ◽  
Sunil K. Bhanja ◽  
Tridib Tripathy
Keyword(s):  
Acrylic Acid ◽  
Aqueous Medium ◽  
Graft Copolymer ◽  
Electrochemical Method ◽  
Composite Nanoparticles ◽  
In Situ Preparation ◽  
Highly Sensitive ◽  
Sensitive Sensor ◽  
First Time

A highly selective and sensitive sensor for Th4+ was developed for the first time using Tricholoma mushroom polysaccharide-based graft copolymer–CuO composite nanoparticles by colorimetric and electrochemical method.

scholarly journals CHARACTERISTIC OF ACRYLIC ACID GRAFTED POLYETHYLENE FILM PREPARED BY GAMMA IRRADIATION METHOD

2010 ◽  
Vol 8 (1) ◽  
pp. 18-24
Author(s):  
John Hendri ◽  
Irwan Ginting Suka ◽  
Wasinton Simanjuntak ◽  
Annisa Annisa ◽  
Gatot Gatot
Keyword(s):  
Acrylic Acid ◽  
Gamma Irradiation ◽  
Graft Copolymerization ◽  
Irradiation Time ◽  
Monomer Concentration ◽  
Gravimetric Method ◽  
Absorption Capacity ◽  
Wave Number ◽  
Physical Endurance ◽  
Cupric Ion

In this study, high density polyethylene (PE) film (thickness 80 μm) was modified by grafting of acrylic acid (AA) onto the film using 15 kGy of g irradiation as initiator, applied at different exposure times. In addition to irradiation dose, other variables investigated are concentration of AA, the type of solvent, and polymerization time carried out at 60 oC. The success of the graft copolymerization processes was confirmed by analysing the grafted film using FTIR spectroscopy, which revealed the existence of absorption band at wave number of 1721 cm-1 (assigned to C=O), and that at 3385 cm-1 (assigned to -OH), and the physical endurance of the sample was evaluated by carrying out tensile strength measurement. The percent of grafting was determined according to the gravimetric method. The results indicated that the highest percent of grafting was obtained by application of 2-hour irradiation time, with monomer concentration of 30 % in water as a solvent, grafting temperature of 60 oC. Activity of grafted was evaluated by measurement of the absorption capacity toward water and Cu2+ ion, and revealed the increase of the absorption capacity with increased percent of grafting.   Keywords: Graft copolymerization, acrylic acid, low density polyethylene, gamma irradiation, water absorbency, absorption of cupric ion

The Investigation of the PAM / St-g-PAA /Bentonite Superabsorbent Composite in Model of Rain Garden

2011 ◽  
Vol 374-377 ◽  
pp. 1405-1408
Author(s):  
Wang Shu Tong ◽  
Yi He Zhang ◽  
Li Yu ◽  
Jiao Hao ◽  
Feng Zhu Lv
Keyword(s):  
Acrylic Acid ◽  
Graft Copolymer ◽  
In Situ Polymerization ◽  
Water Absorbency ◽  
Rain Garden ◽  
Retention Performance ◽  
Superabsorbent Composite

The polyacrylamide/starch-acrylic acid graft copolymer/bentonite composites with different concentrations of the bentonite and starch-acrylic acid graft copolymer were prepared by in-situ polymerization. The influence of the concentration of the bentonite and starch-acrylic acid graft copolymer on the water absorbency was investigated. The water absorbency of 115 g/g could be achieved with the composite composed of 50wt% bentonite, 17wt% starch-acrylic acid graft copolymer and 33wt% polyacrylamide. The excellent absorption and retention performance of the composite makes it potential to be applied in the model of Rain garden.

Soft ionic liquid based resistive memory characteristics in a two terminal discrete polydimethylsiloxane cylindrical microchannel

2020 ◽  
Vol 8 (38) ◽  
pp. 13368-13374
Author(s):  
Muhammad Umair Khan ◽  
Gul Hassan ◽  
Jinho Bae
Keyword(s):  
Ionic Liquid ◽  
Acrylic Acid ◽  
Sodium Hydroxide ◽  
Sodium Salt ◽  
Resistive Memory ◽  
Cylindrical Microchannel ◽  
Memory Characteristics ◽  
Poly Acrylic Acid

This paper proposes a novel soft ionic liquid (IL) electrically functional device that displays resistive memory characteristics using poly(acrylic acid) partial sodium salt (PAA-Na+:H2O) solution gel and sodium hydroxide (NaOH) in a thin polydimethylsiloxane (PDMS) cylindrical microchannel.

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