Styrenic polymer/organoclay nanocomposite prepared viain-situ polymerization with an azoinitiator linked to an epoxy oligomer

2006 ◽  
Vol 14 (6) ◽  
pp. 610-616 ◽  
Author(s):  
Han Mo Jeong ◽  
Mi Yeon Choi ◽  
Min Seok Kim ◽  
Jin Hee An ◽  
Jin Su Jung ◽  
...  
Keyword(s):  
Epoxy Oligomer ◽  
Styrenic Polymer

INVESTIGATION OF THE ISOTHERMAL RHEOKINETIC POLYMERIZATION OF THE EPOXY OLIGOMER

2019 ◽  
Vol 7 (3) ◽  
pp. 209-215
Author(s):  
Valeriy G. Gilev ◽  
Vjacheslav S. Chudinov ◽  
Sergei Vladimirovich Rusakov ◽  
Aleksey V. Kondyurin
Keyword(s):  
Epoxy Oligomer

scholarly journals Interface Bond Improvement of Sisal Fibre Reinforced Polylactide Composites with Added Epoxy Oligomer

Materials ◽  
2018 ◽  
Vol 11 (3) ◽  
pp. 398 ◽  
Author(s):  
Mingyang Hao ◽  
Hongwu Wu ◽  
Feng Qiu ◽  
Xiwen Wang
Keyword(s):  
Epoxy Oligomer ◽  
Sisal Fibre ◽  
Interface Bond

scholarly journals COMPOSITIONS BASED ON TRIPLE ETHYLENE-PROPYLENE COPOLYMER AND MODIFIED EPOXY OLIGOMER MIXTURES.

2021 ◽  
Vol 97 (05) ◽  
pp. 457-459
Author(s):  
I.H. Movlaev ◽  
◽  
G.H. Ibrahimkhalilova ◽  
Keyword(s):  
Epoxy Oligomer ◽  
Ethylene Propylene ◽  
Modified Epoxy

scholarly journals Influence of filler on the properties of compositions based on epoxy oligomer

2019 ◽  
pp. 39-40
Author(s):  
A. Yu. Musaeva
Keyword(s):  
Uniform Distribution ◽  
Epoxy Oligomer ◽  
The Matrix ◽  
The Impact ◽  
Impact Viscosity ◽  
Properties Of Composites

The properties of composites based on epoxy oligomer (EDO) and woody ash (WA) have been explored. As a result of the studies, it was proved that WA addition doubles the impact viscosity of composition, increases the density up to 40%, the hardness of the composite gradually increases with an increase of WA content. A uniform distribution of WA particles in the matrix is obtained.

scholarly journals Functionalization of styrenic polymer through acylation and grafting under microwave energy

2011 ◽  
Vol 43 (3) ◽  
pp. 265-271 ◽  
Author(s):  
Marcos E Coustet ◽  
M Susana Cortizo
Keyword(s):  
Microwave Energy ◽  
Styrenic Polymer

Effect of the chemical structure on the linear viscoelastic behavior of acrylic and styrenic polymer blends

2018 ◽  
Vol 67 ◽  
pp. 257-265 ◽  
Author(s):  
Juciklécia S. Reinaldo ◽  
Laurenice Martins Pereira ◽  
Erik dos Santos Silva ◽  
Marcelo M. Ueki ◽  
Edson N. Ito
Keyword(s):  
Polymer Blends ◽  
Chemical Structure ◽  
Viscoelastic Behavior ◽  
Linear Viscoelastic Behavior ◽  
Linear Viscoelastic ◽  
Styrenic Polymer

Effect of Modifying Photostabilizing Additives on the Properties of a Model Sample of an Epoxy Oligomer Cured with an Amine Curing Agent

2020 ◽  
Vol 93 (12) ◽  
pp. 1845-1851
Author(s):  
V. G. Zheleznyak ◽  
M. A. Khaskov ◽  
A. A. Mel’nikov ◽  
A. S. Serdtselyubova
Keyword(s):  
Epoxy Oligomer ◽  
Curing Agent ◽  
Model Sample ◽  
Amine Curing Agent ◽  
Amine Curing

Innovative technologies in corrosion-resistant coatings development aimed at ship navigation equipment protection

2021 ◽  
Vol 103 (3) ◽  
pp. 5-12
Author(s):  
Oleh Bezbakh
Keyword(s):  
Residual Stresses ◽  
Epoxy Resin ◽  
Epoxy Matrix ◽  
Phthalic Acid ◽  
Epoxy Oligomer ◽  
Acid Anhydride ◽  
Molecular Formula ◽  
Innovative Technologies ◽  
Composite Formation ◽  
The Matrix

The efficient use of some innovative technologies in adhesives with advanced operational characteristics development aimed at anti-corrosion properties increase of transport means has been substantiated in the paper under discussion. The above-mentioned technologies involving the use of some interaction-active ingredients forming the cross-linkable coatings composition, including some polymers, have provided their cohesion properties essential improvement. Epoxy diane oligomer ED-16 has been chosen as the main component for the matrix in the composite formation. The aliphatic resin DЕG-1 (GOST 10136-77) as a plasticizer has been added to the epoxy oligomer. The compound has been formed of the following concentration: epoxy resin ED-16: plasticizer DЕG -1 – 100: 40. The hardener of cold hardening polyethelenepolyamine PEPA (ТУ 6-05-241-202-78) has been used at the epoxy resin-based developed materials polymerization. Phthalic acid anhydride has been used as a modifier to improve the properties of epoxy composite materials. The modifier was added to the matrix in the following ratio: from 0,10 to 2,00 pts.wt. per 100 pts.wt. of epoxy oligomer ЕD-20. The molecular formula of the modifier is as follows: C8H4O3. Molar mass is 148,1 g/mol. Density is ρ = 1,52 г/см³. To form a composite material or a protective coating with some improved adhesive properties and inconsiderable residual stresses the phthalic acid anhydride as a modifier was found to be added to the epoxy matrix with the content q = 1,25 pts.wt. per 100 pts.wt. of the epoxy matrix (oligomer ЕD-20 + plasticizer DЕG -1). In this case, the adhesive strength of the coating is being increased from sа = 28,3 MPа to sа = 46,4 MPа, and residual stresses – from sз = 1,9 MPа to sз = 2,1 MPа. First of all, the improved properties of the modified materials were caused by the interaction of active carbonyl (С=О) groups of the modifier with nitrogen-containing (NH-) groups of the hardener. It has provided the increase of the composite cross-linking degree resulted in their both adhesive and cohesion properties improvement. Moreover, it was found that the modifier use in the compound with the content q = 1,0…1,5 00 pts.wt. per 100 00 pts.wt. of the matrix has provided the increase of the river water influenced coatings resistance from ρ = 12,1 Оm·cm2 до ρ = 21,2…22,4 Оm·cm2. Though, some further increase of the additive content in the coating has caused the deterioration of anti-corrosion characteristics of the materials. Thus, the conducted study has contributed to the determination of the most efficient content ratio of phthalic acid anhydride as a modifier to for the coatings of functional use.

Study of the microstructure of low-molecular rubbers

2021 ◽  
Vol 87 (11) ◽  
pp. 26-32
Author(s):  
A. A. Pushkareva ◽  
O. A. Vozisova ◽  
M. A. Leuhina ◽  
L. L. Khimenko ◽  
A. N. Ilyin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Glass Transition ◽  
Comparative Analysis ◽  
Low Temperature ◽  
Ir Spectroscopy ◽  
Rheological Properties ◽  
Polymer Chain ◽  
Epoxy Oligomer ◽  
Hydroxyl Groups ◽  
Structural Units

The oligomer microstructure, reflecting the configuration of the elementary units (cis-1,4-, trans-1,4-, and 1,2-) and their distribution order in the polymer chain, decisively affects the physicochemical and rheological properties of the oligomer. Parameters of microstructure-dependent transitions (glass transition) characterize the oligomer behavior under abnormal low-temperature conditions. We present the results of studying the microstructure of low-molecular rubbers. We determined the content of cis-1,4- and trans-1,4-structural links of poly-divinyl-isoprene-urethane-epoxy oligomer. The structure of polybutadiene HTPB-IV with terminal hydroxyl groups was analyzed using NMR and IR spectroscopy. A comparative analysis of the microstructure of the poly-divinyl-isoprene-urethane-epoxy oligomer and low molecular rubbers with a known content of structural units has been carried out. The obtained results can be used to obtain oligomers with the desired physicochemical and mechanical properties.

Sign in / Sign up

Export Citation Format

Share Document