Highly hydrophilic ultra-high molecular weight polyethylene powder and film prepared by radiation grafting of acrylic acid

2016 ◽  
Vol 382 ◽  
pp. 162-169 ◽  
Author(s):  
Honglong. Wang ◽  
Lu. Xu ◽  
Rong. Li ◽  
Lijuan. Pang ◽  
Jiangtao. Hu ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Acrylic Acid ◽  
High Molecular Weight ◽  
Radiation Grafting ◽  
Ultra High Molecular Weight ◽  
Polyethylene Powder

scholarly journals Degradation of ultra-high molecular weight poly(methyl methacrylate-co-butyl acrylate-co-acrylic acid) under ultra violet irradiation

RSC Advances ◽  
2017 ◽  
Vol 7 (1) ◽  
pp. 112-120 ◽  
Author(s):  
R. Shanti ◽  
A. N. Hadi ◽  
Y. S. Salim ◽  
S. Y. Chee ◽  
S. Ramesh ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Acrylic Acid ◽  
Methyl Methacrylate ◽  
High Molecular Weight ◽  
Butyl Acrylate ◽  
Ultra Violet ◽  
Seeded Emulsion Polymerization ◽  
Poly Methyl Methacrylate ◽  
Ultra High Molecular Weight ◽  
High Molecular Weight Poly

A new acrylic terpolymer, poly(methyl methacrylate-co-butyl acrylate-co-acrylic acid) [P(MMA-co-BA-co-AA)] of ultra-high molecular weight (UHMW) was synthesizedviaseeded emulsion polymerization.

Collagen-grafted ultra-high molecular weight polyethylene for biomedical applications

2008 ◽  
Vol 62 (6) ◽  
Author(s):  
Jindřiška Bočková ◽  
Lucy Vojtová ◽  
Radek Přikryl ◽  
Jan Čechal ◽  
Josef Jančář
Keyword(s):  
Molecular Weight ◽  
Acrylic Acid ◽  
High Molecular Weight ◽  
Carboxylic Acids ◽  
Contact Angle Measurement ◽  
Angle Measurement ◽  
Water Soluble ◽  
Air Plasma ◽  
Ultra High Molecular Weight ◽  
Collagen Immobilization

AbstractA novel material for hard tissue implants has been prepared. The ultra-high molecular weight polyethylene (UHMWPE) was grafted with collagen I, to improve its biocompatibility with soft tissue in case of its usage in bone engineering. Before collagen immobilization, commercial grade UHMWPE was treated with air plasma to introduce hydroperoxides onto the surface and subsequently grafted with carboxylic acid to functionalize the surface. Acrylic acid and itaconic acid were used for surface functionalization. After graft polymerization of carboxylic acids, collagen was immobilized covalently through the amide bonds between residual amino and carboxyl groups in the presence of water-soluble carbodiimide/hydroxysuccinimide cross-linking system. Each step of modification was characterized using spectroscopic (EPR, ATR-FTIR, and XPS), microscopic (SEM and CLSM), and contact angle measurement methods. The experimental results showed that plasma treatment led to a generation of free radicals on the UHMWPE surface resulting in the formation of unstable hydroperoxides. These reactive species were used to graft unsaturated carboxylic acids onto UHMWPE. Consequently, collagen was grafted via the-NH2 and-COOH reaction. The obtained experimental data along with microscopic observations confirmed the success of graft poly-merization of itaconic as well as of acrylic acid and collagen immobilization onto the UHMWPE surface.

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