Applicability of photochemically generated pendant benzoyl peroxides in both “grafting from” and “grafting to” techniques
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Jaroslav Mosnáček
,
Ivan Lukáč
Abstract
Methyl methacrylate and styrene copolymers containing pendant benzil groups, such as 1-[4-(2-methacroyloxyethoxy)phenyl]-2-phenyl-1,2-ethanedione-co-methyl metacrylate (BzMA/MMA), 1-[4-(2-methacroyloxyethoxy)phenyl]-2-phenyl-1,2-ethanedione-co-styrene (BzMA/S), and 1-phenyl-2-(4-propenoylphenyl)-1,2-ethanedione-co-styrene (PCOCO/S), were prepared and used as precursors for photochemically generated pendant benzoyl peroxides. Decomposition of the pendant benzoyl peroxides was subsequently used in grafting processes. Either irradiation or a combination of irradiation with subsequent thermal treatment was adopted for grafting a thin layer of BzMA/MMA copolymer onto the surface of LDPE films. The grafting resulted in a significant decrease in contact angle of the film surface. The same activation strategy was successfully adopted to initiate the polymerisation of acrylic or methacrylic acids from the surface of styrene copolymer films containing the initiator precursor in the polymer side chains (BzMA/S and PCOCO/S). The successful surface grafting was proved by contact angles measurement as well as by infrared spectroscopic analysis.
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© 2012 Institute of Chemistry, Slovak Academy of Sciences
Artikel in diesem Heft
- Professor Dr. Štefan Toma—excellent scientist and teacher—celebrates his 75th birthday
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- Applicability of photochemically generated pendant benzoyl peroxides in both “grafting from” and “grafting to” techniques
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Artikel in diesem Heft
- Professor Dr. Štefan Toma—excellent scientist and teacher—celebrates his 75th birthday
- Palladium-catalysed Claisen rearrangement of 6-allyloxypurines
- Applicability of photochemically generated pendant benzoyl peroxides in both “grafting from” and “grafting to” techniques
- Spectral characterisation of new organic fluorescent dyes with an alkoxysilane moiety and their utilisation for the labelling of layered silicates
- Substituted homoallenyl aldehydes and their derivatives. Part 1: Homoallenyl aldehydes and protected hydrazones
- Substituted homoallenyl aldehydes and their derivatives. Part 2: Azines
- Methyltrioxorhenium-catalysed oxidation of secondary amines to nitrones in ionic liquids
- Thiophenium-ylides: Synthesis and reactivity
- Aminohydroxylation of divinylcarbinol and its application to the synthesis of bicyclic hydroxypyrrolidine and aminotetrahydrofuran building blocks
- Novel quercetin derivatives: synthesis and screening for anti-oxidant activity and aldose reductase inhibition
- Total synthesis of N,O,O,O-tetraacetyl-d-ribo-phytosphingosine and its 2-epi-congener
- A concise synthesis of enantiomerically pure aroyl-l-alanines and dihydroaroyl-l-alanines
- Synthesis and properties of macrocyclic diazene switch with binaphthalene unit attached via acrylamide linkers
- Conjugated push-pull salts derived from linear benzobisthiazole: preparation and optical properties
- Effect of reactants’ concentration on the ratio and yield of E,Z isomers of isatin-3-(4-phenyl)semicarbazone and N-methylisatin-3-(4-phenyl)semicarbazone
