Matches in SemOpenAlex for { <https://semopenalex.org/work/W2138133627> ?p ?o ?g. }
- W2138133627 endingPage "2383" @default.
- W2138133627 startingPage "2383" @default.
- W2138133627 abstract "Thiol end functionalized polyethylenes (PE-SH, Mn around 1000 g mol−1, Đ < 1.3) were used as nucleophiles in thia-Michael additions with different acrylic molecules. It was found that under commonly used practical conditions the addition to methacrylates was very difficult, whereas addition to acrylates was very efficient. First, block copolymers based on PE and poly(methyl methacrylate) (PMMA) were targeted by reaction of PE-SH with PMMA obtained by catalytic chain transfer polymerization (CCTP). The reaction however failed and detailed model experiments using butanethiol and a dimer of MMA showed that the solubilization temperature of PE-SH was an impediment to the success of the reaction. The lack of reactivity towards PMMA obtained by CCTP and methacrylate functions was advantageously used to react molecules containing both an acrylate and a methacrylate group in the presence of tributyl phosphine (PBu3) to produce methacrylate-type PE macromonomers. The presence of a hydroxyl function on 3-(acryloyloxy)-2-hydroxypropyl methacrylate induced side trans-esterification reactions catalyzed by PBu3. This was overcome by using the hydroxyl free 2-(acryloyloxy) ethyl methacrylate. With the latter, the desired PE macromonomer exhibited a functionality as high as 85%. Alternatively, 2-isocyanatoethyl methacrylate could also be reacted with PE-SH to produce a highly functionalized methacrylate type PE macromonomer (functionality 89%). Eventually, the efficiency of the thia-Michael addition of PE-SH onto poly(ethylene glycol) acrylate (PEG-acrylate) was used to synthesize the PE-b-PEG block copolymer." @default.
- W2138133627 created "2016-06-24" @default.
- W2138133627 creator A5000241119 @default.
- W2138133627 creator A5003118253 @default.
- W2138133627 creator A5014220805 @default.
- W2138133627 creator A5031287643 @default.
- W2138133627 creator A5045442501 @default.
- W2138133627 creator A5053584236 @default.
- W2138133627 creator A5060100783 @default.
- W2138133627 creator A5068058444 @default.
- W2138133627 creator A5070279969 @default.
- W2138133627 creator A5089385270 @default.
- W2138133627 date "2012-01-01" @default.
- W2138133627 modified "2023-10-17" @default.
- W2138133627 title "Polyethylene end functionalization using thia-Michael addition chemistry" @default.
- W2138133627 cites W1970019725 @default.
- W2138133627 cites W1976814922 @default.
- W2138133627 cites W1978854006 @default.
- W2138133627 cites W1982052532 @default.
- W2138133627 cites W1983415864 @default.
- W2138133627 cites W1983865998 @default.
- W2138133627 cites W1983987463 @default.
- W2138133627 cites W1986352004 @default.
- W2138133627 cites W1987779096 @default.
- W2138133627 cites W1988688239 @default.
- W2138133627 cites W1993625795 @default.
- W2138133627 cites W2007559485 @default.
- W2138133627 cites W2018277210 @default.
- W2138133627 cites W2019109684 @default.
- W2138133627 cites W2020882510 @default.
- W2138133627 cites W2028227252 @default.
- W2138133627 cites W2034176517 @default.
- W2138133627 cites W2042228580 @default.
- W2138133627 cites W2054384160 @default.
- W2138133627 cites W2061290455 @default.
- W2138133627 cites W2061438023 @default.
- W2138133627 cites W2065921708 @default.
- W2138133627 cites W2083864614 @default.
- W2138133627 cites W2099784470 @default.
- W2138133627 cites W2113007722 @default.
- W2138133627 cites W2115221815 @default.
- W2138133627 cites W2121632477 @default.
- W2138133627 cites W2122232642 @default.
- W2138133627 cites W2126562768 @default.
- W2138133627 cites W2127768433 @default.
- W2138133627 cites W2132189134 @default.
- W2138133627 cites W2143312263 @default.
- W2138133627 cites W2150978395 @default.
- W2138133627 cites W2154678311 @default.
- W2138133627 cites W2157479160 @default.
- W2138133627 cites W2167539127 @default.
- W2138133627 cites W2168806863 @default.
- W2138133627 cites W3036442760 @default.
- W2138133627 cites W4241540641 @default.
- W2138133627 cites W4256503849 @default.
- W2138133627 cites W4301517061 @default.
- W2138133627 cites W2138451775 @default.
- W2138133627 doi "https://doi.org/10.1039/c2py20199b" @default.
- W2138133627 hasPublicationYear "2012" @default.
- W2138133627 type Work @default.
- W2138133627 sameAs 2138133627 @default.
- W2138133627 citedByCount "21" @default.
- W2138133627 countsByYear W21381336272012 @default.
- W2138133627 countsByYear W21381336272013 @default.
- W2138133627 countsByYear W21381336272014 @default.
- W2138133627 countsByYear W21381336272015 @default.
- W2138133627 countsByYear W21381336272016 @default.
- W2138133627 countsByYear W21381336272017 @default.
- W2138133627 countsByYear W21381336272018 @default.
- W2138133627 countsByYear W21381336272019 @default.
- W2138133627 crossrefType "journal-article" @default.
- W2138133627 hasAuthorship W2138133627A5000241119 @default.
- W2138133627 hasAuthorship W2138133627A5003118253 @default.
- W2138133627 hasAuthorship W2138133627A5014220805 @default.
- W2138133627 hasAuthorship W2138133627A5031287643 @default.
- W2138133627 hasAuthorship W2138133627A5045442501 @default.
- W2138133627 hasAuthorship W2138133627A5053584236 @default.
- W2138133627 hasAuthorship W2138133627A5060100783 @default.
- W2138133627 hasAuthorship W2138133627A5068058444 @default.
- W2138133627 hasAuthorship W2138133627A5070279969 @default.
- W2138133627 hasAuthorship W2138133627A5089385270 @default.
- W2138133627 hasConcept C132050475 @default.
- W2138133627 hasConcept C136520611 @default.
- W2138133627 hasConcept C15920480 @default.
- W2138133627 hasConcept C178790620 @default.
- W2138133627 hasConcept C185592680 @default.
- W2138133627 hasConcept C188027245 @default.
- W2138133627 hasConcept C2775856024 @default.
- W2138133627 hasConcept C2777516009 @default.
- W2138133627 hasConcept C2777935641 @default.
- W2138133627 hasConcept C2779989194 @default.
- W2138133627 hasConcept C44228677 @default.
- W2138133627 hasConcept C521977710 @default.
- W2138133627 hasConceptScore W2138133627C132050475 @default.
- W2138133627 hasConceptScore W2138133627C136520611 @default.
- W2138133627 hasConceptScore W2138133627C15920480 @default.
- W2138133627 hasConceptScore W2138133627C178790620 @default.
- W2138133627 hasConceptScore W2138133627C185592680 @default.