Synthesis of an azo macromolecular initiator composed of polyamide 4 and its initiation activity for the radical polymerization of vinyl monomers

Polyamide 4 containing an azo group (azo‐PA4) was synthesized by the ring‐opening polymerization of 2‐pyrrolidone when 4,4′‐azobiscyanopentanoyl chloride was used as an initiator. It was possible to control the molecular weight (MW) of the azo‐PA4s through the concentration of the initiator to some...

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Veröffentlicht in:Journal of applied polymer science 2012-11, Vol.126 (S2), p.E425-E432
Hauptverfasser: Kawasaki, Norioki, Yamano, Naoko, Takeda, Sahori, Ando, Hisanori, Nakayama, Atsuyoshi
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container_end_page E432
container_issue S2
container_start_page E425
container_title Journal of applied polymer science
container_volume 126
creator Kawasaki, Norioki
Yamano, Naoko
Takeda, Sahori
Ando, Hisanori
Nakayama, Atsuyoshi
description Polyamide 4 containing an azo group (azo‐PA4) was synthesized by the ring‐opening polymerization of 2‐pyrrolidone when 4,4′‐azobiscyanopentanoyl chloride was used as an initiator. It was possible to control the molecular weight (MW) of the azo‐PA4s through the concentration of the initiator to some extent, and the highest weight‐average MW obtained was 35 × 103. To assess the initiation activity of the azo‐PA4 for radical polymerization, styrene (St) was used as a vinyl monomer. The azo‐PA4 was found to initiate the radical polymerization of St to produce polymers. Analyses by FT‐IR spectroscopy, 1H‐NMR, and differential scanning calorimetry after the homopolymers [polyamide 4 (PA4) and polystyrene (PSt)] were removed by Soxhlet extraction showed that the remaining polymer was PA4‐block‐PSt. Azo‐PA4 was also found to have an initiation activity for other vinyl monomers (methyl methacrylate, vinyl acetate, etc.). © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
doi_str_mv 10.1002/app.36668
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Appl. Polym. Sci</addtitle><description>Polyamide 4 containing an azo group (azo‐PA4) was synthesized by the ring‐opening polymerization of 2‐pyrrolidone when 4,4′‐azobiscyanopentanoyl chloride was used as an initiator. It was possible to control the molecular weight (MW) of the azo‐PA4s through the concentration of the initiator to some extent, and the highest weight‐average MW obtained was 35 × 103. To assess the initiation activity of the azo‐PA4 for radical polymerization, styrene (St) was used as a vinyl monomer. The azo‐PA4 was found to initiate the radical polymerization of St to produce polymers. Analyses by FT‐IR spectroscopy, 1H‐NMR, and differential scanning calorimetry after the homopolymers [polyamide 4 (PA4) and polystyrene (PSt)] were removed by Soxhlet extraction showed that the remaining polymer was PA4‐block‐PSt. Azo‐PA4 was also found to have an initiation activity for other vinyl monomers (methyl methacrylate, vinyl acetate, etc.). © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012</description><subject>2-pyrrolidone</subject><subject>Azo</subject><subject>biodegradable</subject><subject>block copolymers</subject><subject>Initiators</subject><subject>Materials science</subject><subject>Monomers</subject><subject>Polyamide resins</subject><subject>polyamides</subject><subject>Polymerization</subject><subject>Polymers</subject><subject>Polymethyl methacrylates</subject><subject>radical polymerization</subject><subject>Radicals</subject><subject>Vinyl acetate</subject><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp1kc1O3DAURi3USkxpF30DS2xgEbAT_80SIYYipmVUWnVp3SS2MDhxameg4S144xpSuqjUlSX7nM9X90PoIyVHlJDyGIbhqBJCqB20oGQpCyZK9QYt8hst1HLJd9G7lG4JoZQTsUBP11M_3pjkEg4WQ4_hMeAOmhi64E2z9RCx693oYAwRN6EbQjLtMzsEP0HnWoNZ9lrsxvRKupBzmtHdu3HCNnv5BxyhdQ34F68z0T3OXE66d_3kcRf6kO_Te_TWgk_mw59zD31fnX07_VSsr84vTk_WRcMlU4Xhda24tFBaW1ZlwymwChRfKkG4raVQxvK6ApCy5FAxZhkzLa94bQgnEqo9dDDnDjH83Jo06s6lxngPvQnbpKmQlAuihMzo_j_obdjGPk-nKaMyU5yQTB3OVF5eStFYPUTXQZw0Jfq5HJ3L0S_lZPZ4Zh-cN9P_QX2y2bwaxWy4NJpffw2IdzpPKLn-8eVcb9ZfV9eXn1daVr8BmkeixQ</recordid><startdate>20121125</startdate><enddate>20121125</enddate><creator>Kawasaki, Norioki</creator><creator>Yamano, Naoko</creator><creator>Takeda, Sahori</creator><creator>Ando, Hisanori</creator><creator>Nakayama, Atsuyoshi</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20121125</creationdate><title>Synthesis of an azo macromolecular initiator composed of polyamide 4 and its initiation activity for the radical polymerization of vinyl monomers</title><author>Kawasaki, Norioki ; Yamano, Naoko ; Takeda, Sahori ; Ando, Hisanori ; Nakayama, Atsuyoshi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5748-e5bb857fa2ff232c51a43a8598605fb768ef5b3aa7725a344f44ed535be0507a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>2-pyrrolidone</topic><topic>Azo</topic><topic>biodegradable</topic><topic>block copolymers</topic><topic>Initiators</topic><topic>Materials science</topic><topic>Monomers</topic><topic>Polyamide resins</topic><topic>polyamides</topic><topic>Polymerization</topic><topic>Polymers</topic><topic>Polymethyl methacrylates</topic><topic>radical polymerization</topic><topic>Radicals</topic><topic>Vinyl acetate</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kawasaki, Norioki</creatorcontrib><creatorcontrib>Yamano, Naoko</creatorcontrib><creatorcontrib>Takeda, Sahori</creatorcontrib><creatorcontrib>Ando, Hisanori</creatorcontrib><creatorcontrib>Nakayama, Atsuyoshi</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of applied polymer science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kawasaki, Norioki</au><au>Yamano, Naoko</au><au>Takeda, Sahori</au><au>Ando, Hisanori</au><au>Nakayama, Atsuyoshi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis of an azo macromolecular initiator composed of polyamide 4 and its initiation activity for the radical polymerization of vinyl monomers</atitle><jtitle>Journal of applied polymer science</jtitle><addtitle>J. Appl. Polym. Sci</addtitle><date>2012-11-25</date><risdate>2012</risdate><volume>126</volume><issue>S2</issue><spage>E425</spage><epage>E432</epage><pages>E425-E432</pages><issn>0021-8995</issn><eissn>1097-4628</eissn><coden>JAPNAB</coden><abstract>Polyamide 4 containing an azo group (azo‐PA4) was synthesized by the ring‐opening polymerization of 2‐pyrrolidone when 4,4′‐azobiscyanopentanoyl chloride was used as an initiator. It was possible to control the molecular weight (MW) of the azo‐PA4s through the concentration of the initiator to some extent, and the highest weight‐average MW obtained was 35 × 103. To assess the initiation activity of the azo‐PA4 for radical polymerization, styrene (St) was used as a vinyl monomer. The azo‐PA4 was found to initiate the radical polymerization of St to produce polymers. Analyses by FT‐IR spectroscopy, 1H‐NMR, and differential scanning calorimetry after the homopolymers [polyamide 4 (PA4) and polystyrene (PSt)] were removed by Soxhlet extraction showed that the remaining polymer was PA4‐block‐PSt. Azo‐PA4 was also found to have an initiation activity for other vinyl monomers (methyl methacrylate, vinyl acetate, etc.). © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><doi>10.1002/app.36668</doi><tpages>8</tpages></addata></record>
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source Wiley Online Library Journals Frontfile Complete
subjects 2-pyrrolidone
Azo
biodegradable
block copolymers
Initiators
Materials science
Monomers
Polyamide resins
polyamides
Polymerization
Polymers
Polymethyl methacrylates
radical polymerization
Radicals
Vinyl acetate
title Synthesis of an azo macromolecular initiator composed of polyamide 4 and its initiation activity for the radical polymerization of vinyl monomers
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