25 research outputs found
分子プログラミングと鋳型重合による連鎖配列制御
Get PDF京都大学0048新制・課程博士博士(工学)甲第16046号工博第3369号新制||工||1509(附属図書館)28625京都大学大学院工学研究科高分子化学専攻(主査)教授 澤本 光男, 教授 中條 善樹, 教授 赤木 和夫学位規則第4条第1項該当Doctor of Philosophy (Engineering)Kyoto UniversityDFA
Precision Design of Polymer Gel Networks Based on Living Radical Polymerization and Monomer Sequence Control
No full textTemplate-Assisted Selective Radical Addition toward Sequence-Regulated Polymerization: Lariat Capture of Target Monomer by Template Initiator
No full textLiving Cationic Polymerization of an Azide-Containing Vinyl Ether toward Addressable Functionalization of Polymers
No full textSelective Single Monomer Addition in Living Cationic Polymerization: Sequential Double End-Functionalization in Combination with Capping Agent
No full textSelective Radical Addition with a Designed Heterobifunctional Halide: A Primary Study toward Sequence-Controlled Polymerization upon Template Effect
No full textPOLY 320-Template-assisted living radical polymerization: Synthesis of polymer-built-in initiators via living cationic polymerization and their template effect in sequence regulaion
No full textGrowing Crosslinker: Gel Synthesis Using Novel Divinyl Crosslinker with Expanding Chain-Length between Vinyl Groups by RAFT Polymerization
No full text
Effect of Monomer Sequence along Network Chains on Thermoresponsive Properties of Polymer Gels
No full textThe effect of monomer sequence along the network chain on the swelling behavior of polymer gels should be clarified for the advanced control of swelling properties of gel materials. To this end, we systematically investigated the swelling properties of poly(acrylamide derivative) gels with the same composition but different monomer sequence by utilizing two gel synthetic methods: copolymerization giving a random network and co-crosslinking giving a blocky network. Both of the copolymerization and the co-crosslinking gels were prepared from the combination of two of the three following monomers: hydrophilic N,N-dimethylacrylamide (DMAAm), hydrophobic N-n-butylacrylamide (NBAAm), and thermoresponsive N-isopropylacrylamide (NIPAAm) with various monomer compositions. The swelling measurement of the obtained gels showed totally different behaviors between the copolymerization and the co-crosslinking gels, even with the same monomer composition. The copolymerization gels had the average property from the two monomers, depending on monomer composition, because random monomer distribution changed the affinity of each network chain to water. On the other hand, the co-crosslinking gels behaved as if two components independently contributed to the swelling properties, probably due to the domain structure derived from two kinds of prepolymers
