Abstract
α-methylene-γ-butyrolactonc (MBL) is a polymerizable monomer obtained from tulips with similar structure to methyl methacrylate (MMA). So far, the preparation of PMBL with well-controlled molecular weight, polydispersity index and stereoregularity has not been achieved. Here we report the preparation of well-controlled PMBL by living anionic polymerization. Well-controlled PMBL could not be obtained via homopolymerization of MBL due to the poor solubility of PMBL in common organic solvents, which resulted in a heterogeneous system. Using amide-based solvents, a homogeneous reaction occurred. However, it is difficult to control the living anionic polymerization of MBL in such solvents because of the high reactivity of MBL. Well-controlled PMBL was successfully achieved when the reaction was initiated using a macro-initiator selected to improve the solubility of PMBL segments in common organic solvents. On the basis of this reaction system, we demonstrate that a block copolymer with well-controlled stereoregularity and high degree of polymerization could be synthesized that showed microphase separation.
| Original language | Japanese |
|---|---|
| Pages (from-to) | 447-452 |
| Number of pages | 6 |
| Journal | KOBUNSHI RONBUNSHU |
| Volume | 72 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Jan 1 2015 |
All Science Journal Classification (ASJC) codes
- Chemical Engineering (miscellaneous)
- Materials Science (miscellaneous)
- Environmental Science(all)
- Polymers and Plastics
Cite this
Precise synthesis of poly(α-methylene-γ-butyrolactone) and evaluation of its characteristics. / Sato, Masanao; Zheno, Xinyue; Hirai, Tomoyasu; Takahara, Atsushi.
In: KOBUNSHI RONBUNSHU, Vol. 72, No. 7, 01.01.2015, p. 447-452.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Precise synthesis of poly(α-methylene-γ-butyrolactone) and evaluation of its characteristics
AU - Sato, Masanao
AU - Zheno, Xinyue
AU - Hirai, Tomoyasu
AU - Takahara, Atsushi
PY - 2015/1/1
Y1 - 2015/1/1
N2 - α-methylene-γ-butyrolactonc (MBL) is a polymerizable monomer obtained from tulips with similar structure to methyl methacrylate (MMA). So far, the preparation of PMBL with well-controlled molecular weight, polydispersity index and stereoregularity has not been achieved. Here we report the preparation of well-controlled PMBL by living anionic polymerization. Well-controlled PMBL could not be obtained via homopolymerization of MBL due to the poor solubility of PMBL in common organic solvents, which resulted in a heterogeneous system. Using amide-based solvents, a homogeneous reaction occurred. However, it is difficult to control the living anionic polymerization of MBL in such solvents because of the high reactivity of MBL. Well-controlled PMBL was successfully achieved when the reaction was initiated using a macro-initiator selected to improve the solubility of PMBL segments in common organic solvents. On the basis of this reaction system, we demonstrate that a block copolymer with well-controlled stereoregularity and high degree of polymerization could be synthesized that showed microphase separation.
AB - α-methylene-γ-butyrolactonc (MBL) is a polymerizable monomer obtained from tulips with similar structure to methyl methacrylate (MMA). So far, the preparation of PMBL with well-controlled molecular weight, polydispersity index and stereoregularity has not been achieved. Here we report the preparation of well-controlled PMBL by living anionic polymerization. Well-controlled PMBL could not be obtained via homopolymerization of MBL due to the poor solubility of PMBL in common organic solvents, which resulted in a heterogeneous system. Using amide-based solvents, a homogeneous reaction occurred. However, it is difficult to control the living anionic polymerization of MBL in such solvents because of the high reactivity of MBL. Well-controlled PMBL was successfully achieved when the reaction was initiated using a macro-initiator selected to improve the solubility of PMBL segments in common organic solvents. On the basis of this reaction system, we demonstrate that a block copolymer with well-controlled stereoregularity and high degree of polymerization could be synthesized that showed microphase separation.
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UR - http://www.scopus.com/inward/citedby.url?scp=84957587978&partnerID=8YFLogxK
U2 - 10.1295/koron.2014-0101
DO - 10.1295/koron.2014-0101
M3 - 記事
AN - SCOPUS:84957587978
VL - 72
SP - 447
EP - 452
JO - Kobunshi Ronbunshu
JF - Kobunshi Ronbunshu
SN - 0386-2186
IS - 7
ER -