Title:
アルケニルエーテル−ビニルエステル共重合体
Document Type and Number:
Japanese Patent JP6638930
Kind Code:
B2
Abstract:
To provide a temperature responsive polymer that has an arbitrary LCST in a wide temperature range of from a low temperature range of body temperature or room temperature to a high temperature range of 80°C or more, and to provide a method capable of providing the polymer easily. An alkenyl ether-vinyl ester copolymer containing a repeating unit derived from a hydroxyl group-containing alkenyl ether represented by the formula (1), and a repeating unit derived from a vinyl ester represented by the formula (2), and exhibiting temperature responsiveness showing a change in hydrophilicity and hydrophobicity at a prescribed temperature as a critical point, and the alkenyl ether-vinyl ester copolymer that has a lower critical solution temperature to water of from 1°C to 99°C:
wherein R 1 , R 2 , and R 3 each independently represent a hydrogen atom or an alkyl group having a number of carbon atoms of from 1 to 4; R 4 represents a linear or branched alkylene group having a number of carbon atoms of from 2 to 4; R 5 represents an acyl group having a number of carbon atoms of from 1 to 20; and p represents an integer of from 1 to 3.
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Inventors:
Shinji Sugihara
Application Number:
JP2015095799A
Publication Date:
February 05, 2020
Filing Date:
May 08, 2015
Export Citation:
Assignee:
National University Corporation Fukui University
Maruzen Petrochemical Co., Ltd.
Maruzen Petrochemical Co., Ltd.
International Classes:
C08F218/04; C08F216/14
Domestic Patent References:
| JP2002003890A | ||||
| JP58206607A | ||||
| JP60240710A | ||||
| JP59155411A | ||||
| JP2002253286A |
Foreign References:
| WO2013122106A1 | ||||
| WO2013121910A1 | ||||
| US6573327 |
Attorney, Agent or Firm:
Ono International Patent Office