Hiroshima University, Graduate School of Engineering 

Polymer Technology Lab.

Nakai・Gotoh Lab

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 Japanese

  A polymer gel is a cross-linked three dimentional polymer networks that contains liquids in its internal space. It is a soft matter intermediate between a solid and a liquid. The gel shows discontinuous volume change when a external stimuli such as temperature, light and electric field, is imposed upon it. It is called a stimuli responsiveness.

 The polymer gel  swells or shrinks when external condition such as  ion strength or solvent composition is changed. It is called a phase transition. The phase transition in gels caused by four fundamental interactions, i.e. hydrogen bonding, hydrophobic interaction, van der Waals interaction and ionic interaction between ionized groups.

 There are many potential applications of the polymer gels  such as the separation of solutes or metal ions, immobilization of enzymes and drug delivery system. New application also has been developed, in which gel networks are used as a reaction, separation and/or chemo-mechanical energy transformation media, for example, adsorbents, membranes, chromatography and preparation of fine particles in the gel networks.

News

8^th Jul. 2011: Daisuke Kawai (M2) was awarded the excellent student scholarship by Hiroshima University.

24^th Mar. 2012: Sho Kimata (M2) received the manager of SCEJ chugoku-shikoku branch prize.

6^th Dec. 2012: Tatsufumi Aizono (M1) got an excellent presentation award at the SCEJ Takamatsu meeting.

23^rd Mar. 2013: Taichi Kawachi (M2) received a president prize of a social meeting of chemical engineering chugoku branch.

17^th Sep. 2013: Tatsufumi Aizono (M2) got an excellent poster prize at the SCEJ 45^th fall meeting.

27^th Sep. 2013: Shunsuke Kawase (M2) got an excellent poster prize at the 7^th meeting of the yong associeation of SCEJ chugoku-shikoku branch.

13^rd Dec. 2013: Ryoma Hirahara (M1) recieved an award of the manager of SCEJ chugoku-shikoku branch prize at the Graduate Students' Meeting.

 1^st Mar. 2014: Naoki UDA (B4) got an excellent presentation award at the SCEJ Studnts' Meeting at Sakai.

18^th Sep. 2014: Yasuhiro Ofuka (M2) got an excellent poster prize at the SCEJ 46^th fall meeting.

5^th Dec. 2014: Naoki UDA (M1) recieved an award of the manager of SCEJ chugoku-shikoku branch prize at the Graduate Students' Meeting.