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US 10,851,181 B2Granted
Polymer and method for producing polymer membrane
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsTakahiro Aoki, Tomoko Kawashima, Yuko Taniike
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Abstract
In order to obtain a crosslinked cellulose without derivatization, a polymer according to an embodiment of the present disclosure is a polymer having a structure in which cellulose substantially represented by the following formula (c1) is crosslinked with a polyfunctional epoxy compound: wherein in the formula (c1), n represents an integer of 2 or more.
Claims6
A polymer sheet formed of a polymer, wherein
- the polymer has a structure in which cellulose substantially represented by the following formula (c1) is crosslinked with a polyfunctional epoxy compound:
- in the formula (c1), n represents an integer of not less than 2;
- and
- a crosslinking point carbon ratio calculated based on a peak area included in a spectrum obtained by a solid state 13C-NMR is not less than 9% and not more than 13%;
- the polymer sheet has tensile strength of not less than 3 MPa and not more than 138 MPa in a dried state;
- and
- the polymer sheet has tensile strength of not less than 0.8 MPa and not more than 23 MPa in a water-absorbed state.
4 more elements
Dependencies are inferred from the claim text.