selected polymer terms for issue #352

[KhashiYaar]

• i appreciate a simple review, & If it looks ok, I’d be grateful for approval and merge to be included in the upcoming PMDco release.

This PR adds and refines a first set of polymer-related PMDco terms discussed in issue #352 and the related ClimOO feedback.

Included in this PR:

- monomer introduced as a PMDco class and linked to disposition to polymerize
polymerisation monomer remains treated as a role;
-disposition to polymerize introduced as a disposition borne by chemical entities that can undergo polymerization
- added resin role
resin is introduced only as resin role;
- curing definition was changed to a broadened definition to cover generic curing
- curing (polymers) is introduced as a subclass of curing specifically for polymers
- crosslinking is added and modeled as a separate process class
- OBI_0003611 precursor_role is imorted to the OBI import seed list

---

!! not included: Some items from issue #352 are intentionally left for follow-up work after the next PMDco release and after further discussion with PMDco team and confirmation that they are needed within PMDco scope:

• backbone role
• side group role
• oligomer
• prepolymer
• copolymer

[github-actions]

PMDco Quality Check

Auto-added annotations

file	terms	annotations added
pmdco-qualities.owl	1	2
Total	1	2

Hygiene issues

No issues found — all terms conform.

[KhashiYaar]

the PMDco-qualities.owl small metadata change appears to be an incidental annotation-only change rather than a part of the intended changes in the polymer-related edits highlighted in this PR.