Chemistry Industrial Chemistry PMDC Conceptual Practice
PMDC Verified Question 7 of 41
Under which polymer classifications do modern synthetic industrial adhesives fall?
A
Thermoplastics exclusively
B
Thermosetting resins exclusively
C
Elastomers exclusively
D
Thermoplastics, thermosetting resins, and elastomers
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: Thermoplastics, thermosetting resins, and elastomers
Concept:

Synthetic adhesives encompass a broad range of polymeric architectures tailored for specific mechanical, thermal, and application requirements.

Formula / Reaction:

Qualitative concept / No formula required.

Solution:

  • Thermoplastics: Polyvinyl acetate (PVAc), polyacrylates, and hot-melts (EVA).


  • Thermosets: Epoxies, phenol-formaldehyde, urea-formaldehyde, and polyurethanes.


  • Elastomers: Polychloroprene (contact cement), nitrile rubber, and silicone adhesives.


Why other options are incorrect:

  • Options A, B, and C: Each option incorrectly limits synthetic adhesives to a single polymer category.

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