Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich consequence results when sustained high temperature exceeds a polymer's limits?
A)Accelerated chain scission degrades strength✓
B)Increased crystallinity improves dimensional stability
C)Enhanced crosslinking forms network bonds
D)Depolymerization drives increased toughness locally
💡 Explanation
Heating a polymer accelerates chain scission, because thermal energy breaks covalent bonds in the polymer backbone. Chain scission therefore lowers the average molecular weight and strength, rather than other effects like increased crosslinking or crystallinity, which demand new ordering.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which risk increases when using laser-induced breakdown spectroscopy (LIBS) on layered composite materials?
- Which outcome occurs when dopants concentrate along grain boundaries?
- Which outcome occurs when a silicon crystal contains excessive boron?
- Which mechanism causes a superconducting coil to quench rapidly?
- Which effect occurs when a pulsed laser ablates glass?
- Which consequence results when supercooled liquid tin solidifies below 232°C?