Question
The process in which the characteristic properties of these materials are specified is called “programming.” For 10 points each:
[10m] Name this class of physically or chemically cross-linked smart materials that consist of a hard segment and a switching segment. Their behavior is characterized by a cycle on a plot of temperature, stress, and strain.
ANSWER: shape-memory polymers [prompt on polymers or copolymers; reject “shape-memory alloys”]
[10e] In temperature responsive shape-memory polymers, the transition temperature is typically the melting temperature or this temperature, above which a polymer becomes rubbery.
ANSWER: glass transition temperature
[10h] This hyphenated phrase describes shape-memory alloys and polymers that display a shape-memory effect on both heating and cooling. It also describes catalytic converters that oxidize carbon monoxide and hydrocarbons, but that do not reduce nitrogen oxides.
ANSWER: two-way [accept two-way shape memory polymers or two-way shape memory alloys; accept two-way catalytic convertors]
<Geoffrey Chen, Chemistry>
Summary
| 2023 Chicago Open | 08/05/2023 | Y | 9 | 7.78 | 78% | 0% | 0% |
Data
| In Search of Things Past | BHSU | 0 | 10 | 0 | 10 |
| Teach Us to Outgrow Our Ladness | Evans Hall destruction awaiters | 0 | 0 | 0 | 0 |
| Hang et al., Robert Browning | Curse you, Periplus the Platypus! | 0 | 0 | 0 | 0 |
| I would prefer not to | remembrance of lost time | 0 | 10 | 0 | 10 |
| Team Name Think Detail | Quasicrystal Silence | 0 | 10 | 0 | 10 |
| [moderator voice] yes that is so tenpointscore! is your team feeling bonuspilled? | The anti-STOON-dahl cabal (the tall Keyal et al.) | 0 | 10 | 0 | 10 |
| The Canadians | Don't be Afraid, the Clown's Afraid Too | 0 | 10 | 0 | 10 |
| Romanos IV Diogenes’ Macaroni Grill | The Catastrophic Implosion of Packet Sub | 0 | 10 | 0 | 10 |
| Saint Peter Andre 3000 | wave2: trimming membership codes 9655377758gp | 0 | 10 | 0 | 10 |