https://padlet.com/abaljon1/8svbwe4ulvr7 en-us 2018-11-01 21:37:59 UTC 2024-10-14 07:30:35 UTC hello@padlet.com https://padlet.com/abaljon1/8svbwe4ulvr7/wish/351806209 In my spare time I love to modify my car. A popular modification is to change the color of the car with a vinyl wrap, essentially a giant sticker that gives the look of a new paint job. The benefit of this is it can be undone and is much cheaper than a full paint job. The vinyl is made of PVC (polyvinyl chloride) which comes in two states- rigid (used in construction piping) and rubbery. In my group's proposal we discussed the idea of elasticity and memory, in my life I think the most prevalent example of memory is in this vinyl. If you heat up the material you can stretch it and thanks to its physical properties you can heat it again without tension and it will return to its original state potentially without any harm at all (up to about a 150% stretch). I have used a clip from CK Wraps on YouTube as he stretches the material and returns it to its original state. 
**Note: if the video says does not exist, click on the download arrow to view video**]]> 2019-04-15 20:31:58 UTC https://padlet.com/abaljon1/8svbwe4ulvr7/wish/351806209 https://padlet.com/abaljon1/8svbwe4ulvr7/wish/352507879 One of the topics we discussed on our proposal was temperature during the crystallization of a polymer. We focused on how temperature and speed dictate what our final product would be, an amorphous or crystalline material. Most of the time I like to have candles in my room and its flame reminds me of temperature since it brings heat which is needed during crystallization. It also reminds me on how although flames can be roughly the same size on every candle, each candle burns differently depending on its shape/system, just like a polymer. 

]]> 2019-04-18 08:17:37 UTC https://padlet.com/abaljon1/8svbwe4ulvr7/wish/352507879 https://padlet.com/abaljon1/8svbwe4ulvr7/wish/352888216 In our dance proposal, we mention making a dance routine about diffusion of particles in mucus. Mucus is an important defense mechanism for most organism against pathogens. Mucus is a network withhydrophobic crosslinks that hinders particle movement. High concentrations of mucus is able to trap particles more effectively. As shown in the picture, aloe Vera plant high mucus concentration is able to be efficient at protecting the plant from viruses or bacteria. ]]> 2019-04-21 01:04:33 UTC https://padlet.com/abaljon1/8svbwe4ulvr7/wish/352888216 https://padlet.com/abaljon1/8svbwe4ulvr7/wish/352933917 In our group we discussed how polymer can form, and its function throughout the life. Lastly, we talked about depolymerization and factors under which a polymer ceases to exist.  During spring break, I did a road trip to Memphis, and on the way we stopped at the Cadillac graveyard (see pic below). It made me think about how time and exposure to the surroundings destroys something that was used to be useful and functional and now not anymore. However,  in case of the Cadillacs, they were turned into Art which was interesting again because of our class where science is connected to art, such as dance.]]> 2019-04-21 17:12:14 UTC https://padlet.com/abaljon1/8svbwe4ulvr7/wish/352933917 https://padlet.com/abaljon1/8svbwe4ulvr7/wish/353170615 2019-04-22 20:00:29 UTC https://padlet.com/abaljon1/8svbwe4ulvr7/wish/353170615 https://padlet.com/abaljon1/8svbwe4ulvr7/wish/353170637 Foe thia Padlet I took a video of maple syrup flowing in a bottle. We can immediately see that the syrup has a much higher viscosity than water due it flowing much slower. You can also see that since it's in a bottle, the syrup will return back to its original state when the bottle is placed back, which can be thought of as a form of memory.]]> 2019-04-22 20:00:35 UTC https://padlet.com/abaljon1/8svbwe4ulvr7/wish/353170637 https://padlet.com/abaljon1/8svbwe4ulvr7/wish/353968503 This is a picture of a bridge that is made out of a composite of polymers. The engineers who designed this bridge probably chose the composite because it is lighter but with strength comparable to steel. It is important that the polymer used in this application has an appropriate glass transition temperature so that it has proper structural characteristics.]]> 2019-04-25 02:09:55 UTC https://padlet.com/abaljon1/8svbwe4ulvr7/wish/353968503 https://padlet.com/abaljon1/8svbwe4ulvr7/wish/355929757 I used these tea leaves to show the idea of memory and how the addition of heat and in this case moisture, led the dried and crumpled tea leaves to return to their original soft leaflike shape. ]]> 2019-05-01 18:31:06 UTC https://padlet.com/abaljon1/8svbwe4ulvr7/wish/355929757 https://padlet.com/abaljon1/8svbwe4ulvr7/wish/356060654 In our dance proposal our group mentioned the topics of memory and elasticity. Pictured are two scrunchies, that can stretch to be wound multiple times (elasticity) but when taken out of your hair/off your wrist can return back to its original shape (memory). ]]> 2019-05-02 04:14:59 UTC https://padlet.com/abaljon1/8svbwe4ulvr7/wish/356060654 https://padlet.com/abaljon1/8svbwe4ulvr7/wish/357384417 Our group did a study of the glass transition and crystalline transition points of the temperature vs time curve in our dance. I felt that a good real world example of this would be the sagging of glass window panes over time, becoming thicker over time. This would display the nature of amorphous solids,a s the glass did not posses enough crystalline to prevent creep over time. This image was collected from the web.]]> 2019-05-06 20:39:00 UTC https://padlet.com/abaljon1/8svbwe4ulvr7/wish/357384417 https://padlet.com/abaljon1/8svbwe4ulvr7/wish/357389053 Our group was looking into many aspects of a polymer, but what I took from it was how the polymer behaved as "monomers" can together in a melt and the properties that are attributed to it. We have hydrogen bond, translocation and the forming and disintegrating of the polymer with memory of how it formed. I drew inspiration from this picture I took of a solid polymer "melt" ]]> 2019-05-06 20:56:33 UTC https://padlet.com/abaljon1/8svbwe4ulvr7/wish/357389053 https://padlet.com/abaljon1/8svbwe4ulvr7/wish/358999987 One of the topic that I mention in the proposal is crystallization of polymer form. By adding a little acid disrupts the hydrogen bonds and permits the polymer chains to expand back to their original random coil form. 

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