How to Make Nylon - Nylon Synthesis

Nylon is a polymer you can make yourself in the lab. A strand of nylon rope is pulled from the interface between two liquids. The demonstration sometimes is called the nylon rope trick because you can pull a continuous rope of nylon from the liquid indefinitely. Close examination of the rope will reveal that is is a hollow polymer tube. Nylon Materials a solution made from 6 g sebacoyl chloride in 70 ml heptanea solution made from 3 g 1,6-diaminohexane in 70 ml watermetal tweezers or forceps Make Nylon Use equal volumes of the two solutions. Tilt the beaker containing the 1,6-diaminohexane solution and slowly pour the sebacoyl chloride solution down the side of the beaker so that it forms the top layer.Dip tweezers into the interface of the liquids and pull them up to form a strand of nylon. Continue to pull the tweezers away from the beaker to lengthen the strand. You may wish to wrap the nylon rope around a glass rod.Rinse the nylon with water, ethanol or methanol to remove the acid from the nylon. Be sure to rinse the nylon before handling it or storing it. How the Nylon Rope Trick Works Nylon is the name given to any synthetic polyamide. Acyl chloride from any dicarboxylic acid reacts via a substitution reaction with any amine to form a nylon polymer and HCl. Safety and Disposal The reactants are irritating to the skin, so wear gloves throughout the procedure. Remaining liquid should be mixed to form nylon. The nylon should be washed prior to disposal. Any unreacted liquid should be neutralized prior to washing it down the drain. If the solution is basic, add sodium bisulfate. If the solution is acidic, add sodium carbonate. Reference Chemical Magic, 2nd Ed., Leonard A. Ford (1993) Dover Publications, Inc.

Proposal for Research on Fast Foods Essay - 912 Words

Proposal: Change in the fast food industry (we can take a specific restaurant like McDonald’s) to fight obesity Fast food and obesity The relationship between a nations fast food consumption and its rate of obesity has been studied. Schlosser said it seems wherever Americas fast food chains go, waistlines inevitably start expanding. Schlosser argues that the North America has the highest obesity rate of any industrialized nation. More than half of all adults and about one-quarter of all children are now classified as obese or overweight. Those proportions are believed to have increased dramatically during the last few decades, along with the consumption of fast food, with the rate of obesity among North American children twice as†¦show more content†¦* Discourage consumption of poor foods through a fat tax, earmarking the funds for nutrition and recreation. Here are some changes that McDonald’s implemented as a response to critique its unhealthy foods to give consumers more choices and healthier alternatives. Such initiatives include: * The introduction of the Salads Plus menu. This is now a permanent feature on the McDonalds menu, which brings a healthier, lighter focus to the original menu, consisting of a range of products that have 10 grams of fat or less, per serve. * Introducing nutrition information panels on the packaging of regular menu items. This allows for enhanced consumer information and education, enabling individuals and families to make better dietary choices. * Introducing hamburger buns that are low in sugar. * Reducing the calorie / kilojoule (energy) and sugar content of Salads Plus muffin and yoghurt menu items. * Launching an alternative (healthier) Happy Meal for children, containing fruit and vegetables. * Using a liquid canola cooking oil blend in restaurants, to aim for enhanced cooking methods. * Intro ducing a new breakfast menu known as â€Å"Quickstart†. McDonald’s have teamed up with some of Australia’s favourite brands to launch this new menu, which offers cereals, fruit, yoghurt and juices (that’s an example of what was done in Australia, we can offer to implement it here, in Canada). * In America, McDonald’s has made availableShow MoreRelatedResearch Proposal for Fast Food Consumption1143 Words   |  5 PagesIntroduction to Statistics Research proposal To: Mr. Yaseen Ahmed Meenai. Date: 9th June 2012. 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Prom Nights from Hell Chapter Nine Free Essays

He said, â€Å"Hi.† And she said, â€Å"Ho.† God. We will write a custom essay sample on Prom Nights from Hell Chapter Nine or any similar topic only for you Order Now GOD. Could she just say one normal thing? Thanks Crazy Mouth. He cocked an eyebrow at her. â€Å"I didn’t know you were coming to prom.† â€Å"I-changed my mind at the last minute.† â€Å"You look nice.† â€Å"You too.† Which was an understatement. He looked like a double stack of cinnamon apple pancakes with a side order of bacon and hash browns (extra crispy). Like the best thing Miranda had ever laid eyes on. She felt herself staring at him, then looked away, blushing. There was a moment of silence. Another one. Don’t let it go beyond four seconds, she reminded herself. It had to have been one second already; that left three, now two, say something! Say- â€Å"Are you wearing space pants?† Miranda asked him. â€Å"What?† How did it end? Oh, right. She said, â€Å"Because your butt is fine.† He gazed at her in that way he had like he was measuring her for a straitjacket. â€Å"I think-† he started, then stopped and seemed to be having trouble talking. Cleared his throat three times before finally saying, â€Å"I think the line is ‘because your butt is out of this world. â€Å" â€Å"Oh. That makes a lot more sense. I can see that. See, I read it in this book about how to get guys to like you and they said it was a line that never failed but I got interrupted in the middle and the line before it was about china-not the country, the kind you eat off of-and that is where the fine part was but I must have gotten them confused.† He just kept staring at her. She remembered the other advice from the book, â€Å"when in doubt, make an offer,† reached out, grabbed the first thing she could put her hand on, held it up to his chin, and said, â€Å"Nuts?† He looked like he was about to choke. He cleared his throat a few times, took the nuts from her, put the bowl back on the table, stepped toward her so that their noses were almost touching, and said, â€Å"You read a book about this?† Miranda couldn’t even hear his heartbeat over the sound of her own. â€Å"Yes, I did. Because clearly I wasn’t doing it right. I mean, if you kiss a guy and he pulls away from you and looks at you like your skin just turned to purple slime, clearly you need to spend some time at the self-help section of-â€Å" â€Å"You talk more when you’re nervous,† he said, still standing close to her. â€Å"No I don’t. That’s absurd. I’m just trying to explain to you-â€Å" â€Å"Do I make you nervous?† â€Å"No. I’m not nervous.† â€Å"You’re trembling.† â€Å"I’m cold. I’m wearing practically zero clothes.† His glance went to her lips, then back to her eyes. â€Å"I noticed.† Miranda gulped. â€Å"Look, I should-â€Å" He caught her wrist before she could take off. â€Å"That kiss you gave me was the hottest kiss I’ve ever had. I pulled away because I was afraid I wouldn’t be able to stop myself from ripping off your clothes. And that didn’t seem like the right way to end a first date. I didn’t want you to think that was all I was interested in.† She stared at him. There was silence again, but this time she didn’t worry about how long it went on. â€Å"Why didn’t you tell me?† she said finally. â€Å"I tried to, but every time I saw you afterward you disappeared. I got the feeling you were avoiding me.† â€Å"I didn’t want things to be awkward.† â€Å"Yeah, there was nothing awkward about you hiding behind a plant when I came into the dining hall at lunch on Wednesday.† â€Å"I wasn’t hiding. I was, um, breathing. You know, oxygen. From the plant. Very oxygenated, that air is.† Insert head in oven now. â€Å"Of course. I should have thought of that.† â€Å"It’s a health thing. Not many people know about it.† Leave until no longer HALF BAKED. â€Å"No, I’m sure they-â€Å" Miranda blurted. â€Å"Did you really mean that? About liking it when I kissed you?† â€Å"I really did. A lot.† Her hands were shaking. She reached up and pulled him toward her. Just as the music went off, the emergency-exit lighting went on and a tinny voice announced over a loudspeaker, â€Å"Please make your way to the nearest exit and leave the building immediately.† She and Will were pushed in different directions by the crowd surging to the door, being guided by four men in full body armor. The message kept repeating, but Miranda wasn’t hearing it or Ariel West screaming that someone was going to PAY for RUINING her NIGHT or the person saying that dude, this was the sweetest way to end a prom ever, man, he was so high. She was hearing again the one-two-three cha-cha heartbeat of Deputy Reynolds, slightly muffled by body armor. This was no drill. â€Å"It’s us, isn’t it?† Sibby said, rushing over to stand next to Miranda. â€Å"That’s why those storm-trooper guys are here. For us.† â€Å"Yeah.† â€Å"You were right. I should have stayed hidden. This is my fault. I don’t want anyone to get hurt. I’ll just turn myself over to these people, and they’ll have to let-â€Å" Miranda interrupted her. â€Å"After all that? With only three hours left to go? And you, blend-it-like-butter girl? No way. It’s not over. We can totally get out of this.† She tried to sound confident, but she was terrified. Just what do you think you’re doing? U-Suck channel demanded. I have no idea. Sibby looked at her, eyes blazing with hope. â€Å"Do you mean it? You have a way out?† Miranda swallowed, took a deep breath, and said to Sibby, â€Å"Follow me.† To herself: Please don’t fail. How to cite Prom Nights from Hell Chapter Nine, Essay examples