Polymer

3.0 Results and Discussion Figure 1 shows the infrared spectrum for both crosslinked and non-crosslinked films. Both carrageenan and vanillin contain similar functional groups such as CH4, C=O, C-O-C, C-OH. There is no significant difference in the spectrum that can be detected for crosslinked and non-crosslinked film samples. The spectrum can be divided into upper and lower spectrum. In the upper spectrum for the region of 2000 – 3600 cm-1, O-H stretching (3100 – 3600 cm-1) and C-H stretching…

Diaper Debate When my wife and I were expecting, we made a list of all the items that should be purchased before the baby arrived. The one item every one of our friends and relatives said we could not have enough of was diapers. We started early on by pricing plain, standard, and no frills disposable diapers. These were the diapers I knew and assumed were the only option for an on-the-go family like ours. I slowly noticed other families with new babies and trends among them. Not all babies…

Pectin yield was determined as weight of dry pectin against the weight of initial residues multiplied by 100%. Y=100(P/Bi) Where Y is the extracted pectin yield (%), P is the amount of extracted pectin in grams and Bi is the initial amount of sweet potato residues used to extract pectin. Equivalent weight and Degree of methoxylation The equivalent weight was determined according to the method by Barretina et al., (Barretina et al. 2012). 0.25g pectin was wetted with 5ml ethanol and topped…

Tanglin Polymers Case Study Why do you think so few requests were received? From a clear analysis of the case, it is evident that Tanglin Polymers was facing great managerial issues that affected the financial status of the company. In regards to the approval requests expected by Chan Kee Tong, it is clear that the plant managers were ignorant, as they did not treat the request email seriously. Ignorance in the management team is a great problem for most organizations that seek to enhance their…

There are several power source options in the market to choose from. After several hours of research, it was determined that the best two options were lithium polymer battery and a high capacity smart technology USB power bank. Design #1: LIPO Battery The LIPO battery is a great piece of equipment to power electronic devices such as RC planes and RC cars. These types of batteries can usually push out significantly…

Compare and Contrast: iPhone SE versus iPhone 6S. Apple is the biggest successor in the tech-world today. The booming demand of Apple products seems neverending. iPhone is one of the best selling products among them. Every year, apple introduces newer and advanced version of the iPhone. iPhone SE and iPhone 6S are the most recent devices launched by Apple. Both devices have their own pros and cons. The purpose of this paper is to summarize the similarities and the differences between iPhone SE…

diapers contain polyacrylic acid, a super-absorbent polymer. When some of this polymer was added to a beaker with water and stirred, it absorbed many times its weight in water. Polyacrylic acid is a polymer made…

Fabiola Fabiola has been working in polymer since 2010 when she discovered all the possibilities that the material offered. One workshop at a local arts and crafts shop was all it took to become captivated by the cheerful colors of polymer. Fabiola has taken those bright colors and crated art work that she describes as work filled with vitality and vibrant passion while inviting viewers to live life filled with sensitivity and beauty. She enjoys crating pieces that are filled with rounded…

different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. A polymer is a large molecule, or macromolecule, composed of many repeated subunits. Because of their broad range of properties, both synthetic and natural polymers play an essential and ubiquitous role in everyday life. Polymers range from familiar synthetic plastics such as polystyrene to natural biopolymers such as DNA and proteins that are fundamental…

case of hydrogels amount of water content was always more than the amount of polymer content. Due to their large water content, they usually exhibit the degree of flexibility similar to that of natural tissue hence due to this reason these hydrogels were known to have various applications. In case of wound healing, this hydrogels plays an important role in the delivery of multiple growth factors. Selection of polymers usually plays…