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The monomer can be categorized into three classes. The first two classes are characterized by their respective Tg values. Soft monomers, characterized by low Tg values, include n-butyl acrylate, 2-ethyl hexyl acrylate and iso-octyl acrylate. These monomers are longer chain alkyl acrylates and exhibit low water solubility (i.e., high hydrophobicity). Hard monomers, characterized by high Tg values, include styrene, methyl methacrylate, ethyl acrylate and methyl acrylate. The third class is the functional monomer with various functional groups, such as carboxyl or hydroxyl. Examples of functional monomers are acrylic acid and hydroxyethyl acrylate,which are very water-soluble. The hydrophobicity of the hard monomer depends on the monomer structure. Methyl acrylate and ethyl acrylate, which are short-chain alkyl acrylates, have higher water solubility.
What else can I help you with?
What are the monomers in spandex?
Spandex polymers are composed of three different monomers. Dialcohol monomers make up the rubbery, soft part of the polymer while diamine and diisocyanate monomers make up the rigid, hard part of the polymer. The three monomers of spandex therefore are dialcohol, diamine and diisocyanate.
Is sodium a hard or a soft metal?
Sodium is considered a soft metal. It is malleable and easily cut with a knife.
Is soap hard or soft?
Soap can be both hard and soft, depending on the ingredients used in its formulation. Traditional bar soaps are usually hard, while liquid soaps tend to be soft. The hardness of soap is often influenced by the amount of oils and fats in the recipe.
What are the differences between hard and soft nucleophiles and how do their properties affect their reactivity in chemical reactions?
Hard nucleophiles are small, highly charged ions with localized electron density, while soft nucleophiles are larger, less charged ions with more diffuse electron density. Hard nucleophiles prefer to react with electrophiles that are also hard, while soft nucleophiles prefer soft electrophiles. This selectivity is known as the hard and soft acid-base theory. The reactivity of nucleophiles in chemical reactions is influenced by their size, charge, and electron density, with hard nucleophiles typically reacting faster with hard electrophiles, and soft nucleophiles reacting faster with soft electrophiles.
Is neon a soft or hard element?
Neon is niether hard or soft because it is a noble gas.
What are the monomers in spandex?
Spandex polymers are composed of three different monomers. Dialcohol monomers make up the rubbery, soft part of the polymer while diamine and diisocyanate monomers make up the rigid, hard part of the polymer. The three monomers of spandex therefore are dialcohol, diamine and diisocyanate.
Is brown soft or hard?
Hard
Is a black coral is a type a hard or soft?
hard
Is breakwater hard or soft engineering?
it is hard and sometimes soft
What is the different of soft bones and hard bones?
soft you can bend and hard you can not
Are Dolphins Hard Or Soft?
soft
Is neptunium hard or soft?
Soft
Is treated wood soft or hard?
"Treated wood can be soft or hard." But, generally what is bought from a lumberyard is soft.
What does solid feels like is it hard or soft?
Solid is hard. It is nt soft.
Are soft polyps and hard polyps different?
one is soft and the other is hard
Is larch hard wood or soft?
is larch wood soft or hard wood
What sort of food can be described as soft semihard or hard?
Cheese. There are four main types of cheese: soft, semi-soft, semi-hard, and hard.
