Definition Condensation polymerization, also known as polycondensation, is a polymerization process in which two or more monomers containing two or more reactive functional groups combine to form polymer chains while simultaneously releasing small molecules such as water, hydrogen chloride, methanol,…
Definition Solution polymerization is a polymer manufacturing process in which the monomer is dissolved in a suitable solvent before polymerization takes place. The reaction is initiated by heat or chemical initiators, with the solvent serving as the reaction medium to…
Definition Bulk polymerization, also known as mass polymerization, is a polymer production process in which the monomer polymerizes without the addition of solvents or dispersion media. Under the influence of heat, light, radiation, or chemical initiators, the monomer undergoes polymerization…
Definition Green chemistry, also known as environmentally benign chemistry, is the design of chemical products and processes that reduce or eliminate the use and generation of hazardous substances throughout the entire chemical lifecycle. Its objective is to maximize resource utilization…
Definition Suspension polymerization, also known as bead polymerization, is a polymer manufacturing process in which water-insoluble monomers are mechanically dispersed as droplets in a continuous medium, typically water, with the aid of dispersing agents. Polymerization occurs within these suspended droplets,…
Definition Emulsion polymerization is a polymer manufacturing process in which water-insoluble monomers are dispersed in water with the aid of surfactants (emulsifiers) and polymerized under mechanical agitation. Polymerization occurs within finely dispersed droplets or micelles, producing a stable polymer latex.…
정의: 고리 개방 중합(ROP)은 개시제나 촉매의 작용 하에 고리형 단량체가 고리 개방을 거쳐 선형 중합체 사슬을 형성하는 중합 공정이다. 기존의 가중합과 달리, 고리 개방 중합은 고리 구조를…
정의 중합이란 하나 이상의 단량체가 결합하여 저분자량 부산물을 생성하지 않고 고분자량 고분자를 형성하는 화학 반응을 말한다. 관여하는 단량체에 따라, 중합을 통해 단일 단량체로 이루어진 단일중합체나 두 개 이상의 단량체로 이루어진 공중합체가 생성될 수 있다…
정의: 비뉴턴 유체는 뉴턴의 점도 법칙에 따라 점도가 일정하게 유지되는 것이 아니라, 가해지는 전단 응력이나 전단 속도에 따라 점도가 변하는 모든 유체를 말한다. 물이나 공기와 같은 뉴턴 유체와 달리, 비뉴턴 유체는 다음과 같은 변화를 보인다…