Chapter 21
Synthetic Polymers
Homopolymers의 특성과 명명법
Polymers that are made up of identical monomer units are called homopolymers. Only one repeating unit is involved in the construction of the homopolymer ...
공중합체의 특성과 명명법
Copolymers are the products obtained from the polymerization of multiple monomer species. So, in a polymer chain itself, there can be multiple repeating ...
Polymers: Defining Molecular Weight
Unlike small molecules with definite molecular weights, polymers are a mixture of individual polymer chains of varying lengths, each with a unique ...
고분자 : 분자량 분포
For any given polymer, the weight average molecular weight (Mw) is higher than, if not equal to, the number average molecular weight (Mn). The only ...
고분자 분류: 건축
Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like ...
고분자 분류: 결정도
Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. ...
고분자 분류: 입체 특이성
Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a ...
Radical Chain-Growth Polymerization: 개요
Chain-growth or addition polymerization is successive addition reactions of monomers with a polymer chain. In radical chain-growth polymerization, the ...
Radical Chain-Growth Polymerization: 메커니즘
The radical chain-growth polymerization mechanism consists of three steps: initiation, propagation, and termination of polymerization. The polymerization ...
급진적 사슬 성장 중합 : 사슬 분기
The skeletal structure of polymers synthesized via radical polymerization is always branched. For example, the polymerization of ethylene by radical ...
음이온 사슬 성장 중합 (Anionic Chain-Growth Polymerization) : 개요
The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth ...
음이온 사슬 성장 중합 : 메커니즘
The mechanism for anionic chain-growth polymerization involves initiation, propagation, and termination steps. In the initiation step, a nucleophilic ...
양이온 사슬 성장 중합 : 메커니즘
The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization ...
Ziegler-Natta 연쇄 성장 중합: 개요
Ziegler–Natta polymerization is another form of addition or chain‐growth polymerization used for synthesizing linear polymers over branched ...
Step-Growth Polymerization: 개요
Step-growth or condensation polymerization is a stepwise reaction of bi or multifunctional monomers to form long-chain polymers. As all the monomers are ...
Step-Growth Polymers의 분자량
Step growth polymerization involves bi or multifunctional monomers. Bifunctional monomers react to form linear step growth polymers, whereas ...
단계 성장 폴리머의 종류: 폴리에스터
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the ...
올레핀 메타테시스 중합: 개요
Recently, the development of olefin metathesis polymerization advanced the field of polymer synthesis. Simply put, the reorganization of substituents on ...
올레핀 복분해 중합: 고리 개방 복분해 중합(ROMP)
Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting ...
올레핀 복분해 중합: 비환식 디엔 중합(ADMET)
Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear ...
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