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POLY + MER image, + (produce energy< metal, low density, good…

- - - - cross-linked
        
        network
    - - CHIRAL CENTERS
        = carbon atoms
        =stereogenic center
      - TACTICITY
        
        ISOtactic
        R = same side
        
        SYNDIOtactic
        R = alternate sides
        
        Atactic
        R = rand positioned
- - - - ->1 or ->0 : transparent
      - rare =1
    - - GROW rate
        
        spherulite
        
        tougher
- - - - hard & brittle
        or vis and ez deform
- - - - thermo-SETTING
        
        Structure
        
        decomposition when heat
        
        Bond
        
        heat + chemical react =>degrades(doesn't melt)=>mold=> chemical reaction occurs
      - thermo-PLASTIC
        
        soluble =organic solvents
        
        heat=>soft=>shape=>cool
    - - LƯU HÓA
        Vulcanization = Sulfur reaction + high temp
        ie: lốp xe, với chất gia cường là muội than
    - - ~cotton candy
        +drawn under tension
  - - - step
        pư trùng hợp
        
        molecular weight
        
        no termination step
        
        Same reaction mechanism
        
        NO Need initiator
      - chain
        
        Strong bond
        ie:C-C covalent
        
        molecular weight