yinfei
@yinfei
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female Serdang, Malaysia
yinfei
14 years ago
Emulsion P.->always preformed free radical!!water can quench anionic & cationic chain ends!!product=latex!!!
yinfei
14 years ago
Emulsion P. 2)monomer(styrene/methyl methacrylate)+a water soluble free radical initiator=>whole batch is shaked!!!
yinfei
14 years ago
Emulsion P.1)surfactant dissolved in water til CMC reached.2)interior of micelle give site for polymerization.
yinfei
14 years ago
Emulsion polymerization=1)liquid monomer suspended as liquid droplets 2)resultant polymer obtained as dispersed solid phase(beads)
yinfei
14 years ago
Bulk polymerizationion=prepolymerization reaction,polymerization screw, vaporizer for removal of residual monomer!
yinfei
14 years ago
Do or Die
yinfei
14 years ago 1
我爱自己,爱家人,爱大自然 (cozy)
yinfei
14 years ago 13
wonderful sunday!!
yinfei
14 years ago 2
我妹说:‘自从进了大学后,我都非常怀念中六的生活。因为这样,我不断地停下脚步,往后看。’其实,已经大四的我,也一直不停的停下脚步,往后看了很多很多。
yinfei
14 years ago
时间渐渐漫流