What is the structural difference between HDP and LDP? How does the structure account for different behaviour and nature, hence the use of a polymer?
What is the structural difference between HDP and LDP? How does the structure account for different behaviour and nature, hence the use of a polymer?
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1 Answer
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This is a short answer type question as classified in NCERT Exemplar
LDP: The polymerization of ethene under high pressure and temperature in the presence of peroxide catalyst gives low-density polythene. It is obtained through free radical addition and has a high branched structure. It is chemically inert and is a poor conductor of electricity. It is used for manufacturing toys, bottles.
HDP: When addition polymerization of ethene takes place in a hydrocarbon solvent in the presence of a catalyst such as triethylaluminium and Ziegler-Natta catalyst at high temperature and pressure then high-density polythene is formed. It consists of li
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CH2 = CHCN (acrylonitrile) is a monomer of orlon
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CH2 = CHCN (acrylonitrile) is a monomer of orlon
Monomer of neoprene polymer is
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Complete reaction is as follows:
The given reaction is called hydroboration oxidation.
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