SAN Copolymer by Suspension Polymerization. II.Bead Size Distribution and Molecular Weight
IR@IIP: CSIR-Indian Institute of Petroleum, Dehradun
View Archive Info| Field | Value | |
| Creator |
Bhargava,G.S
Khan,H.U Bhattacharyya,K.K |
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| Date |
2009-07-22T11:10:47Z
2009-07-22T11:10:47Z 2009-07-22T11:10:47Z |
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| Identifier |
http://hdl.handle.net/123456789/358
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| Description |
Beads of SAN copolymer produced by suspension polymerization have sizes distributed over the
range of 0.2-3.0 mm; 700/0-800/0 of these are in the range of 0.4-0.8 mm diameter. Studies on molecular
weight and molecular weight distribution showed that.she average molecular weight of the polymer
was higher with increasing sizes of beads. Fractionation of small-, medium-, and large-sized beads
as well as determination of molecular weight by GPC provided clear evidence that there is also an
increase of polydispersity and higher molecular weight ends with increasing diameter of beads. This
increase in molecular weight and polydispersity in larger beads is probably due to slow thermal
polymerization in near absence of initiator toward the end of polymerization.
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| Language |
en_US
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| Subject |
Waxes
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| Title |
SAN Copolymer by Suspension Polymerization. II.Bead Size Distribution and Molecular Weight
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| Type |
Article
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