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Advances in Polymer Technology
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Advances in Polymer Technology
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2022
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Article
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Fig 57
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Review Article
Biodegradable Polymers for Microencapsulation Systems
Figure 57
SEM micrographs of PU microcapsules: (a) S1, (b) S2, (c) S3, and (d) S4 [
151
].
(a)
(b)
(c)
(d)