A novel hollow microsphere acting on crystallization, mechanical, and thermal performance of poly(3‐hydroxybutyrate‐co‐4‐hydroxybutyrate)

Poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (P34HB) is a bio-originated and biodegradable semi-crystalline polyester. However, wide applications of the P34HB are hampered by its poor mechanical properties and processabilities. Divinylbenzene-maleic anhydride (DM) copolymer is a rigid hollow microsphere. In this work, 0.5 ~ 2.0 wt% DM was used as a novel nucleation agent in P34HB to improve the crystallization of P34HB in order to enhance its...