PMID- 30961106 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231004 IS - 2073-4360 (Electronic) IS - 2073-4360 (Linking) VI - 10 IP - 11 DP - 2018 Oct 24 TI - Melt Crystallization Behavior and Crystalline Morphology of Polylactide/Poly(epsilon-caprolactone) Blends Compatibilized by Lactide-Caprolactone Copolymer. LID - 10.3390/polym10111181 [doi] LID - 1181 AB - Lactide-Caprolactone copolymer (LACL) was added to a Polylactide/Poly(epsilon-caprolactone) (PLA/PCL) blend as a compatibilizer through solution mixing and the casting method. The melt crystallization behavior and crystalline morphology of PLA, PLA/PCL, and PLA/PCL/LACL were investigated using differential scanning calorimeter (DSC) and polarized optical microscopy (POM), respectively. The temperature of the shortest crystallization time for the samples was observed at 105 degrees C. The overall isothermal melt crystallization kinetics of the three samples were further studied using the Avrami theory. Neat PLA showed a higher half-time of crystallization than that of the PLA/PCL and PLA/PCL/LACL blends, whereas the half-time of crystallization of PLA/PCL and PLA/PCL/LACL showed no significant difference. The addition of PCL decreased the spherulite size of crystallized PLA, and the nuclei density in the PLA/PCL/LACL blend was much higher than that of the PLA and PLA/PCL samples, indicating that LACL had a compatibilization effect on the immiscible PLA/PCL blend, thereby promoting the nucleation of PLA. The spherulites in the PLA/PCL and PLA/PCL/LACL blend exhibited a smeared and rough morphology, which can be attributed to the fact that PCL molecules migrated to the PLA spherulitic surface during the crystallization of PLA. FAU - Zhang, Chunmei AU - Zhang C AD - College of Chemistry and Materials Engineering, Guiyang University, Guiyang 550005, China. zhangzhang_87@126.com. FAU - Lan, Qiaofeng AU - Lan Q AUID- ORCID: 0000-0002-8941-6736 AD - Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China. lanqf2016@gmail.com. FAU - Zhai, Tianliang AU - Zhai T AUID- ORCID: 0000-0002-1203-350X AD - Guizhou Building Material Quality Supervision Testing Center, Guiyang 550000, China. ztl.mzl@163.com. FAU - Nie, Shengqiang AU - Nie S AD - College of Chemistry and Materials Engineering, Guiyang University, Guiyang 550005, China. nieshq1987@163.com. FAU - Luo, Jun AU - Luo J AD - College of Chemistry and Materials Engineering, Guiyang University, Guiyang 550005, China. luojun_gyu@sina.com. FAU - Yan, Wei AU - Yan W AD - College of Chemistry and Materials Engineering, Guiyang University, Guiyang 550005, China. lrasyw@163.com. LA - eng GR - GYU-KYZ[2018]03-3/Special Funding of Guiyang Science and Technology Bureau and Guiyang University/ GR - 2017158134/Major Construction Project of First-rate University in Guizhou Province/ GR - [2016]089/Natural Science Research Project of Guizhou Provincial Department of Education/ GR - 51703038/Natural Science Foundation of China/ PT - Journal Article DEP - 20181024 PL - Switzerland TA - Polymers (Basel) JT - Polymers JID - 101545357 PMC - PMC6290593 OTO - NOTNLM OT - compatibilization OT - melt crystallization OT - poly(epsilon-caprolactone) OT - polylactide COIS- The authors declare no conflict of interest. The funders had no role in: the design of the study; the collection, analyses, or interpretation of the data; the writing of the manuscript; or the decision to publish the results. EDAT- 2019/04/10 06:00 MHDA- 2019/04/10 06:01 PMCR- 2018/10/24 CRDT- 2019/04/10 06:00 PHST- 2018/08/26 00:00 [received] PHST- 2018/10/13 00:00 [revised] PHST- 2018/10/22 00:00 [accepted] PHST- 2019/04/10 06:00 [entrez] PHST- 2019/04/10 06:00 [pubmed] PHST- 2019/04/10 06:01 [medline] PHST- 2018/10/24 00:00 [pmc-release] AID - polym10111181 [pii] AID - polymers-10-01181 [pii] AID - 10.3390/polym10111181 [doi] PST - epublish SO - Polymers (Basel). 2018 Oct 24;10(11):1181. doi: 10.3390/polym10111181.